[Term] id: PR:000049285 name: mothers against decapentaplegic homolog 3 phosphorylated 1 (human) def: "A mothers against decapentaplegic homolog 3 (human) that has been post-translationally modified to include phosphoserine at positions 423 and 425 of the amino acid sequence represented by UniProtKB:P84022. UniProtKB:P84022, Ser-423/Ser-425, MOD:00046." [PRO:DNx, Reactome:R-HSA-171184, Reactome:R-HSA-177104] comment: Category=organism-modification. synonym: "hSMAD3/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:P84022, Ser-423/Ser-425, MOD:00046" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-171184 "PR:000049285 located_in GO:0005829" xref: Reactome:R-HSA-177104 "PR:000049285 located_in GO:0005654" is_a: PR:P84022 ! mothers against decapentaplegic homolog 3 (human) relationship: has_part MOD:00046 ! O-phospho-L-serine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens