[Term]
id: PR:000079637
name: phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform phosphorylated 1 (human)
def: "A phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform (human) that has been phosphorylated on the residue at the position equivalent to Ser-681 of the amino acid sequence represented by UniProtKB:P42336. UniProtKB:P42336, Ser-681, MOD:00046." [PRO:DNx, IEDB_epitope:912227]
comment: Category=organism-modification.
synonym: "hPIK3CA/Phos:1" EXACT PRO-short-label [PRO:DNx]
synonym: "UniProtKB:P42336, Ser-681, MOD:00046" EXACT PRO-proteoform-std [PRO:DNx]
is_a: PR:P42336 ! phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform (human)
relationship: has_part MOD:00046 ! O-phospho-L-serine
relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens