Chlorpyrifos (T3D0127)

IdentificationTaxonomyBiological PropertiesPhysical PropertiesToxicity ProfileSpectraConcentrationsLinksReferencesGene RegulationTargets (55)XML
Targets (55)
Record Information
Version2.0
Creation Date2009-03-06 18:58:07 UTC
Update Date2014-12-24 20:21:10 UTC
Accession NumberT3D0127
Identification
Common NameChlorpyrifos
ClassSmall Molecule
DescriptionChlorpyrifos (IUPAC name: O,O-diethyl O-3,5,6-trichloropyridin-2-yl phosphorothioate) is a crystalline organophosphate insecticide. It was introduced in 1965 by Dow Chemical Company and is known by many trade names (see table), including Dursban and Lorsban. It acts on the nervous system of insects by inhibiting acetylcholinesterase. Chlorpyrifos is moderately toxic to humans, and exposure has been linked to neurological effects, persistent developmental disorders, and autoimmune disorders. Exposure during pregnancy retards the mental development of children, and most use in homes has been banned since 2001 in the U.S. In agriculture, it remains one of the most widely used organophosphate insecticides, according to the United States Environmental Protection Agency (EPA).
Compound Type
  • Aromatic Hydrocarbon
  • Household Toxin
  • Insecticide
  • Metabolite
  • Organic Compound
  • Organochloride
  • Organophosphate
  • Pesticide
  • Synthetic Compound
Chemical Structure
Thumb
MOLSDFPDBSMILESInChI
Synonyms
Synonym
Bonidel
Brodan
Chloropyrifos
Chloropyriphos
Chlorpyrifos-ethyl
Chlorpyriphos
Chlorpyriphos-ethyl
Chlorpyrofos
Chlorpyrophos
Coroban
Danusban
Detmol U.A.
Dowco 179
Durmet
Dursban
Dursban 10CR
Dursban 2E
Dursban 4E
Dursban F
Dursban R
Ethyl chlorpyriphos
Geodinfos
Killmaster
Lentrek
Lorsban
m-Chlorpyrifos
O,O-Diaethyl-O-3,5,6-trichlor-2-pyridylmonothiophosphat
O,O-Diethyl O-(3,5,6-trichloro-2-pyridinyl)phosphorothioate
O,O-Diethyl O-(3,5,6-Trichloro-2-pyridyl) phosphorothioate
O,O-Diethyl O-(3,5,6-trichloropyridin-2-yl) phosphorothioate
O,O-Diethyl O-(3,5,6-trichloropyridin-2-yl) thiophosphate
O,O-Diethyl-O-(3,5,6-trichloro-2-pyridyl)phosphorothioate
Pageant
Phosphorothioic acid, O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) ester
Piridane
Pyrinex
Silrifos
Spannit
Stipend
SuSCon
Suscon blue
Suscon green
Tafaban
Terial
Trichlorpyrphos
Zidil
Chemical FormulaC9H11Cl3NO3PS
Average Molecular Mass350.586 g/mol
Monoisotopic Mass348.926 g/mol
CAS Registry Number2921-88-2
IUPAC NameO,O-diethyl O-3,5,6-trichloropyridin-2-yl phosphorothioate
Traditional Nameterial
SMILESCCOP(=S)(OCC)OC1=C(Cl)C=C(Cl)C(Cl)=N1
InChI IdentifierInChI=1S/C9H11Cl3NO3PS/c1-3-14-17(18,15-4-2)16-9-7(11)5-6(10)8(12)13-9/h5H,3-4H2,1-2H3
InChI KeyInChIKey=SBPBAQFWLVIOKP-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as aryl thiophosphates. These are organic compounds containing the thiophosphoric acid functional group or a derivative thereof, with the general structure ROP(OR')(OR'')=S, where at least one R-group is an aryl group.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassOrganic thiophosphoric acids and derivatives
Sub ClassThiophosphoric acid esters
Direct ParentAryl thiophosphates
Alternative Parents
Substituents
  • Aryl thiophosphate
  • Thiophosphate triester
  • Polyhalopyridine
  • 2-halopyridine
  • Aryl chloride
  • Aryl halide
  • Pyridine
  • Heteroaromatic compound
  • Azacycle
  • Organoheterocyclic compound
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organochloride
  • Organohalogen compound
  • Organic oxygen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
Applications
Biological Roles
Chemical Roles
Physical Properties
StateSolid
AppearanceWhite crystals.
Experimental Properties
PropertyValue
Melting Point42°C
Boiling PointNot Available
Solubility0.00112 mg/mL at 24°C
LogP4.96
Predicted Properties
PropertyValueSource
Water Solubility0.0014 g/LALOGPS
logP5.15ALOGPS
logP4.78ChemAxon
logS-5.4ALOGPS
pKa (Strongest Basic)-4.2ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area40.58 ŲChemAxon
Rotatable Bond Count6ChemAxon
Refractivity79 m³·mol⁻¹ChemAxon
Polarizability30.4 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0002-2793000000-24fe8c73aae05cb109a62017-09-12View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0002-2794000000-df67df73c4dd26908db12017-09-12View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0002-2793000000-24fe8c73aae05cb109a62018-05-18View Spectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0002-2794000000-df67df73c4dd26908db12018-05-18View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-02vv-4879000000-9255cc8373a5b6df3d652017-09-01View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-00di-0119000000-40638c6cc56c702af00f2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-0002-0309000000-1c03b781190605e158ab2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-0002-1920000000-1f0cc45d40a433cd21db2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-01ot-2910000000-ae08635e79dc0112ef172017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-01ot-2910000000-b384378ff2454771bc142017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-01ot-2900000000-3169dbfdf2b277cfa7c02017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-08fs-2900000000-b9485df818d11c39fef72017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-0002-0309000000-e0f5343f2722d612251f2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-0002-1910000000-bfd22e25d1af7f7accb32017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-01ot-2910000000-ba821b94f503bfeb92352017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-01ot-2900000000-9bb1451e70826e7e9a9f2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-01ot-2900000000-9ce44e25c83ae56e97f02017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-08fs-2900000000-b3d73af1ad2b48fb311b2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITFT , positivesplash10-00di-0119000000-ba99c1365306cb0060592017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - ESI-ITFT , positivesplash10-006t-0916000000-e5066adbf2b26421940a2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , positivesplash10-01ot-0912000000-574ee0c0da4a9208c3642017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-00di-0119000000-9c6de680a79a370a94482021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-00di-0019000000-8f591ca38c38b7d4aefe2021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 60V, Positivesplash10-01ot-2900000000-f12e60a6223e79be2b2f2021-09-20View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-006t-0019000000-a09b1f8553c2f9ff157e2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-006x-2198000000-678ca9f31d75ee655aa02016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0574-9831000000-b360760e7ac0a1382d5e2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0fr2-0329000000-1c8dc6df96eaf1f4e2792016-08-04View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00yl-0595000000-04c8a10e9e94fe0b4a812016-08-04View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-000f-0590000000-f8e446946e10066540eb2016-08-04View Spectrum
MSMass Spectrum (Electron Ionization)splash10-002b-8972000000-01227c0965379003bd5c2014-09-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, CDCl3, experimental)Not Available2014-09-20View Spectrum
1D NMR13C NMR Spectrum (1D, 100.40 MHz, CDCl3, experimental)Not Available2014-09-23View Spectrum
Toxicity Profile
Route of ExposureOral (9) ; inhalation (9) ; dermal (9)
Mechanism of ToxicityChlorpyrifos is a cholinesterase or acetylcholinesterase (AChE) inhibitor. A cholinesterase inhibitor (or 'anticholinesterase') suppresses the action of acetylcholinesterase. Because of its essential function, chemicals that interfere with the action of acetylcholinesterase are potent neurotoxins, causing excessive salivation and eye-watering in low doses, followed by muscle spasms and ultimately death. Nerve gases and many substances used in insecticides have been shown to act by binding a serine in the active site of acetylcholine esterase, inhibiting the enzyme completely. Acetylcholine esterase breaks down the neurotransmitter acetylcholine, which is released at nerve and muscle junctions, in order to allow the muscle or organ to relax. The result of acetylcholine esterase inhibition is that acetylcholine builds up and continues to act so that any nerve impulses are continually transmitted and muscle contractions do not stop. Among the most common acetylcholinesterase inhibitors are phosphorus-based compounds, which are designed to bind to the active site of the enzyme. The structural requirements are a phosphorus atom bearing two lipophilic groups, a leaving group (such as a halide or thiocyanate), and a terminal oxygen.
MetabolismMetabolism of organophosphates occurs principally by oxidation, by hydrolysis via esterases and by reaction with glutathione. Demethylation and glucuronidation may also occur. Oxidation of organophosphorus pesticides may result in moderately toxic products. In general, phosphorothioates are not directly toxic but require oxidative metabolism to the proximal toxin. The glutathione transferase reactions produce products that are, in most cases, of low toxicity. Paraoxonase (PON1) is a key enzyme in the metabolism of organophosphates. PON1 can inactivate some organophosphates through hydrolysis. PON1 hydrolyzes the active metabolites in several organophosphates insecticides as well as, nerve agents such as soman, sarin, and VX. The presence of PON1 polymorphisms causes there to be different enzyme levels and catalytic efficiency of this esterase, which in turn suggests that different individuals may be more susceptible to the toxic effect of organophosphate exposure.
Toxicity ValuesLD50: 102 mg/kg (Oral, Rat) (7) LD50: 1233 mg/kg (Dermal, Rabbit) (7) LD50: 192 mg/kg (Intraperitoneal, Mouse) (5) LC50: 560 mg/m3 over 4 hours (Inhalation, Rat) (7)
Lethal Dose300 mg/kg for an adult human. (6)
Carcinogenicity (IARC Classification)Spraying and application of nonarsenical insecticides entail exposures that are probably carcinogenic to humans (Group 2A). (10)
Uses/SourcesChlorpyrifos is used as a pesticide. In the home, it is used to control cockroaches, fleas, and termites; it is also used in some pet flea and tick collars. On the farm, it is used to control ticks on cattle and as a spray to control crop pests. (9)
Minimum Risk LevelAcute Oral: 0.003 mg/kg/day (8) Intermediate Oral: 0.003 mg/kg/day (8) Chronic Oral: 0.001 mg/kg/day (8)
Health EffectsAcute exposure to cholinesterase inhibitors can cause a cholinergic crisis characterized by severe nausea/vomiting, salivation, sweating, bradycardia, hypotension, collapse, and convulsions. Increasing muscle weakness is a possibility and may result in death if respiratory muscles are involved. Accumulation of ACh at motor nerves causes overstimulation of nicotinic expression at the neuromuscular junction. When this occurs symptoms such as muscle weakness, fatigue, muscle cramps, fasciculation, and paralysis can be seen. When there is an accumulation of ACh at autonomic ganglia this causes overstimulation of nicotinic expression in the sympathetic system. Symptoms associated with this are hypertension, and hypoglycemia. Overstimulation of nicotinic acetylcholine receptors in the central nervous system, due to accumulation of ACh, results in anxiety, headache, convulsions, ataxia, depression of respiration and circulation, tremor, general weakness, and potentially coma. When there is expression of muscarinic overstimulation due to excess acetylcholine at muscarinic acetylcholine receptors symptoms of visual disturbances, tightness in chest, wheezing due to bronchoconstriction, increased bronchial secretions, increased salivation, lacrimation, sweating, peristalsis, and urination can occur. Certain reproductive effects in fertility, growth, and development for males and females have been linked specifically to organophosphate pesticide exposure. Most of the research on reproductive effects has been conducted on farmers working with pesticides and insecticdes in rural areas. In females menstrual cycle disturbances, longer pregnancies, spontaneous abortions, stillbirths, and some developmental effects in offspring have been linked to organophosphate pesticide exposure. Prenatal exposure has been linked to impaired fetal growth and development. Neurotoxic effects have also been linked to poisoning with OP pesticides causing four neurotoxic effects in humans: cholinergic syndrome, intermediate syndrome, organophosphate-induced delayed polyneuropathy (OPIDP), and chronic organophosphate-induced neuropsychiatric disorder (COPIND). These syndromes result after acute and chronic exposure to OP pesticides.
SymptomsChlorpyrifos exposure may produce a variety of effects on the nervous system including headaches, blurred vision, lacrimation, excessive salivation, runny nose, dizziness, confusion, muscle weakness or tremors, nausea, diarrhea, and sudden changes in heart rate. High levels may result in severe sweating, loss of bowel control, severe muscle tremors, seizures, loss of consciousness, coma, or death. (9)
TreatmentIf the compound has been ingested, rapid gastric lavage should be performed using 5% sodium bicarbonate. For skin contact, the skin should be washed with soap and water. If the compound has entered the eyes, they should be washed with large quantities of isotonic saline or water. In serious cases, atropine and/or pralidoxime should be administered. Anti-cholinergic drugs work to counteract the effects of excess acetylcholine and reactivate AChE. Atropine can be used as an antidote in conjunction with pralidoxime or other pyridinium oximes (such as trimedoxime or obidoxime), though the use of '-oximes' has been found to be of no benefit, or possibly harmful, in at least two meta-analyses. Atropine is a muscarinic antagonist, and thus blocks the action of acetylcholine peripherally.
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDNot Available
HMDB IDHMDB41856
PubChem Compound ID2730
ChEMBL IDCHEMBL463210
ChemSpider ID2629
KEGG IDC14322
UniProt IDNot Available
OMIM ID
ChEBI ID34631
BioCyc IDNot Available
CTD IDD004390
Stitch IDChlorpyrifos
PDB IDNot Available
ACToR ID465
Wikipedia LinkChlorpyrifos
References
Synthesis ReferenceNot Available
MSDST3D0127.pdf
General References
  1. Huff RA, Corcoran JJ, Anderson JK, Abou-Donia MB: Chlorpyrifos oxon binds directly to muscarinic receptors and inhibits cAMP accumulation in rat striatum. J Pharmacol Exp Ther. 1994 Apr;269(1):329-35. [7513360 ]
  2. Das PC, Cao Y, Rose RL, Cherrington N, Hodgson E: Enzyme induction and cytotoxicity in human hepatocytes by chlorpyrifos and N,N-diethyl-m-toluamide (DEET). Drug Metabol Drug Interact. 2008;23(3-4):237-60. [19326769 ]
  3. Richardson RJ, Moore TB, Kayyali US, Fowke JH, Randall JC: Inhibition of hen brain acetylcholinesterase and neurotoxic esterase by chlorpyrifos in vivo and kinetics of inhibition by chlorpyrifos oxon in vitro: application to assessment of neuropathic risk. Fundam Appl Toxicol. 1993 Apr;20(3):273-9. [7684990 ]
  4. Quistad GB, Sparks SE, Casida JE: Fatty acid amide hydrolase inhibition by neurotoxic organophosphorus pesticides. Toxicol Appl Pharmacol. 2001 May 15;173(1):48-55. [11350214 ]
  5. Lewis RJ (1996). Sax's Dangerous Properties of Industrial Materials. 9th ed. Volumes 1-3. New York, NY: Van Nostrand Reinhold.
  6. National Institute for Occupational Safety and Health (2002). RTECS: Registry of Toxic Effects of Chemical Substances.
  7. FAO/WHO (1999). Pesticide Residues in Food, Toxicological Evaluations, Chlorpyrifos.
  8. ATSDR - Agency for Toxic Substances and Disease Registry (2001). Minimal Risk Levels (MRLs) for Hazardous Substances. U.S. Public Health Service in collaboration with U.S. Environmental Protection Agency (EPA). [Link]
  9. ATSDR - Agency for Toxic Substances and Disease Registry (1997). Toxicological profile for chlorpyrifos. U.S. Public Health Service in collaboration with U.S. Environmental Protection Agency (EPA). [Link]
  10. International Agency for Research on Cancer (2014). IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. [Link]
Gene Regulation
Up-Regulated Genes
GeneGene SymbolGene IDInteractionChromosomeDetails
Down-Regulated Genes
GeneGene SymbolGene IDInteractionChromosomeDetails

Targets

Target Details
1. Aryl hydrocarbon receptor
General Function:
Transcription regulatory region dna binding
Specific Function:
Ligand-activated transcriptional activator. Binds to the XRE promoter region of genes it activates. Activates the expression of multiple phase I and II xenobiotic chemical metabolizing enzyme genes (such as the CYP1A1 gene). Mediates biochemical and toxic effects of halogenated aromatic hydrocarbons. Involved in cell-cycle regulation. Likely to play an important role in the development and maturation of many tissues. Regulates the circadian clock by inhibiting the basal and circadian expression of the core circadian component PER1. Inhibits PER1 by repressing the CLOCK-ARNTL/BMAL1 heterodimer mediated transcriptional activation of PER1.
Gene Name:
AHR
Uniprot ID:
P35869
Molecular Weight:
96146.705 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC502.23 uMTox21_AhRTox21/NCGC
References
  1. Long M, Laier P, Vinggaard AM, Andersen HR, Lynggaard J, Bonefeld-Jorgensen EC: Effects of currently used pesticides in the AhR-CALUX assay: comparison between the human TV101L and the rat H4IIE cell line. Toxicology. 2003 Dec 15;194(1-2):77-93. [14636698 ]
  2. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
Target Details
2. Nuclear receptor subfamily 1 group I member 2
General Function:
Zinc ion binding
Specific Function:
Nuclear receptor that binds and is activated by variety of endogenous and xenobiotic compounds. Transcription factor that activates the transcription of multiple genes involved in the metabolism and secretion of potentially harmful xenobiotics, drugs and endogenous compounds. Activated by the antibiotic rifampicin and various plant metabolites, such as hyperforin, guggulipid, colupulone, and isoflavones. Response to specific ligands is species-specific. Activated by naturally occurring steroids, such as pregnenolone and progesterone. Binds to a response element in the promoters of the CYP3A4 and ABCB1/MDR1 genes.
Gene Name:
NR1I2
Uniprot ID:
O75469
Molecular Weight:
49761.245 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC507.76 uMATG_PXRE_CISAttagene
References
  1. Kretschmer XC, Baldwin WS: CAR and PXR: xenosensors of endocrine disrupters? Chem Biol Interact. 2005 Aug 15;155(3):111-28. [16054614 ]
  2. Kojima H, Sata F, Takeuchi S, Sueyoshi T, Nagai T: Comparative study of human and mouse pregnane X receptor agonistic activity in 200 pesticides using in vitro reporter gene assays. Toxicology. 2011 Feb 27;280(3):77-87. doi: 10.1016/j.tox.2010.11.008. Epub 2010 Nov 27. [21115097 ]
  3. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
Target Details
3. Estrogen receptor
General Function:
Zinc ion binding
Specific Function:
Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA-binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE-independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF-kappa-B in a cell-type specific manner. Decreases NF-kappa-B DNA-binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full length receptor. Essential for MTA1-mediated transcriptional regulation of BRCA1 and BCAS3. Isoform 3 can bind to ERE and inhibit isoform 1.
Gene Name:
ESR1
Uniprot ID:
P03372
Molecular Weight:
66215.45 Da
References
  1. Taccone-Gallucci M, Manca-di-Villahermosa S, Battistini L, Stuffler RG, Tedesco M, Maccarrone M: N-3 PUFAs reduce oxidative stress in ESRD patients on maintenance HD by inhibiting 5-lipoxygenase activity. Kidney Int. 2006 Apr;69(8):1450-4. [16531984 ]
  2. Luft S, Milki E, Glustrom E, Ampiah-Bonney R, O'Hara P. Binding of Organochloride and Pyrethroid Pesticides To Estrogen Receptors α and β: A Fluorescence Polarization Assay. Biophysical Journal 2009;96(3):444a.
Target Details
4. Estrogen receptor beta
General Function:
Zinc ion binding
Specific Function:
Nuclear hormone receptor. Binds estrogens with an affinity similar to that of ESR1, and activates expression of reporter genes containing estrogen response elements (ERE) in an estrogen-dependent manner (PubMed:20074560). Isoform beta-cx lacks ligand binding ability and has no or only very low ere binding activity resulting in the loss of ligand-dependent transactivation ability. DNA-binding by ESR1 and ESR2 is rapidly lost at 37 degrees Celsius in the absence of ligand while in the presence of 17 beta-estradiol and 4-hydroxy-tamoxifen loss in DNA-binding at elevated temperature is more gradual.
Gene Name:
ESR2
Uniprot ID:
Q92731
Molecular Weight:
59215.765 Da
References
  1. Taccone-Gallucci M, Manca-di-Villahermosa S, Battistini L, Stuffler RG, Tedesco M, Maccarrone M: N-3 PUFAs reduce oxidative stress in ESRD patients on maintenance HD by inhibiting 5-lipoxygenase activity. Kidney Int. 2006 Apr;69(8):1450-4. [16531984 ]
  2. Luft S, Milki E, Glustrom E, Ampiah-Bonney R, O'Hara P. Binding of Organochloride and Pyrethroid Pesticides To Estrogen Receptors α and β: A Fluorescence Polarization Assay. Biophysical Journal 2009;96(3):444a.
Target Details
5. Acetylcholinesterase
General Function:
Serine hydrolase activity
Specific Function:
Terminates signal transduction at the neuromuscular junction by rapid hydrolysis of the acetylcholine released into the synaptic cleft. Role in neuronal apoptosis.
Gene Name:
ACHE
Uniprot ID:
P22303
Molecular Weight:
67795.525 Da
References
  1. ATSDR - Agency for Toxic Substances and Disease Registry (1997). Toxicological profile for chlorpyrifos. U.S. Public Health Service in collaboration with U.S. Environmental Protection Agency (EPA). [Link]
Target Details
6. Calcium-transporting ATPase type 2C member 1
General Function:
Signal transducer activity
Specific Function:
This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of the calcium.
Gene Name:
ATP2C1
Uniprot ID:
P98194
Molecular Weight:
100576.42 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
7. Calcium-transporting ATPase type 2C member 2
General Function:
Metal ion binding
Specific Function:
This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium.
Gene Name:
ATP2C2
Uniprot ID:
O75185
Molecular Weight:
103186.475 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
8. Cannabinoid receptor 1
General Function:
Drug binding
Specific Function:
Involved in cannabinoid-induced CNS effects. Acts by inhibiting adenylate cyclase. Could be a receptor for anandamide. Inhibits L-type Ca(2+) channel current. Isoform 2 and isoform 3 have altered ligand binding.
Gene Name:
CNR1
Uniprot ID:
P21554
Molecular Weight:
52857.365 Da
References
  1. Quistad GB, Nomura DK, Sparks SE, Segall Y, Casida JE: Cannabinoid CB1 receptor as a target for chlorpyrifos oxon and other organophosphorus pesticides. Toxicol Lett. 2002 Sep 5;135(1-2):89-93. [12243867 ]
Target Details
9. Cytochrome P450 3A4
General Function:
Vitamin d3 25-hydroxylase activity
Specific Function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide (PubMed:11159812). Catalyzes 4-beta-hydroxylation of cholesterol. May catalyze 25-hydroxylation of cholesterol in vitro (PubMed:21576599).
Gene Name:
CYP3A4
Uniprot ID:
P08684
Molecular Weight:
57342.67 Da
References
  1. Usmani KA, Hodgson E, Rose RL: In vitro metabolism of carbofuran by human, mouse, and rat cytochrome P450 and interactions with chlorpyrifos, testosterone, and estradiol. Chem Biol Interact. 2004 Dec 7;150(3):221-32. [15560889 ]
Target Details
10. Fatty-acid amide hydrolase 1
General Function:
Fatty acid amide hydrolase activity
Specific Function:
Degrades bioactive fatty acid amides like oleamide, the endogenous cannabinoid, anandamide and myristic amide to their corresponding acids, thereby serving to terminate the signaling functions of these molecules. Hydrolyzes polyunsaturated substrate anandamide preferentially as compared to monounsaturated substrates.
Gene Name:
FAAH
Uniprot ID:
O00519
Molecular Weight:
63065.28 Da
References
  1. Quistad GB, Sparks SE, Casida JE: Fatty acid amide hydrolase inhibition by neurotoxic organophosphorus pesticides. Toxicol Appl Pharmacol. 2001 May 15;173(1):48-55. [11350214 ]
Target Details
11. Fatty-acid amide hydrolase 2
General Function:
Hydrolase activity
Specific Function:
Degrades bioactive fatty acid amides like oleamide, the endogenous cannabinoid, anandamide and myristic amide to their corresponding acids, thereby serving to terminate the signaling functions of these molecules. Hydrolyzes monounsaturated substrate anandamide preferentially as compared to polyunsaturated substrates.
Gene Name:
FAAH2
Uniprot ID:
Q6GMR7
Molecular Weight:
58303.115 Da
References
  1. Quistad GB, Sparks SE, Casida JE: Fatty acid amide hydrolase inhibition by neurotoxic organophosphorus pesticides. Toxicol Appl Pharmacol. 2001 May 15;173(1):48-55. [11350214 ]
Target Details
12. Gamma-aminobutyric acid receptor subunit alpha-1
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
Gene Name:
GABRA1
Uniprot ID:
P14867
Molecular Weight:
51801.395 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
13. Gamma-aminobutyric acid receptor subunit alpha-2
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRA2
Uniprot ID:
P47869
Molecular Weight:
51325.85 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
14. Gamma-aminobutyric acid receptor subunit alpha-3
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRA3
Uniprot ID:
P34903
Molecular Weight:
55164.055 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
15. Gamma-aminobutyric acid receptor subunit alpha-4
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRA4
Uniprot ID:
P48169
Molecular Weight:
61622.645 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
16. Gamma-aminobutyric acid receptor subunit alpha-5
General Function:
Transporter activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRA5
Uniprot ID:
P31644
Molecular Weight:
52145.645 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
17. Gamma-aminobutyric acid receptor subunit alpha-6
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRA6
Uniprot ID:
Q16445
Molecular Weight:
51023.69 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
18. Gamma-aminobutyric acid receptor subunit beta-1
General Function:
Ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
Gene Name:
GABRB1
Uniprot ID:
P18505
Molecular Weight:
54234.085 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
19. Gamma-aminobutyric acid receptor subunit beta-2
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
Gene Name:
GABRB2
Uniprot ID:
P47870
Molecular Weight:
59149.895 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
20. Gamma-aminobutyric acid receptor subunit beta-3
General Function:
Gaba-gated chloride ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
Gene Name:
GABRB3
Uniprot ID:
P28472
Molecular Weight:
54115.04 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
21. Gamma-aminobutyric acid receptor subunit delta
General Function:
Gaba-a receptor activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRD
Uniprot ID:
O14764
Molecular Weight:
50707.835 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
22. Gamma-aminobutyric acid receptor subunit epsilon
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRE
Uniprot ID:
P78334
Molecular Weight:
57971.175 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
23. Gamma-aminobutyric acid receptor subunit gamma-1
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRG1
Uniprot ID:
Q8N1C3
Molecular Weight:
53594.49 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
24. Gamma-aminobutyric acid receptor subunit gamma-2
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
Gene Name:
GABRG2
Uniprot ID:
P18507
Molecular Weight:
54161.78 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
25. Gamma-aminobutyric acid receptor subunit gamma-3
General Function:
Inhibitory extracellular ligand-gated ion channel activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRG3
Uniprot ID:
Q99928
Molecular Weight:
54288.16 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
26. Gamma-aminobutyric acid receptor subunit pi
General Function:
Gaba-a receptor activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. In the uterus, the function of the receptor appears to be related to tissue contractility. The binding of this pI subunit with other GABA(A) receptor subunits alters the sensitivity of recombinant receptors to modulatory agents such as pregnanolone.
Gene Name:
GABRP
Uniprot ID:
O00591
Molecular Weight:
50639.735 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
27. Gamma-aminobutyric acid receptor subunit rho-1
General Function:
Gaba-a receptor activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. Rho-1 GABA receptor could play a role in retinal neurotransmission.
Gene Name:
GABRR1
Uniprot ID:
P24046
Molecular Weight:
55882.91 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
28. Gamma-aminobutyric acid receptor subunit rho-2
General Function:
Gaba-a receptor activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. Rho-2 GABA receptor could play a role in retinal neurotransmission.
Gene Name:
GABRR2
Uniprot ID:
P28476
Molecular Weight:
54150.41 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
29. Gamma-aminobutyric acid receptor subunit rho-3
General Function:
Gaba-a receptor activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRR3
Uniprot ID:
A8MPY1
Molecular Weight:
54271.1 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
30. Gamma-aminobutyric acid receptor subunit theta
General Function:
Transmembrane signaling receptor activity
Specific Function:
GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Gene Name:
GABRQ
Uniprot ID:
Q9UN88
Molecular Weight:
72020.875 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
31. Multidrug resistance protein 1
General Function:
Xenobiotic-transporting atpase activity
Specific Function:
Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells.
Gene Name:
ABCB1
Uniprot ID:
P08183
Molecular Weight:
141477.255 Da
References
  1. Bain LJ, LeBlanc GA: Interaction of structurally diverse pesticides with the human MDR1 gene product P-glycoprotein. Toxicol Appl Pharmacol. 1996 Nov;141(1):288-98. [8917702 ]
Target Details
32. Muscarinic acetylcholine receptor M1
General Function:
Phosphatidylinositol phospholipase c activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is Pi turnover.
Gene Name:
CHRM1
Uniprot ID:
P11229
Molecular Weight:
51420.375 Da
References
  1. Huff RA, Corcoran JJ, Anderson JK, Abou-Donia MB: Chlorpyrifos oxon binds directly to muscarinic receptors and inhibits cAMP accumulation in rat striatum. J Pharmacol Exp Ther. 1994 Apr;269(1):329-35. [7513360 ]
Target Details
33. Muscarinic acetylcholine receptor M2
General Function:
G-protein coupled acetylcholine receptor activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is adenylate cyclase inhibition. Signaling promotes phospholipase C activity, leading to the release of inositol trisphosphate (IP3); this then triggers calcium ion release into the cytosol.
Gene Name:
CHRM2
Uniprot ID:
P08172
Molecular Weight:
51714.605 Da
References
  1. Huff RA, Corcoran JJ, Anderson JK, Abou-Donia MB: Chlorpyrifos oxon binds directly to muscarinic receptors and inhibits cAMP accumulation in rat striatum. J Pharmacol Exp Ther. 1994 Apr;269(1):329-35. [7513360 ]
Target Details
34. Muscarinic acetylcholine receptor M3
General Function:
Receptor activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is Pi turnover.
Gene Name:
CHRM3
Uniprot ID:
P20309
Molecular Weight:
66127.445 Da
References
  1. Huff RA, Corcoran JJ, Anderson JK, Abou-Donia MB: Chlorpyrifos oxon binds directly to muscarinic receptors and inhibits cAMP accumulation in rat striatum. J Pharmacol Exp Ther. 1994 Apr;269(1):329-35. [7513360 ]
Target Details
35. Muscarinic acetylcholine receptor M4
General Function:
Guanyl-nucleotide exchange factor activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is inhibition of adenylate cyclase.
Gene Name:
CHRM4
Uniprot ID:
P08173
Molecular Weight:
53048.65 Da
References
  1. Huff RA, Corcoran JJ, Anderson JK, Abou-Donia MB: Chlorpyrifos oxon binds directly to muscarinic receptors and inhibits cAMP accumulation in rat striatum. J Pharmacol Exp Ther. 1994 Apr;269(1):329-35. [7513360 ]
Target Details
36. Muscarinic acetylcholine receptor M5
General Function:
Phosphatidylinositol phospholipase c activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is Pi turnover.
Gene Name:
CHRM5
Uniprot ID:
P08912
Molecular Weight:
60073.205 Da
References
  1. Huff RA, Corcoran JJ, Anderson JK, Abou-Donia MB: Chlorpyrifos oxon binds directly to muscarinic receptors and inhibits cAMP accumulation in rat striatum. J Pharmacol Exp Ther. 1994 Apr;269(1):329-35. [7513360 ]
Target Details
37. Neuropathy target esterase
General Function:
Lysophospholipase activity
Specific Function:
Phospholipase B that deacylates intracellular phosphatidylcholine (PtdCho), generating glycerophosphocholine (GroPtdCho). This deacylation occurs at both sn-2 and sn-1 positions of PtdCho. Its specific chemical modification by certain organophosphorus (OP) compounds leads to distal axonopathy.
Gene Name:
PNPLA6
Uniprot ID:
Q8IY17
Molecular Weight:
149993.285 Da
References
  1. Richardson RJ, Moore TB, Kayyali US, Fowke JH, Randall JC: Inhibition of hen brain acetylcholinesterase and neurotoxic esterase by chlorpyrifos in vivo and kinetics of inhibition by chlorpyrifos oxon in vitro: application to assessment of neuropathic risk. Fundam Appl Toxicol. 1993 Apr;20(3):273-9. [7684990 ]
Target Details
38. Plasma membrane calcium-transporting ATPase 1
General Function:
Pdz domain binding
Specific Function:
This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell.
Gene Name:
ATP2B1
Uniprot ID:
P20020
Molecular Weight:
138754.045 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
39. Plasma membrane calcium-transporting ATPase 2
General Function:
Protein c-terminus binding
Specific Function:
This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell.
Gene Name:
ATP2B2
Uniprot ID:
Q01814
Molecular Weight:
136875.18 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
40. Plasma membrane calcium-transporting ATPase 3
General Function:
Pdz domain binding
Specific Function:
This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell.
Gene Name:
ATP2B3
Uniprot ID:
Q16720
Molecular Weight:
134196.025 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
41. Plasma membrane calcium-transporting ATPase 4
General Function:
Scaffold protein binding
Specific Function:
Calcium/calmodulin-regulated and magnesium-dependent enzyme that catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell (PubMed:8530416). By regulating sperm cell calcium homeostasis, may play a role in sperm motility (By similarity).
Gene Name:
ATP2B4
Uniprot ID:
P23634
Molecular Weight:
137919.03 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
42. Sarcoplasmic/endoplasmic reticulum calcium ATPase 1
General Function:
Protein homodimerization activity
Specific Function:
Key regulator of striated muscle performance by acting as the major Ca(2+) ATPase responsible for the reuptake of cytosolic Ca(2+) into the sarcoplasmic reticulum. Catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction.
Gene Name:
ATP2A1
Uniprot ID:
O14983
Molecular Weight:
110251.36 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
43. Sarcoplasmic/endoplasmic reticulum calcium ATPase 2
General Function:
S100 protein binding
Specific Function:
This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Isoform 2 is involved in the regulation of the contraction/relaxation cycle.
