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Function

ATP-dependent transporter of the ATP-binding cassette (ABC) family that binds and hydrolyzes ATP to enable active transport of various substrates including many drugs, toxicants and endogenous compound across cell membranes (PubMed:10359813, PubMed:11581266, PubMed:15083066). Transports glucuronide conjugates such as bilirubin diglucuronide, estradiol-17-beta-o-glucuronide and GSH conjugates such as leukotriene C4 (LTC4) (PubMed:11581266, PubMed:15083066). Transports also various bile salts (taurocholate, glycocholate, taurochenodeoxycholate-3-sulfate, taurolithocholate- 3-sulfate) (By similarity). Does not contribute substantially to bile salt physiology but provides an alternative route for the export of bile acids and glucuronides from cholestatic hepatocytes (By similarity). May contribute to regulate the transport of organic compounds in testes across the blood-testis-barrier (Probable). Can confer resistance to various anticancer drugs, methotrexate, tenoposide and etoposide, by decreasing accumulation of these drugs in cells (PubMed:10359813, PubMed:11581266).

Sequence similarities

Belongs to the ABC transporter superfamily. ABCC family. Conjugate transporter (TC 3.A.1.208) subfamily.

Tissue specificity

Mainly expressed in the liver. Also expressed in small intestine, colon, prostate, testis, brain and at a lower level in the kidney. In testis, localized to peritubular myoid cells, Leydig cells, along the basal membrane of Sertoli cells and moderately in the adluminal compartment of the seminiferous tubules (PubMed:35307651).

Cellular localization

  • Basolateral cell membrane
  • Multi-pass membrane protein
  • Basal cell membrane
  • Multi-pass membrane protein
  • Localized to the basolateral membrane of enterocytes (PubMed:28408210). Localized to the basal membrane of Sertoli cells (PubMed:35307651).

Alternative names

CMOAT2, MLP2, MRP3, ABCC3, ATP-binding cassette sub-family C member 3, Canalicular multispecific organic anion transporter 2, Multi-specific organic anion transporter D, Multidrug resistance-associated protein 3, MOAT-D

Target type

Proteins

Primary research area

Metabolism

Molecular weight

169343Da

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Primary Antibodies

Cell Lines & Lysates

Target

Cell type

Species or organism