Tags: Protein.
Phosphatidylinositol-45-bisphosphate 3-kinase catalytic subunit delta isoform also known as phosphoinositide 3-kinase (PI3K) delta isoform or p110δ is an enzyme that in humans is encoded by the PIK3CD gene.p110δ regulates immune function. In contrast to the other class IA PI3Ks p110α and p110β p110δ is principally expressed in leukocytes (white blood cells).