[Term] id: PR:000045940 name: serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform phosphorylated 1 (human) def: "A serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform (human) that has been phosphorylated on the residue at the position equivalent to Ser-28 of the amino acid sequence represented by UniProtKB:Q15172-1. Example: UniProtKB:Q15172-1, Ser-28, MOD:00046." [PMID:18957415, iPTMnet:Q15172] comment: Category=organism-modification. Evidence=(ECO:0000006, based on PMID:18957415). Status=unreviewed. synonym: "hPPP2R5A/Phos:1" EXACT PRO-short-label [PRO:DNx] synonym: "UniProtKB:Q15172, Ser-28, MOD:00046" EXACT PRO-proteoform-std [PRO:DNx] synonym: "UniProtKB:Q15172-1, Ser-28, MOD:00046" NARROW PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-9836658 "PR:000045940 located_in GO:0005829" is_a: PR:Q15172 ! serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform (human) relationship: has_part MOD:00046 ! O-phospho-L-serine relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens