Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells. Belongs to the ABC transporter superfamily. ABCB family. Multidrug resistance exporter (TC 3.A.1.201) subfamily. Interacts with PSMB8. Note: This description may include information from UniProtKB.
Cellular Component: cell surface; integral to membrane; membrane; plasma membrane
Molecular Function: ATP binding; ATPase activity, coupled to transmembrane movement of substances; protein binding; transporter activity; xenobiotic-transporting ATPase activity
Biological Process: antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-dependent; antigen processing and presentation of endogenous peptide antigen via MHC class Ib via ER pathway, TAP-dependent; antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent; G2/M transition of mitotic cell cycle; multidrug transport; positive regulation of antigen processing and presentation of peptide antigen via MHC class I; response to drug; transmembrane transport; transport; xenobiotic transport
LTP: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.