ATP-binding cassette sub-family B member 8, mitochondrial is a protein that in humans is encoded by the ABCB8gene.
The membrane-associated 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 MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance as well as antigen presentation. The function of this half-transporter has not yet been determined; however, it may involve the compartmentalization and transport of heme, as well as peptides, from the mitochondria to the nucleus and cytosol. This protein may also play a role in the transport of phospholipids into mitochondrial membranes.
^Allikmets R, Gerrard B, Hutchinson A, Dean M (Feb 1997). "Characterization of the human ABC superfamily: isolation and mapping of 21 new genes using the expressed sequence tags database". Hum Mol Genet. 5 (10): 1649–55. doi:10.1093/hmg/5.10.1649. PMID8894702.
Saito S, Iida A, Sekine A, et al. (2002). "Three hundred twenty-six genetic variations in genes encoding nine members of ATP-binding cassette, subfamily B (ABCB/MDR/TAP), in the Japanese population". J. Hum. Genet. 47 (1): 38–50. doi:10.1007/s10038-002-8653-6. PMID11829140.
Hogue DL, Liu L, Ling V (1999). "Identification and characterization of a mammalian mitochondrial ATP-binding cassette membrane protein". J. Mol. Biol. 285 (1): 379–89. doi:10.1006/jmbi.1998.2259. PMID9878413.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID9373149.