[Term] id: PR:000065704 name: ubiquitin carboxyl-terminal hydrolase 21 phosphorylated 1 (human) def: "A ubiquitin carboxyl-terminal hydrolase 21 (human) that has been phosphorylated on the residue at the position equivalent to Tyr-290 of the amino acid sequence represented by UniProtKB:Q9UK80-1. Example: UniProtKB:Q9UK80-1, Tyr-290, MOD:00048." [PRO:DNx, IEDB_epitope:2148201] comment: Category=organism-modification. synonym: "hUSP21/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:Q9UK80, Tyr-290, MOD:00048" EXACT PRO-proteoform-std [PRO:DNx] synonym: "UniProtKB:Q9UK80-1, Tyr-290, MOD:00048" NARROW PRO-proteoform-std [PRO:DNx] is_a: PR:Q9UK80 ! ubiquitin carboxyl-terminal hydrolase 21 (human) relationship: has_part MOD:00048 ! O4'-phospho-L-tyrosine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens