[Term] id: PR:000062169 name: dual specificity mitogen-activated protein kinase kinase 1 sequence variant F53Y, initiator methionine removed form (human) def: "A dual specificity mitogen-activated protein kinase kinase 1 (human) that has a Tyr residue at the position equivalent to Phe-53 of the amino acid sequence represented by UniProtKB:Q02750-1 and that has had the initiator methionine removed. Example: UniProtKB:Q02750-1, 2-393, Phe-53, CHEBI:46858." [PRO:DNx, Reactome:R-HSA-9652041] comment: Category=organism-modification. synonym: "hMAP2K1/var:F53Y/InitMet-" EXACT PRO-short-label [PRO:DNx] synonym: "MAP2K1 F53Y" RELATED Reactome-displayName [PRO:DNx, Reactome:R-HSA-9652041] synonym: "UniProtKB:Q02750, 2-393, Phe-53, CHEBI:46858" EXACT PRO-proteoform-std [PRO:DNx] synonym: "UniProtKB:Q02750-1, 2-393, Phe-53, CHEBI:46858" NARROW PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-9652041 "PR:000062169 located_in GO:0005829" is_a: PR:Q02750 ! dual specificity mitogen-activated protein kinase kinase 1 (human) relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens