Record Information
Version2.0
Creation Date2010-05-04 21:13:54 UTC
Update Date2014-12-24 20:26:27 UTC
Accession NumberT3D3730
Identification
Common NameRubratoxin B
ClassSmall Molecule
DescriptionRubratoxin B is a mycotoxin produced by fungi such as Penicillum rubrum and Penicillum purpurogenum, which are common soil fungi that sometimes contaminate animal feeds. Rubratoxin B has been shown to be hepatotoxic, nephrotoxic, and splenotoxic. (2)
Compound Type
  • Ester
  • Ether
  • Fungal Toxin
  • Mycotoxin
  • Natural Compound
  • Organic Compound
Chemical Structure
Thumb
Synonyms
Synonym
Rubratoxin
Rubratoxin b
Chemical FormulaC26H30O11
Average Molecular Mass518.510 g/mol
Monoisotopic Mass518.179 g/mol
CAS Registry Number21794-01-4
IUPAC Name2-hydroxy-10-[hydroxy(6-oxo-3,6-dihydro-2H-pyran-2-yl)methyl]-3-(1-hydroxyheptyl)-6,14-dioxatricyclo[10.3.0.0⁴,⁸]pentadeca-1(12),4(8)-diene-5,7,13,15-tetrone
Traditional Namerubratoxin B
SMILESCCCCCCC(O)C1C(O)C2=C(CC(CC3=C1C(=O)OC3=O)C(O)C1CC=CC(=O)O1)C(=O)OC2=O
InChI IdentifierInChI=1S/C26H30O11/c1-2-3-4-5-7-15(27)20-18-13(23(31)36-25(18)33)10-12(21(29)16-8-6-9-17(28)35-16)11-14-19(22(20)30)26(34)37-24(14)32/h6,9,12,15-16,20-22,27,29-30H,2-5,7-8,10-11H2,1H3
InChI KeyInChIKey=ZJTBTDVZNGBSNG-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as pentacarboxylic acids and derivatives. These are carboxylic acids containing exactly five carboxyl groups.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassPentacarboxylic acids and derivatives
Direct ParentPentacarboxylic acids and derivatives
Alternative Parents
Substituents
  • Pentacarboxylic acid or derivatives
  • Fatty alcohol
  • Dihydropyranone
  • 2-furanone
  • Fatty acyl
  • Pyran
  • Carboxylic acid anhydride
  • Dihydrofuran
  • Alpha,beta-unsaturated carboxylic ester
  • Enoate ester
  • Carboxylic acid ester
  • Lactone
  • Secondary alcohol
  • Organoheterocyclic compound
  • Oxacycle
  • Hydrocarbon derivative
  • Alcohol
  • Organic oxide
  • Carbonyl group
  • Organooxygen compound
  • Organic oxygen compound
  • Aliphatic heteropolycyclic compound
Molecular FrameworkAliphatic heteropolycyclic compounds
External DescriptorsNot Available
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
LogPNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.14 g/LALOGPS
logP1.52ALOGPS
logP2.38ChemAxon
logS-3.6ALOGPS
pKa (Strongest Acidic)3.08ChemAxon
pKa (Strongest Basic)-2.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count8ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area173.73 ŲChemAxon
Rotatable Bond Count8ChemAxon
Refractivity126.17 m³·mol⁻¹ChemAxon
Polarizability52.08 ųChemAxon
Number of Rings4ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0ue9-0000960000-5a611ed1d9835cb0c6612016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0fh9-2002910000-64b43b8694a362ca75fc2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0fxy-8007900000-3430846a09e3a75b7b342016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-00xr-0000930000-0be53125a6e059a12ff22016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00fs-1103900000-7ba191ed9f227c47b5de2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4l-7009600000-549934362a01c46622d92016-08-03View Spectrum
Toxicity Profile
Route of ExposureOral, dermal, inhalation, and parenteral (contaminated drugs). (6)
Mechanism of ToxicityRubratoxin B is cytotoxic, hinders cell proliferation, and induces apoptosis. It also inhibits the activity of matrix metalloproteinase-2 and -9. Rubratoxin B causes disaggregation of the polyribosome complex, likely by inhibiting an enzyme associated with the site of polyribosome binding to the membrane. It has also been shown to bind to some hepatic microsomes and inhibit Na+/K+-transporting ATPases. Rubratoxin B can inhibit protein phosphatase 2A, exerting antitumor and antimetastatic effects. Inhibition may cause the phosphorylation of CREB and subsequent activation of natural killer cells via the stimulation of interleukin-2 release from T cells, contributing to antimetastatic effects. Focal adhesion kinase phosphorylation and paxillin phosphorylation that interfere with cell adhesion could be another antimetastatic effect. Mycotoxins are often able to enter the liver and kidney by human organic anion transporters (hOATs) and human organic cation transporters (hOCTs). They can also inhibit uptake of anions and cations by these transporters, interefering with the secretion of endogenous metabolites, drugs, and xenobiotics including themselves. This results in increased cellular accumulation of toxic compounds causing nephro- and hepatotoxicity. (2, 3, 4, 5)
MetabolismNot Available
Toxicity ValuesLD50: 0.22-0.43 mg/kg (Intraperitoneal, Mouse) (1)
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesRubratoxin B is a mycotoxin produced by fungi such as Penicillum rubrum and Penicillum purpurogenum, which are common soil fungi that sometimes contaminate animal feeds. (2)
Minimum Risk LevelNot Available
Health EffectsRubratoxin B is hepatotoxic, nephrotoxic, and splenotoxic, causing congestive, hemorrhagic and degenerative lesions. (2, 3)
SymptomsNot Available
TreatmentNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
PubChem Compound ID11969548
ChEMBL IDNot Available
ChemSpider IDNot Available
KEGG IDNot Available
UniProt IDNot Available
OMIM ID
ChEBI IDNot Available
BioCyc IDNot Available
CTD IDNot Available
Stitch IDNot Available
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkNot Available
References
Synthesis ReferenceNot Available
MSDST3D3730.pdf
General References
  1. Engelhardt JA, Carlton WW, Rebar AH, Hayes AW: Rubratoxin B mycotoxicosis in the Swiss ICR mouse. Food Chem Toxicol. 1988 May;26(5):459-66. [3391470 ]
  2. Wang T, Zhang Y, Wang Y, Pei YH: Anti-tumor effects of Rubratoxin B on cell toxicity, inhibition of cell proliferation, cytotoxic activity and matrix metalloproteinase-2,9. Toxicol In Vitro. 2007 Jun;21(4):646-50. Epub 2007 Jan 11. [17306501 ]
  3. Watson SA, Hayes AW: Binding of rubratoxin B to mouse hepatic microsomes and in vitro effects of the mycotoxin on polysome binding to microsomal membranes as measured by the activity of an enzyme catalyzing disulphide interchange. Toxicon. 1981;19(4):509-16. [6895804 ]
  4. Phillips TD, Hayes AW: Structural modification of polyfunctional rubratoxin B: effects on mammalian adenosine triphosphatase. J Environ Pathol Toxicol. 1979 Jan-Feb;2(3):853-60. [217944 ]
  5. Tachampa K, Takeda M, Khamdang S, Noshiro-Kofuji R, Tsuda M, Jariyawat S, Fukutomi T, Sophasan S, Anzai N, Endou H: Interactions of organic anion transporters and organic cation transporters with mycotoxins. J Pharmacol Sci. 2008 Mar;106(3):435-43. Epub 2008 Mar 5. [18319568 ]
  6. Peraica M, Domijan AM: Contamination of food with mycotoxins and human health. Arh Hig Rada Toksikol. 2001 Mar;52(1):23-35. [11370295 ]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

General Function:
PP2A is the major phosphatase for microtubule-associated proteins (MAPs). PP2A can modulate the activity of phosphorylase B kinase casein kinase 2, mitogen-stimulated S6 kinase, and MAP-2 kinase. Cooperates with SGO2 to protect centromeric cohesin from separase-mediated cleavage in oocytes specifically during meiosis I (By similarity). Can dephosphorylate SV40 large T antigen and p53/TP53. Activates RAF1 by dephosphorylating it at 'Ser-259'.
Specific Function:
Gaba receptor binding
Gene Name:
PPP2CA
Uniprot ID:
P67775
Molecular Weight:
35593.93 Da
References
  1. Wada S, Usami I, Umezawa Y, Inoue H, Ohba S, Someno T, Kawada M, Ikeda D: Rubratoxin A specifically and potently inhibits protein phosphatase 2A and suppresses cancer metastasis. Cancer Sci. 2010 Mar;101(3):743-50. doi: 10.1111/j.1349-7006.2009.01438.x. Epub 2009 Nov 14. [20028386 ]
  2. Phillips TD, Hayes AW: Structural modification of polyfunctional rubratoxin B: effects on mammalian adenosine triphosphatase. J Environ Pathol Toxicol. 1979 Jan-Feb;2(3):853-60. [217944 ]
General Function:
Zinc ion binding
Specific Function:
Ubiquitinous metalloproteinase that is involved in diverse functions such as remodeling of the vasculature, angiogenesis, tissue repair, tumor invasion, inflammation, and atherosclerotic plaque rupture. As well as degrading extracellular matrix proteins, can also act on several nonmatrix proteins such as big endothelial 1 and beta-type CGRP promoting vasoconstriction. Also cleaves KISS at a Gly-|-Leu bond. Appears to have a role in myocardial cell death pathways. Contributes to myocardial oxidative stress by regulating the activity of GSK3beta. Cleaves GSK3beta in vitro. Involved in the formation of the fibrovascular tissues in association with MMP14.PEX, the C-terminal non-catalytic fragment of MMP2, posseses anti-angiogenic and anti-tumor properties and inhibits cell migration and cell adhesion to FGF2 and vitronectin. Ligand for integrinv/beta3 on the surface of blood vessels.Isoform 2: Mediates the proteolysis of CHUK/IKKA and initiates a primary innate immune response by inducing mitochondrial-nuclear stress signaling with activation of the pro-inflammatory NF-kappaB, NFAT and IRF transcriptional pathways.
Gene Name:
MMP2
Uniprot ID:
P08253
Molecular Weight:
73881.695 Da
References
  1. Wang T, Zhang Y, Wang Y, Pei YH: Anti-tumor effects of Rubratoxin B on cell toxicity, inhibition of cell proliferation, cytotoxic activity and matrix metalloproteinase-2,9. Toxicol In Vitro. 2007 Jun;21(4):646-50. Epub 2007 Jan 11. [17306501 ]
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
References
  1. Wang T, Zhang Y, Wang Y, Pei YH: Anti-tumor effects of Rubratoxin B on cell toxicity, inhibition of cell proliferation, cytotoxic activity and matrix metalloproteinase-2,9. Toxicol In Vitro. 2007 Jun;21(4):646-50. Epub 2007 Jan 11. [17306501 ]
General Function:
Protein serine/threonine phosphatase activity
Specific Function:
The PR65 subunit of protein phosphatase 2A serves as a scaffolding molecule to coordinate the assembly of the catalytic subunit and a variable regulatory B subunit. Required for proper chromosome segregation and for centromeric localization of SGOL1 in mitosis.
Gene Name:
PPP2R1A
Uniprot ID:
P30153
Molecular Weight:
65307.81 Da
References
  1. Wada S, Usami I, Umezawa Y, Inoue H, Ohba S, Someno T, Kawada M, Ikeda D: Rubratoxin A specifically and potently inhibits protein phosphatase 2A and suppresses cancer metastasis. Cancer Sci. 2010 Mar;101(3):743-50. doi: 10.1111/j.1349-7006.2009.01438.x. Epub 2009 Nov 14. [20028386 ]
General Function:
Protein phosphatase type 2a regulator activity
Specific Function:
The PR65 subunit of protein phosphatase 2A serves as a scaffolding molecule to coordinate the assembly of the catalytic subunit and a variable regulatory B subunit.
Gene Name:
PPP2R1B
Uniprot ID:
P30154
Molecular Weight:
66212.77 Da
References
  1. Wada S, Usami I, Umezawa Y, Inoue H, Ohba S, Someno T, Kawada M, Ikeda D: Rubratoxin A specifically and potently inhibits protein phosphatase 2A and suppresses cancer metastasis. Cancer Sci. 2010 Mar;101(3):743-50. doi: 10.1111/j.1349-7006.2009.01438.x. Epub 2009 Nov 14. [20028386 ]
General Function:
Protein serine/threonine phosphatase activity
Specific Function:
PP2A can modulate the activity of phosphorylase B kinase casein kinase 2, mitogen-stimulated S6 kinase, and MAP-2 kinase.
Gene Name:
PPP2CB
Uniprot ID:
P62714
Molecular Weight:
35574.85 Da
References
  1. Wada S, Usami I, Umezawa Y, Inoue H, Ohba S, Someno T, Kawada M, Ikeda D: Rubratoxin A specifically and potently inhibits protein phosphatase 2A and suppresses cancer metastasis. Cancer Sci. 2010 Mar;101(3):743-50. doi: 10.1111/j.1349-7006.2009.01438.x. Epub 2009 Nov 14. [20028386 ]
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. Phillips TD, Hayes AW: Structural modification of polyfunctional rubratoxin B: effects on mammalian adenosine triphosphatase. J Environ Pathol Toxicol. 1979 Jan-Feb;2(3):853-60. [217944 ]
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. Phillips TD, Hayes AW: Structural modification of polyfunctional rubratoxin B: effects on mammalian adenosine triphosphatase. J Environ Pathol Toxicol. 1979 Jan-Feb;2(3):853-60. [217944 ]
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. Phillips TD, Hayes AW: Structural modification of polyfunctional rubratoxin B: effects on mammalian adenosine triphosphatase. J Environ Pathol Toxicol. 1979 Jan-Feb;2(3):853-60. [217944 ]
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. Phillips TD, Hayes AW: Structural modification of polyfunctional rubratoxin B: effects on mammalian adenosine triphosphatase. J Environ Pathol Toxicol. 1979 Jan-Feb;2(3):853-60. [217944 ]
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. Phillips TD, Hayes AW: Structural modification of polyfunctional rubratoxin B: effects on mammalian adenosine triphosphatase. J Environ Pathol Toxicol. 1979 Jan-Feb;2(3):853-60. [217944 ]
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. Phillips TD, Hayes AW: Structural modification of polyfunctional rubratoxin B: effects on mammalian adenosine triphosphatase. J Environ Pathol Toxicol. 1979 Jan-Feb;2(3):853-60. [217944 ]
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. Phillips TD, Hayes AW: Structural modification of polyfunctional rubratoxin B: effects on mammalian adenosine triphosphatase. J Environ Pathol Toxicol. 1979 Jan-Feb;2(3):853-60. [217944 ]
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. Phillips TD, Hayes AW: Structural modification of polyfunctional rubratoxin B: effects on mammalian adenosine triphosphatase. J Environ Pathol Toxicol. 1979 Jan-Feb;2(3):853-60. [217944 ]
General Function:
Secondary active organic cation transmembrane transporter activity
Specific Function:
Translocates a broad array of organic cations with various structures and molecular weights including the model compounds 1-methyl-4-phenylpyridinium (MPP), tetraethylammonium (TEA), N-1-methylnicotinamide (NMN), 4-(4-(dimethylamino)styryl)-N-methylpyridinium (ASP), the endogenous compounds choline, guanidine, histamine, epinephrine, adrenaline, noradrenaline and dopamine, and the drugs quinine, and metformin. The transport of organic cations is inhibited by a broad array of compounds like tetramethylammonium (TMA), cocaine, lidocaine, NMDA receptor antagonists, atropine, prazosin, cimetidine, TEA and NMN, guanidine, cimetidine, choline, procainamide, quinine, tetrabutylammonium, and tetrapentylammonium. Translocates organic cations in an electrogenic and pH-independent manner. Translocates organic cations across the plasma membrane in both directions. Transports the polyamines spermine and spermidine. Transports pramipexole across the basolateral membrane of the proximal tubular epithelial cells. The choline transport is activated by MMTS. Regulated by various intracellular signaling pathways including inhibition by protein kinase A activation, and endogenously activation by the calmodulin complex, the calmodulin-dependent kinase II and LCK tyrosine kinase.
Gene Name:
SLC22A1
Uniprot ID:
O15245
Molecular Weight:
61153.345 Da
References
  1. Tachampa K, Takeda M, Khamdang S, Noshiro-Kofuji R, Tsuda M, Jariyawat S, Fukutomi T, Sophasan S, Anzai N, Endou H: Interactions of organic anion transporters and organic cation transporters with mycotoxins. J Pharmacol Sci. 2008 Mar;106(3):435-43. Epub 2008 Mar 5. [18319568 ]
General Function:
Sodium-independent organic anion transmembrane transporter activity
Specific Function:
Mediates saturable uptake of estrone sulfate, dehydroepiandrosterone sulfate and related compounds.
Gene Name:
SLC22A11
Uniprot ID:
Q9NSA0
Molecular Weight:
59970.945 Da
References
  1. Tachampa K, Takeda M, Khamdang S, Noshiro-Kofuji R, Tsuda M, Jariyawat S, Fukutomi T, Sophasan S, Anzai N, Endou H: Interactions of organic anion transporters and organic cation transporters with mycotoxins. J Pharmacol Sci. 2008 Mar;106(3):435-43. Epub 2008 Mar 5. [18319568 ]
General Function:
Quaternary ammonium group transmembrane transporter activity
Specific Function:
Mediates tubular uptake of organic compounds from circulation. Mediates the influx of agmatine, dopamine, noradrenaline (norepinephrine), serotonin, choline, famotidine, ranitidine, histamin, creatinine, amantadine, memantine, acriflavine, 4-[4-(dimethylamino)-styryl]-N-methylpyridinium ASP, amiloride, metformin, N-1-methylnicotinamide (NMN), tetraethylammonium (TEA), 1-methyl-4-phenylpyridinium (MPP), cimetidine, cisplatin and oxaliplatin. Cisplatin may develop a nephrotoxic action. Transport of creatinine is inhibited by fluoroquinolones such as DX-619 and LVFX. This transporter is a major determinant of the anticancer activity of oxaliplatin and may contribute to antitumor specificity.
Gene Name:
SLC22A2
Uniprot ID:
O15244
Molecular Weight:
62579.99 Da
References
  1. Tachampa K, Takeda M, Khamdang S, Noshiro-Kofuji R, Tsuda M, Jariyawat S, Fukutomi T, Sophasan S, Anzai N, Endou H: Interactions of organic anion transporters and organic cation transporters with mycotoxins. J Pharmacol Sci. 2008 Mar;106(3):435-43. Epub 2008 Mar 5. [18319568 ]
General Function:
Sodium-independent organic anion transmembrane transporter activity
Specific Function:
Involved in the renal elimination of endogenous and exogenous organic anions. Functions as organic anion exchanger when the uptake of one molecule of organic anion is coupled with an efflux of one molecule of endogenous dicarboxylic acid (glutarate, ketoglutarate, etc). Mediates the sodium-independent uptake of 2,3-dimercapto-1-propanesulfonic acid (DMPS) (By similarity). Mediates the sodium-independent uptake of p-aminohippurate (PAH), ochratoxin (OTA), acyclovir (ACV), 3'-azido-3-'deoxythymidine (AZT), cimetidine (CMD), 2,4-dichloro-phenoxyacetate (2,4-D), hippurate (HA), indoleacetate (IA), indoxyl sulfate (IS) and 3-carboxy-4-methyl-5-propyl-2-furanpropionate (CMPF), cidofovir, adefovir, 9-(2-phosphonylmethoxyethyl) guanine (PMEG), 9-(2-phosphonylmethoxyethyl) diaminopurine (PMEDAP) and edaravone sulfate. PAH uptake is inhibited by p-chloromercuribenzenesulphonate (PCMBS), diethyl pyrocarbonate (DEPC), sulindac, diclofenac, carprofen, glutarate and okadaic acid (By similarity). PAH uptake is inhibited by benzothiazolylcysteine (BTC), S-chlorotrifluoroethylcysteine (CTFC), cysteine S-conjugates S-dichlorovinylcysteine (DCVC), furosemide, steviol, phorbol 12-myristate 13-acetate (PMA), calcium ionophore A23187, benzylpenicillin, furosemide, indomethacin, bumetamide, losartan, probenecid, phenol red, urate, and alpha-ketoglutarate.
Gene Name:
SLC22A6
Uniprot ID:
Q4U2R8
Molecular Weight:
61815.78 Da
References
  1. Tachampa K, Takeda M, Khamdang S, Noshiro-Kofuji R, Tsuda M, Jariyawat S, Fukutomi T, Sophasan S, Anzai N, Endou H: Interactions of organic anion transporters and organic cation transporters with mycotoxins. J Pharmacol Sci. 2008 Mar;106(3):435-43. Epub 2008 Mar 5. [18319568 ]
General Function:
Sodium-independent organic anion transmembrane transporter activity
Specific Function:
Mediates sodium-independent multispecific organic anion transport. Transport of prostaglandin E2, prostaglandin F2, tetracycline, bumetanide, estrone sulfate, glutarate, dehydroepiandrosterone sulfate, allopurinol, 5-fluorouracil, paclitaxel, L-ascorbic acid, salicylate, ethotrexate, and alpha-ketoglutarate.
Gene Name:
SLC22A7
Uniprot ID:
Q9Y694
Molecular Weight:
60025.025 Da
References
  1. Tachampa K, Takeda M, Khamdang S, Noshiro-Kofuji R, Tsuda M, Jariyawat S, Fukutomi T, Sophasan S, Anzai N, Endou H: Interactions of organic anion transporters and organic cation transporters with mycotoxins. J Pharmacol Sci. 2008 Mar;106(3):435-43. Epub 2008 Mar 5. [18319568 ]
General Function:
Sodium-independent organic anion transmembrane transporter activity
Specific Function:
Plays an important role in the excretion/detoxification of endogenous and exogenous organic anions, especially from the brain and kidney. Involved in the transport basolateral of steviol, fexofenadine. Transports benzylpenicillin (PCG), estrone-3-sulfate (E1S), cimetidine (CMD), 2,4-dichloro-phenoxyacetate (2,4-D), p-amino-hippurate (PAH), acyclovir (ACV) and ochratoxin (OTA).
Gene Name:
SLC22A8
Uniprot ID:
Q8TCC7
Molecular Weight:
59855.585 Da
References
  1. Tachampa K, Takeda M, Khamdang S, Noshiro-Kofuji R, Tsuda M, Jariyawat S, Fukutomi T, Sophasan S, Anzai N, Endou H: Interactions of organic anion transporters and organic cation transporters with mycotoxins. J Pharmacol Sci. 2008 Mar;106(3):435-43. Epub 2008 Mar 5. [18319568 ]