ATP Binding Cassette Transporter, Subfamily B, Member 3

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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.

Synonyms: ATP-Binding Cassette, Sub-Family B, Member 3, 0, Peptide Supply Factor 2, Antigen Peptide Transporter-2, Tap2, Peptide Transporter, Peptide Transporter Tap2, ABCB3 Protein, ATP Binding Cassette Transporter, Sub-Family B, Member 3, ATP Binding Cassette Transporter, Subfamily B, Member 3, Antigen Peptide Transporter 2