PI3K-C2α Protein, 10 µg

N-terminal 6His-tagged recombinant human PI3K-C2α amino acids 299–end.

Also available in 250μg size as catalog # 14-906M - Call for pricing and availability.

Routinely evaluated in the PIProfiler.

161kDa

10 μg of enzyme in 10.6 μl of 50 mM Tris/HCl, pH 7.5, 300 mM NaCl, 0.1 mM EGTA, 0.03% Brij-35, 270 mM sucrose, 0.2 mM PMSF, 1mM benzamidine, 0.1% 2-mercaptoethanol, 20 mM β-glycerophosphate, 0.25 mM Na₃VO₄, 10 mM NaF. Frozen solution.

6 months at -70°C

For Specific Activity data, refer to the Certificate of Analysis for individual lots of this enzyme.

FUNCTION: Phosphorylates PtdIns, PtdIns4P and PtdIns(4,5)P2. May play a role in clathrin-coated endocytic vesicle formation and EGF signaling cascade. May be involved in mitosis and UV-induced damage response. May be a downstream effector in insulin signaling cascade.
CATALYTIC ACTIVITY: ATP + 1-phosphatidyl-1D-myo-inositol 4-phosphate = ADP + 1-phosphatidyl-1D-myo-inositol 3,4-bisphosphate.
COFACTOR: Calcium or magnesium. Manganese cannot be used.
ENZYME REGULATION: Activated by insulin. Only slightly inhibited by wortmannin and LY294002. Activated by clathrin.
Subunit structure: Part of a complex with ERBB2 and EGFR. Interacts with clathrin trimers.
SUBCELLULAR LOCATION: Cell membrane. Golgi apparatus. Cytoplasmic vesicle › clathrin-coated vesicle. Nucleus. Cytoplasm. Associated with RNA-containing structures.
TISSUE SPECIFICITY: Expressed in columnar and transitional epithelia, mononuclear cells, smooth muscle cells, and endothelial cells lining capillaries and small venules (at protein level). Ubiquitously expressed, with highest levels in heart, placenta and ovary, and lowest levels in the kidney.
SIMILARITY: Belongs to the PI3/PI4-kinase family. Contains 1 C2 domain. Contains 1 PI3K/PI4K domain. Contains 1 PX (phox homology) domain.

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