ATP-binding cassette, subfamily B, protein that functions in the transport of ANTIGENS from the CYTOPLASM to the ENDOPLASMIC RETICULUM for association with HISTOCOMPATIBILITY ANTIGENS CLASS I peptides. It functions as a heterodimer with ATP BINDING CASSETTE TRANSPORTER, SUBFAMILY B, MEMBER 2.
Also Known As:
ATP Binding Cassette Transporter, Subfamily B, Member 3; ABCB3 Protein; ATP Binding Cassette Transporter, Sub-Family B, Member 3; ATP-Binding Cassette, Sub-Family B, Member 3; Antigen Peptide Transporter-2; Peptide Supply Factor 2; Peptide Transporter Tap2; Antigen Peptide Transporter 2; Tap2, Peptide Transporter