Anti-TRBV11-1 antibodies are used in the immunodetection of the protein T cell receptor beta variable 11-1. In humans, the canonical protein has a reported length of 115 amino acid residues and a mass of 12.8 kDa. Its subcellular localization is in the cell membrane. TRBV11-1 is known to be involved with adaptive immune responses and receptor-mediated signaling pathways.