Gene Name:
ATP2A2
Uniprot ID:
P16615
Molecular Weight:
114755.765 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
44. Sarcoplasmic/endoplasmic reticulum calcium ATPase 3
General Function:
Metal ion binding
Specific Function:
This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium. Transports calcium ions from the cytosol into the sarcoplasmic/endoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction.
Gene Name:
ATP2A3
Uniprot ID:
Q93084
Molecular Weight:
113976.23 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
45. Serum albumin
General Function:
Toxic substance binding
Specific Function:
Serum albumin, the main protein of plasma, has a good binding capacity for water, Ca(2+), Na(+), K(+), fatty acids, hormones, bilirubin and drugs. Its main function is the regulation of the colloidal osmotic pressure of blood. Major zinc transporter in plasma, typically binds about 80% of all plasma zinc.
Gene Name:
ALB
Uniprot ID:
P02768
Molecular Weight:
69365.94 Da
References
  1. Li B, Schopfer LM, Hinrichs SH, Masson P, Lockridge O: Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry assay for organophosphorus toxicants bound to human albumin at Tyr411. Anal Biochem. 2007 Feb 15;361(2):263-72. Epub 2006 Dec 4. [17188226 ]
Target Details
46. Sodium/potassium-transporting ATPase subunit alpha-1
General Function:
Steroid hormone binding
Specific Function:
This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients.
Gene Name:
ATP1A1
Uniprot ID:
P05023
Molecular Weight:
112895.01 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
47. Sodium/potassium-transporting ATPase subunit alpha-2
General Function:
Steroid hormone binding
Specific Function:
This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium, providing the energy for active transport of various nutrients.
Gene Name:
ATP1A2
Uniprot ID:
P50993
Molecular Weight:
112264.385 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
48. Sodium/potassium-transporting ATPase subunit alpha-3
General Function:
Steroid hormone binding
Specific Function:
This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients.
Gene Name:
ATP1A3
Uniprot ID:
P13637
Molecular Weight:
111747.51 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
49. Sodium/potassium-transporting ATPase subunit alpha-4
General Function:
Sodium:potassium-exchanging atpase activity
Specific Function:
This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients. Plays a role in sperm motility.
Gene Name:
ATP1A4
Uniprot ID:
Q13733
Molecular Weight:
114165.44 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
50. Sodium/potassium-transporting ATPase subunit beta-1
General Function:
Sodium:potassium-exchanging atpase activity
Specific Function:
This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The beta subunit regulates, through assembly of alpha/beta heterodimers, the number of sodium pumps transported to the plasma membrane.Involved in cell adhesion and establishing epithelial cell polarity.
Gene Name:
ATP1B1
Uniprot ID:
P05026
Molecular Weight:
35061.07 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
51. Sodium/potassium-transporting ATPase subunit beta-2
General Function:
Sodium:potassium-exchanging atpase activity
Specific Function:
This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The exact function of the beta-2 subunit is not known.Mediates cell adhesion of neurons and astrocytes, and promotes neurite outgrowth.
Gene Name:
ATP1B2
Uniprot ID:
P14415
Molecular Weight:
33366.925 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
52. Sodium/potassium-transporting ATPase subunit beta-3
General Function:
Sodium:potassium-exchanging atpase activity
Specific Function:
This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The exact function of the beta-3 subunit is not known.
Gene Name:
ATP1B3
Uniprot ID:
P54709
Molecular Weight:
31512.34 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
53. Sodium/potassium-transporting ATPase subunit gamma
General Function:
Transporter activity
Specific Function:
May be involved in forming the receptor site for cardiac glycoside binding or may modulate the transport function of the sodium ATPase.
Gene Name:
FXYD2
Uniprot ID:
P54710
Molecular Weight:
7283.265 Da
References
  1. Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
Target Details
54. Peroxisome proliferator-activated receptor delta
General Function:
Zinc ion binding
Specific Function:
Ligand-activated transcription factor. Receptor that binds peroxisome proliferators such as hypolipidemic drugs and fatty acids. Has a preference for poly-unsaturated fatty acids, such as gamma-linoleic acid and eicosapentanoic acid. Once activated by a ligand, the receptor binds to promoter elements of target genes. Regulates the peroxisomal beta-oxidation pathway of fatty acids. Functions as transcription activator for the acyl-CoA oxidase gene. Decreases expression of NPC1L1 once activated by a ligand.
Gene Name:
PPARD
Uniprot ID:
Q03181
Molecular Weight:
49902.99 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC500.49 uMATG_PPARd_TRANSAttagene
References
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
Target Details
55. Nuclear receptor subfamily 1 group I member 3
General Function:
Zinc ion binding
Specific Function:
Binds and transactivates the retinoic acid response elements that control expression of the retinoic acid receptor beta 2 and alcohol dehydrogenase 3 genes. Transactivates both the phenobarbital responsive element module of the human CYP2B6 gene and the CYP3A4 xenobiotic response element.
Gene Name:
NR1I3
Uniprot ID:
Q14994
Molecular Weight:
39942.145 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
AC504.01 uMATG_CAR_TRANSAttagene
References
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]