[Term] id: PR:000049282 name: mothers against decapentaplegic homolog 2, initiator methionine removed phosphorylated 1 (human) def: "A mothers against decapentaplegic homolog 2 (human) that has had the initiator methionine removed and has been post-translationally modified to include phosphoserine at positions 465 and 467 of the amino acid sequence represented by UniProtKB:Q15796. UniProtKB:Q15796, 2-467, Ser-465/Ser-467, MOD:00046." [PRO:DNx, Reactome:R-HSA-3009185, Reactome:R-HSA-3009186] comment: Category=organism-modification. synonym: "hSMAD2/InitMet-/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "PRO_0000090852, Ser-465/Ser-467, MOD:00046" EXACT PRO-proteoform-ftid [PRO:DNx] synonym: "UniProtKB:Q15796, 2-467, Ser-465/Ser-467, MOD:00046" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-3009185 "PR:000049282 located_in GO:0005654" xref: Reactome:R-HSA-3009186 "PR:000049282 located_in GO:0005829" is_a: PR:Q15796 ! mothers against decapentaplegic homolog 2 (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