[Term] id: PR:000063599 name: phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform sequence variant E542K (human) def: "A phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform (human) that has a Lys residue at the position equivalent to Glu-542 of the amino acid sequence represented by UniProtKB:P42336. UniProtKB:P42336, Glu-542, CHEBI:29967." [PRO:DNx, Reactome:R-HSA-1500701] comment: Category=organism-sequence. synonym: "hPIK3CA/var:E542K" EXACT PRO-short-label [PRO:DNx] synonym: "PIK3CA E542K" RELATED Reactome-displayName [PRO:DNx, Reactome:R-HSA-1500701] synonym: "UniProtKB:P42336, Glu-542, CHEBI:29967" EXACT PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-1500701 "PR:000063599 located_in GO:0005829" is_a: PR:P42336 ! phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform (human) relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens