Recombinant Human Multidrug resistance-associated protein 5 (ABCC5), Truncated

Uniprot Id

O15440

Target Species

Human

Target Name

ABCC5

Target Full Name

ATP-binding cassette sub-family C member 5

Target Function

ATP-dependent transporter of the ATP-binding cassette (ABC) family that actively extrudes physiological compounds, and xenobiotics from cells. Mediates ATP-dependent transport of endogenous metabolites such as cAMP and cGMP, folic acid and N-lactoyl-amino acids (in vitro). Acts also as a general glutamate conjugate and analog transporter that can limit the brain levels of endogenous metabolites, drugs, and toxins. Confers resistance to the antiviral agent PMEA. Able to transport several anticancer drugs including methotrexate, and nucleotide analogs in vitro, however it does with low affinity, thus the exact role of ABCC5 in mediating resistance still needs to be elucidated. Acts as a heme transporter required for the translocation of cytosolic heme to the secretory pathway. May play a role in energy metabolism by regulating the glucagon-like peptide 1 (GLP-1) secretion from enteroendocrine cells.

Target Subcellular Location

Basolateral cell membrane; Multi-pass membrane protein. Golgi apparatus lumen. Endosome membrane. Cytoplasmic granule. Apical cell membrane; Multi-pass membrane protein.

Target Protein Families

ABC transporter superfamily, ABCC family, Conjugate transporter (TC 3.A.1.208) subfamily

Target Tissue Specificity

[Isoform 3]: Predominant isoform in retinal pigment epithelium, bladder, and stomach.; Ubiquitously expressed, but levels in brain and muscle are especially high. All isoforms are equally expressed in retina.

Target Synonyms

ABC 33; ABC33; ABCC 5; Abcc5; ATP binding cassette sub family C (CFTR/MRP) member 5; ATP binding cassette sub family C member 5; ATP-binding cassette sub-family C member 5; Canalicular multispecific organic anion transporter C; DKFZp686C1782; EST277145; MOAT C; MOAT-C; MOATC; MRP 5; MRP5_HUMAN; Multi specific organic anion tranporter C; Multi-specific organic anion transporter C; Multidrug resistance associated protein 5; Multidrug resistance-associated protein 5; pABC 11; pABC11; SMRP

Target Background

The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MRP subfamily which is involved in multi-drug resistance. This protein functions in the cellular export of its substrate, cyclic nucleotides. This export contributes to the degradation of phosphodiesterases and possibly an elimination pathway for cyclic nucleotides. Studies show that this protein provides resistance to thiopurine anticancer drugs, 6-mercatopurine and thioguanine, and the anti-HIV drug 9-(2-phosphonylmethoxyethyl)adenine. This protein may be involved in resistance to thiopurines in acute lymphoblastic leukemia and antiretroviral nucleoside analogs in HIV-infected patients. Alternative splicing results in multiple transcript variants.