Phosphatidylinositol-4-Phosphate 5-Kinase Type 1 Alpha (PIP5K1A) Antibody

Overexpression of phosphatidylinositol phosphate 5-kinase alpha (PIP5KIalpha), which synthesizes PIP2, suppresses apoptosis, whereas a kinase-deficient mutant does not. Protection by the wild-type PIP5KIalpha isaccompanied by decreases in the generation of activated caspases and of caspase 3-cleaved PARP. Protection is not mediated through PIP3 or Akt activation. An anti-apoptotic role for PIP (2) is substantiated by the finding that PIP5KIalpha is cleaved by caspase 3 during apoptosis, and cleavage inactivates PIP5KIalpha in vitro. Mutation of the P (4) position (D279A) of the PIP5KIalpha caspase 3 cleavage consensus prevents cleavage in vitro, and during apoptosis in vivo. Significantly, the caspase 3-resistant PIP5KIalpha mutant is more effective in suppressing apoptosis than the wild-type kinase. PIP2 is a direct regulator of apical and effector caspases in the death receptor and mitochondrial pathways, and PIP5KIalpha inactivation contributes to the progression of apoptosis.

• Supplier: Abbexa Ltd.
• Product #: abx033836-400UL
• Clonality: Polyclonal
• Conjugation: Unconjugated
• Host: Rabbit
• Tested Applications: ELISA, WB
• UniProt Primary AC: Q99755
• Dry Ice: No
• Availability: Shipped within 5-10 working days.
• Note: This product is for research use only.