[Term] id: PR:000025937 name: smad2 isoform Long phosphorylated 4 (human) def: "A smad2 isoform Long phosphorylated 4 in human. This form is phosphorylated at the clusters of [S/T]P motifs within the MH1-MH2 domain linker region. UniProtKB:Q15796-1, Thr-220, MOD:00047|Ser-245/Ser-250/Ser-255, MOD:00046." [PMID:10197981] comment: Category=organism-modification. Kinase=("MAP2K1"; PR:000026196; Thr-220/Ser-245/Ser-250/Ser-255). synonym: "hSMAD2/iso:Long/Phos:4" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:Q15796-1, Thr-220, MOD:00047|Ser-245/Ser-250/Ser-255, MOD:00046" EXACT PRO-proteoform-std [PRO:DNx] intersection_of: PR:000000653 ! smad2 isoform Long phosphorylated 4 intersection_of: only_in_taxon NCBITaxon:9606 ! Homo sapiens relationship: has_part MOD:00046 ! O-phospho-L-serine relationship: has_part MOD:00047 ! O-phospho-L-threonine