[Term] id: PR:000076696 name: period circadian protein homolog 2 citrullinated 1 (human) def: "A period circadian protein homolog 2 (human) that has been citrullinated on the residue at the position equivalent to Arg-403 of the amino acid sequence represented by UniProtKB:O15055-1. Example: UniProtKB:O15055-1, Arg-403, MOD:00219." [PRO:DNx, IEDB_epitope:912394] comment: Category=organism-modification. synonym: "hPER2/Cit:1" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:O15055, Arg-403, MOD:00219" EXACT PRO-proteoform-std [PRO:DNx] synonym: "UniProtKB:O15055-1, Arg-403, MOD:00219" NARROW PRO-proteoform-std [PRO:DNx] is_a: PR:O15055 ! period circadian protein homolog 2 (human) relationship: has_part MOD:00219 ! L-citrulline relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens