[Term]
id: PR:000045808
name: glycogen synthase kinase-3 alpha initiator methionine removed phosphorylated 1 (human)
def: "A glycogen synthase kinase-3 alpha (human) that has had the initiator methionine removed and that has been phosphorylated at Ser-21. UniProtKB:P49840, 2-483, Ser-21, MOD:00046." [PMID:11035810, iPTMnet:P49840]
comment: Category=organism-modification. Evidence=(ECO:0000006, based on PMID:11035810).
synonym: "hGSK3A/InitMet-/Phos:1" EXACT PRO-short-label [PRO:DNx]
synonym: "UniProtKB:P49840, 2-483, Ser-21, MOD:00046" EXACT PRO-proteoform-std [PRO:DNx]
xref: Reactome:R-HSA-198352 "PR:000045808 located_in GO:0005829"
is_a: PR:P49840 ! glycogen synthase kinase-3 alpha (human)
relationship: has_part MOD:00046 ! O-phospho-L-serine
relationship: lacks_part PR:000021937 ! initiator methionine
relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens