[Term] id: PR:000081582 name: HLA class I histocompatibility antigen, B alpha chain hydroxylated 1 (human) def: "An HLA class I histocompatibility antigen, B alpha chain (human) that has been hydroxylated on the residue at the position equivalent to Trp-241 of the amino acid sequence represented by UniProtKB:P01889. UniProtKB:P01889, Trp-241, MOD:01622." [PRO:DNx, IEDB_epitope:1317348] comment: Category=organism-modification. synonym: "hHLA-B/Hy:1" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:P01889, Trp-241, MOD:01622" EXACT PRO-proteoform-std [PRO:DNx] is_a: PR:P01889 ! HLA class I histocompatibility antigen, B alpha chain (human) relationship: has_part MOD:01622 ! monohydroxylated tryptophan relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens