ABCC11

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 ABC full transporter is a member of the MRP subfamily which is involved in multi-drug resistance. The product of this gene participates in physiological processes involving bile acids, conjugated steroids, and cyclic nucleotides. In addition, a SNP in this gene is responsible for determination of human earwax type. This gene and family member ABCC12 are determined to be derived by duplication and are both localized to chromosome 16q12.1. Multiple alternatively spliced transcript variants have been described for this gene. [provided by RefSeq]

Full Name

ATP-binding cassette, sub-family C (CFTR/MRP), member 11

Function

ATP-dependent transporter of the ATP-binding cassette (ABC) family that actively extrudes physiological compounds, and xenobiotics from cells. Participates in physiological processes involving bile acids, conjugated steroids and cyclic nucleotides. Stimulates the ATP-dependent uptake of a range of physiological lipophilic anions, including the glutathione S-conjugates leukotriene C4 and dinitrophenyl S-glutathione, steroid sulfates such as dehydroepiandrosterone 3-sulfate (DHEAS) and estrone 3-sulfate, glucuronides such as estradiol 17-beta-D-glucuronide (E217betaG), the monoanionic bile acids glycocholate and taurocholate, and methotrexate. Enhances also the cellular extrusion of cAMP and cGMP. Confers resistance to anticancer drugs, such as 5-fluorouracil (5-FU) and methotrexate. Probably functions to secrete earwax. Required for the secretion of components contributing to axillary odor formation.

Biological Process

Bile acid and bile salt transport
Leukotriene transport
Organic anion transport
Purine nucleotide transport
Transmembrane transport
Xenobiotic transport

Cellular Location

Cell membrane; Apical cell membrane; Vacuole membrane; Cytoplasmic vesicle membrane