Chlorpyrifos oxon (T3D4485)
| Record Information | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Version | 2.0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Creation Date | 2014-08-29 06:51:39 UTC | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Update Date | 2014-12-24 20:26:51 UTC | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accession Number | T3D4485 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Identification | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Common Name | Chlorpyrifos oxon | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class | Small Molecule | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Description | Chlorpyrifos oxon examines the risk of acute toxicity in soil microbes by comparing data on environmental concentrations of these pesticides to toxic concentrations. In animals, chlorpyrifos transforms to chlorpyrifos-oxon, which is about 3000 times as potent against the nervous system as chlorpyrifos itself. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Compound Type |
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| Chemical Structure |  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Synonyms |
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| Chemical Formula | C9H11Cl3NO4P | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Molecular Mass | 334.521 g/mol | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Monoisotopic Mass | 332.949 g/mol | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| CAS Registry Number | 5598-15-2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| IUPAC Name | diethyl 3,5,6-trichloropyridin-2-yl phosphate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Traditional Name | chloropyrifos oxon | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| SMILES | CCOP(=O)(OCC)OC1=C(Cl)C=C(Cl)C(Cl)=N1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| InChI Identifier | InChI=1S/C9H11Cl3NO4P/c1-3-15-18(14,16-4-2)17-9-7(11)5-6(10)8(12)13-9/h5H,3-4H2,1-2H3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| InChI Key | InChIKey=OTMOUPHCTWPNSL-UHFFFAOYSA-N | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Chemical Taxonomy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Description | belongs to the class of organic compounds known as polyhalopyridines. These are organic compounds containing a pyridine ring substituted at two or more positions by a halogen atom. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Kingdom | Organic compounds | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Super Class | Organoheterocyclic compounds | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class | Pyridines and derivatives | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sub Class | Halopyridines | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Direct Parent | Polyhalopyridines | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Alternative Parents | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Substituents |
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| Molecular Framework | Aromatic heteromonocyclic compounds | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| External Descriptors | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Biological Properties | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Status | Detected and Not Quantified | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Origin | Exogenous | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cellular Locations |
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| Biofluid Locations | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Tissue Locations | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Pathways |
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| Applications | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Biological Roles | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Chemical Roles | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Physical Properties | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| State | Solid | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Appearance | White powder. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Experimental Properties |
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| Predicted Properties |
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| Spectra | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Spectra |
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| Toxicity Profile | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Route of Exposure | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Mechanism of Toxicity | Chlorpyrifos oxon 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Metabolism | Metabolism 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 Values | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Lethal Dose | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Carcinogenicity (IARC Classification) | No indication of carcinogenicity to humans (not listed by IARC). | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Uses/Sources | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Minimum Risk Level | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Health Effects | Acute 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Symptoms | Symptoms of low dose exposure include excessive salivation and eye-watering. Acute dose symptoms include 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. Hypertension, hypoglycemia, anxiety, headache, tremor and ataxia may also result. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Treatment | If 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 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| External Links | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| DrugBank ID | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| HMDB ID | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| PubChem Compound ID | 21804 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ChEMBL ID | CHEMBL444970 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ChemSpider ID | 20494 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| KEGG ID | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| UniProt ID | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| OMIM ID | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ChEBI ID | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| BioCyc ID | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| CTD ID | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Stitch ID | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| PDB ID | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ACToR ID | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia Link | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| References | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Synthesis Reference | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| MSDS | T3D4485.pdf | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| General References |
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| Gene Regulation | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Up-Regulated Genes | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Down-Regulated Genes | Not Available | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Targets
- General Function:
- Identical protein binding
- Specific Function:
- Esterase with broad substrate specificity. Contributes to the inactivation of the neurotransmitter acetylcholine. Can degrade neurotoxic organophosphate esters.
- Gene Name:
- BCHE
- Uniprot ID:
- P06276
- Molecular Weight:
- 68417.575 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 0.01 uM | NVS_ENZ_hES | Novascreen |
| AC50 | 0.01 uM | NVS_ENZ_hES | Novascreen |
References
- 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 ]
- 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
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 0.12 uM | NVS_ENZ_hAChE | Novascreen |
| AC50 | 0.15 uM | NVS_ENZ_hAChE | Novascreen |
References
- 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 ]
- General Function:
- Zinc ion binding
- Specific Function:
- Ligand-activated transcription factor. Receptor for bile acids such as chenodeoxycholic acid, lithocholic acid and deoxycholic acid. Represses the transcription of the cholesterol 7-alpha-hydroxylase gene (CYP7A1) through the induction of NR0B2 or FGF19 expression, via two distinct mechanisms. Activates the intestinal bile acid-binding protein (IBABP). Activates the transcription of bile salt export pump ABCB11 by directly recruiting histone methyltransferase CARM1 to this locus.
- Gene Name:
- NR1H4
- Uniprot ID:
- Q96RI1
- Molecular Weight:
- 55913.915 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 0.29 uM | OT_SRC1_SRC1FXR_1440 | Odyssey Thera |
References
- 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 ]
- General Function:
- Steroid 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 oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,4-cineole 2-exo-monooxygenase.
- Gene Name:
- CYP2B6
- Uniprot ID:
- P20813
- Molecular Weight:
- 56277.81 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 6.75 uM | CLZD_CYP2B6_6 | CellzDirect |
| AC50 | 0.30 uM | CLZD_CYP2B6_24 | CellzDirect |
| AC50 | 4.96 uM | CLZD_CYP2B6_48 | CellzDirect |
References
- 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 ]
- General Function:
- Platelet-derived growth factor binding
- Specific Function:
- Collagen type III occurs in most soft connective tissues along with type I collagen. Involved in regulation of cortical development. Is the major ligand of GPR56 in the developing brain and binding to GPR56 inhibits neuronal migration and activates the RhoA pathway by coupling GPR56 to GNA13 and possibly GNA12.
- Gene Name:
- COL3A1
- Uniprot ID:
- P02461
- Molecular Weight:
- 138564.005 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 1.48 uM | BSK_hDFCGF_CollagenIII_down | BioSeek |
References
- 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 ]
- General Function:
- Peptide antigen binding
- Specific Function:
- Binds peptides derived from antigens that access the endocytic route of antigen presenting cells (APC) and presents them on the cell surface for recognition by the CD4 T-cells. The peptide binding cleft accommodates peptides of 10-30 residues. The peptides presented by MHC class II molecules are generated mostly by degradation of proteins that access the endocytic route, where they are processed by lysosomal proteases and other hydrolases. Exogenous antigens that have been endocytosed by the APC are thus readily available for presentation via MHC II molecules, and for this reason this antigen presentation pathway is usually referred to as exogenous. As membrane proteins on their way to degradation in lysosomes as part of their normal turn-over are also contained in the endosomal/lysosomal compartments, exogenous antigens must compete with those derived from endogenous components. Autophagy is also a source of endogenous peptides, autophagosomes constitutively fuse with MHC class II loading compartments. In addition to APCs, other cells of the gastrointestinal tract, such as epithelial cells, express MHC class II molecules and CD74 and act as APCs, which is an unusual trait of the GI tract. To produce a MHC class II molecule that presents an antigen, three MHC class II molecules (heterodimers of an alpha and a beta chain) associate with a CD74 trimer in the ER to form a heterononamer. Soon after the entry of this complex into the endosomal/lysosomal system where antigen processing occurs, CD74 undergoes a sequential degradation by various proteases, including CTSS and CTSL, leaving a small fragment termed CLIP (class-II-associated invariant chain peptide). The removal of CLIP is facilitated by HLA-DM via direct binding to the alpha-beta-CLIP complex so that CLIP is released. HLA-DM stabilizes MHC class II molecules until primary high affinity antigenic peptides are bound. The MHC II molecule bound to a peptide is then transported to the cell membrane surface. In B-cells, the interaction between HLA-DM and MHC class II molecules is regulated by HLA-DO. Primary dendritic cells (DCs) also to express HLA-DO. Lysosomal microenvironment has been implicated in the regulation of antigen loading into MHC II molecules, increased acidification produces increased proteolysis and efficient peptide loading.
- Gene Name:
- HLA-DRA
- Uniprot ID:
- P01903
- Molecular Weight:
- 28606.685 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 1.48 uM | BSK_BE3C_hLADR_down | BioSeek |
References
- 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 ]
- General Function:
- Protein homodimerization activity
- Specific Function:
- Cytokine that plays an essential role in the regulation of survival, proliferation and differentiation of hematopoietic precursor cells, especially mononuclear phagocytes, such as macrophages and monocytes. Promotes the release of proinflammatory chemokines, and thereby plays an important role in innate immunity and in inflammatory processes. Plays an important role in the regulation of osteoclast proliferation and differentiation, the regulation of bone resorption, and is required for normal bone development. Required for normal male and female fertility. Promotes reorganization of the actin cytoskeleton, regulates formation of membrane ruffles, cell adhesion and cell migration. Plays a role in lipoprotein clearance.
- Gene Name:
- CSF1
- Uniprot ID:
- P09603
- Molecular Weight:
- 60178.885 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 1.48 uM | BSK_hDFCGF_MCSF_down | BioSeek |
References
- 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 ]
- General Function:
- Zinc ion binding
- Specific Function:
- May play an essential role in local proteolysis of the extracellular matrix and in leukocyte migration. Could play a role in bone osteoclastic resorption. Cleaves KiSS1 at a Gly-|-Leu bond. Cleaves type IV and type V collagen into large C-terminal three quarter fragments and shorter N-terminal one quarter fragments. Degrades fibronectin but not laminin or Pz-peptide.
- Gene Name:
- MMP9
- Uniprot ID:
- P14780
- Molecular Weight:
- 78457.51 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 1.48 uM | BSK_KF3CT_MMP9_down | BioSeek |
References
- 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 ]
- General Function:
- Protease binding
- Specific Function:
- Metalloproteinase inhibitor that functions by forming one to one complexes with target metalloproteinases, such as collagenases, and irreversibly inactivates them by binding to their catalytic zinc cofactor. Acts on MMP1, MMP2, MMP3, MMP7, MMP8, MMP9, MMP10, MMP11, MMP12, MMP13 and MMP16. Does not act on MMP14. Also functions as a growth factor that regulates cell differentiation, migration and cell death and activates cellular signaling cascades via CD63 and ITGB1. Plays a role in integrin signaling. Mediates erythropoiesis in vitro; but, unlike IL3, it is species-specific, stimulating the growth and differentiation of only human and murine erythroid progenitors.
- Gene Name:
- TIMP1
- Uniprot ID:
- P01033
- Molecular Weight:
- 23170.64 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 1.48 uM | BSK_hDFCGF_TIMP1_up | BioSeek |
References
- 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 ]
- General Function:
- Serine-type endopeptidase inhibitor activity
- Specific Function:
- Serine protease inhibitor. This inhibitor acts as 'bait' for tissue plasminogen activator, urokinase, protein C and matriptase-3/TMPRSS7. Its rapid interaction with PLAT may function as a major control point in the regulation of fibrinolysis.
- Gene Name:
- SERPINE1
- Uniprot ID:
- P05121
- Molecular Weight:
- 45059.695 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 1.48 uM | BSK_hDFCGF_PAI1_down | BioSeek |
References
- 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 ]
- General Function:
- Zinc ion binding
- Specific Function:
- Nuclear receptor. Binds preferentially to double-stranded oligonucleotide direct repeats having the consensus half-site sequence 5'-AGGTCA-3' and 4-nt spacing (DR-4). Regulates cholesterol uptake through MYLIP-dependent ubiquitination of LDLR, VLDLR and LRP8; DLDLR and LRP8. Interplays functionally with RORA for the regulation of genes involved in liver metabolism (By similarity). Exhibits a ligand-dependent transcriptional activation activity (PubMed:25661920).
- Gene Name:
- NR1H2
- Uniprot ID:
- P55055
- Molecular Weight:
- 50973.375 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 1.86 uM | NCGC_LXR_Agonist | NCGC |
References
- 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 ]
- 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
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 1.99 uM | Tox21_ERa_BLA_Antagonist_ratio | Tox21/NCGC |
References
- 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 ]
- General Function:
- Steroid hydroxylase activity
- Specific Function:
- Responsible for the metabolism of a number of therapeutic agents such as the anticonvulsant drug S-mephenytoin, omeprazole, proguanil, certain barbiturates, diazepam, propranolol, citalopram and imipramine.
- Gene Name:
- CYP2C19
- Uniprot ID:
- P33261
- Molecular Weight:
- 55930.545 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 6.30 uM | NVS_ADME_hCYP2C19 | Novascreen |
| AC50 | 2.88 uM | NVS_ADME_hCYP2C19 | Novascreen |
References
- 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 ]
- General Function:
- Oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
- 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 oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Most active in catalyzing 2-hydroxylation. Caffeine is metabolized primarily by cytochrome CYP1A2 in the liver through an initial N3-demethylation. Also acts in the metabolism of aflatoxin B1 and acetaminophen. Participates in the bioactivation of carcinogenic aromatic and heterocyclic amines. Catalizes the N-hydroxylation of heterocyclic amines and the O-deethylation of phenacetin.
- Gene Name:
- CYP1A2
- Uniprot ID:
- P05177
- Molecular Weight:
- 58293.76 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 6.51 uM | CLZD_CYP1A2_6 | CellzDirect |
| AC50 | 6.58 uM | CLZD_CYP1A2_24 | CellzDirect |
| AC50 | 7.42 uM | CLZD_CYP1A2_48 | CellzDirect |
| AC50 | 4.50 uM | NVS_ADME_hCYP1A2 | Novascreen |
| AC50 | 3.10 uM | NVS_ADME_hCYP1A2 | Novascreen |
References
- 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 ]
- General Function:
- Cholesterol binding
- Specific Function:
- Can bind protoporphyrin IX and may play a role in the transport of porphyrins and heme (By similarity). Promotes the transport of cholesterol across mitochondrial membranes and may play a role in lipid metabolism (PubMed:24814875), but its precise physiological role is controversial. It is apparently not required for steroid hormone biosynthesis. Was initially identified as peripheral-type benzodiazepine receptor; can also bind isoquinoline carboxamides (PubMed:1847678).
- Gene Name:
- TSPO
- Uniprot ID:
- P30536
- Molecular Weight:
- 18827.81 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 4.70 uM | NVS_MP_hPBR | Novascreen |
| AC50 | 3.89 uM | NVS_MP_hPBR | Novascreen |
References
- 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 ]
- General Function:
- Cytokine activity
- Specific Function:
- Cytokine that affects the growth, movement, or activation state of cells that participate in immune and inflammatory response. Chemotactic for activated T-cells. Binds to CXCR3.
- Gene Name:
- CXCL9
- Uniprot ID:
- Q07325
- Molecular Weight:
- 14018.72 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 4.44 uM | BSK_hDFCGF_MIG_down | BioSeek |
References
- 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 ]
- General Function:
- Virus receptor activity
- Specific Function:
- ICAM proteins are ligands for the leukocyte adhesion protein LFA-1 (integrin alpha-L/beta-2). During leukocyte trans-endothelial migration, ICAM1 engagement promotes the assembly of endothelial apical cups through ARHGEF26/SGEF and RHOG activation.(Microbial infection) Acts as a receptor for major receptor group rhinovirus A-B capsid proteins (PubMed:1968231, PubMed:2538243). Acts as a receptor for Coxsackievirus A21 capsid proteins (PubMed:11160747, PubMed:16004874, PubMed:9539703). Upon Kaposi's sarcoma-associated herpesvirus/HHV-8 infection, is degraded by viral E3 ubiquitin ligase MIR2, presumably to prevent lysis of infected cells by cytotoxic T-lymphocytes and NK cell (PubMed:11413168).
- Gene Name:
- ICAM1
- Uniprot ID:
- P05362
- Molecular Weight:
- 57824.785 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 4.44 uM | BSK_KF3CT_ICAM1_down | BioSeek |
References
- 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 ]
- 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
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 7.71 uM | CLZD_CYP3A4_6 | CellzDirect |
| AC50 | 5.21 uM | CLZD_CYP3A4_48 | CellzDirect |
References
- 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 ]
- General Function:
- Oxygen binding
- Specific Function:
- Catalyzes the formation of aromatic C18 estrogens from C19 androgens.
- Gene Name:
- CYP19A1
- Uniprot ID:
- P11511
- Molecular Weight:
- 57882.48 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 5.32 uM | Tox21_Aromatase_Inhibition | Tox21/NCGC |
References
- 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 ]
- General Function:
- Transporter activity
- Specific Function:
- Involved in the ATP-dependent secretion of bile salts into the canaliculus of hepatocytes.
- Gene Name:
- ABCB11
- Uniprot ID:
- O95342
- Molecular Weight:
- 146405.83 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 5.36 uM | CLZD_ABCB11_48 | CellzDirect |
References
- 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 ]
- 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
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 5.84 uM | NVS_NR_hPXR | Novascreen |
References
- 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 ]
- General Function:
- Vitamin d 24-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 oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics.
- Gene Name:
- CYP1A1
- Uniprot ID:
- P04798
- Molecular Weight:
- 58164.815 Da
Binding/Activity Constants
| Type | Value | Assay Type | Assay Source |
|---|---|---|---|
| AC50 | 6.78 uM | CLZD_CYP1A1_6 | CellzDirect |
References
- 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 ]