Phosphatidylinositol 4,5-Bisphosphate 3-Kinase Catalytic Subunit Delta Isoform

**Semantic type:** Amino Acid, Peptide, or Protein|Enzyme

**Definition:** Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform (1044 aa, ~119 kDa) is encoded by the human PIK3CD gene. This protein plays a role in both signal transduction and cell-mediated immunity.

**Synonyms:** - EC 2.7.1.153 - PI3-Kinase Subunit Delta - PI3-Kinase p110 Subunit Delta - PI3K-Delta - PI3Kdelta - PIK3 Delta - PIK3CD - Phosphatidylinositol 4,5-Bisphosphate 3-Kinase 110 kDa Catalytic Subunit Delta - Phosphatidylinositol-4,5-Bisphosphate 3-Kinase 110 kDa Catalytic Subunit Delta - Phosphatidylinositol-4,5-Bisphosphate 3-Kinase Catalytic Subunit Delta Isoform - Phosphoinositide-3-Kinase C - PtdIns-3-Kinase Subunit Delta - PtdIns-3-Kinase Subunit p110-Delta - p110-Delta - p110delta