[Term] id: PR:000045733 name: phosphatidylinositol 3-kinase regulatory subunit alpha phosphorylated 1 (human) def: "A phosphatidylinositol 3-kinase regulatory subunit alpha (human) that has been phosphorylated on the residue at the position equivalent to Tyr-688 of the amino acid sequence represented by UniProtKB:P27986-1. Example: UniProtKB:P27986-1, Tyr-688, MOD:00048." [PMID:11337495, iPTMnet:P27986] comment: Category=organism-modification. Evidence=(ECO:0000006, based on PMID:11337495). Status=unreviewed. synonym: "hPIK3R1/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:P27986, Tyr-688, MOD:00048" EXACT PRO-proteoform-std [PRO:DNx] synonym: "UniProtKB:P27986-1, Tyr-688, MOD:00048" NARROW PRO-proteoform-std [PRO:DNx] is_a: PR:P27986 ! phosphatidylinositol 3-kinase regulatory subunit alpha (human) relationship: has_part MOD:00048 ! O4'-phospho-L-tyrosine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens