[Term] id: PR:000070851 name: HLA class I histocompatibility antigen, B alpha chain phosphorylated 1 (human) def: "An HLA class I histocompatibility antigen, B alpha chain (human) that has been phosphorylated on the residue at the position equivalent to Tyr-123 of the amino acid sequence represented by UniProtKB:P01889. UniProtKB:P01889, Tyr-123, MOD:00048." [PRO:DNx, IEDB_epitope:1858840] comment: Category=organism-modification. synonym: "hHLA-B/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:P01889, Tyr-123, MOD:00048" EXACT PRO-proteoform-std [PRO:DNx] is_a: PR:P01889 ! HLA class I histocompatibility antigen, B alpha chain (human) relationship: has_part MOD:00048 ! O4'-phospho-L-tyrosine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens