[Term] id: PR:000000559 name: retinoblastoma-like protein 1 isoform 1 phosphorylated 1 def: "A retinoblastoma-like protein 1 isoform 1 phosphorylated form in which the phosphorylation occurs in an RxL motif-dependent fashion by cyclin Cdk4. Example: UniProtKB:P28749-1, Thr-369, MOD:00047|Ser-640/Ser-964/Ser-975, MOD:00046." [PRO:CNA, PRO:DAN, PMID:11884610] comment: Category=modification. synonym: "RBL1/iso:1/Phos:1" EXACT PRO-short-label [PRO:DNx] is_a: PR:000000458 ! retinoblastoma-like protein 1 isoform 1 phosphorylated form relationship: has_part MOD:00046 ! O-phospho-L-serine relationship: has_part MOD:00047 ! O-phospho-L-threonine