[Term] id: PR:000036483 name: mothers against decapentaplegic homolog 4 isoform 1 phosphorylated 1 (human) def: "A smad4 isoform 1 phosphorylated 1 in human. UniProtKB:Q13485-1, Thr-277, MOD:00047." [PRO:CNA, PMID:12801888] comment: Category=organism-modification. synonym: "hSMAD4/iso:1/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:Q13485-1, Thr-277, MOD:00047" EXACT PRO-proteoform-std [PRO:DNx] intersection_of: PR:000000579 ! smad4 isoform 1 phosphorylated 1 intersection_of: only_in_taxon NCBITaxon:9606 ! Homo sapiens relationship: has_part MOD:00047 ! O-phospho-L-threonine