Anti-INPP4B Antibody

Inositol polyphosphate 4-phosphatase type II (INPP4B) is one of the enzymes involved in phosphatidylinositol signaling pathways. It removes the phosphate group at position 4 of the inositol ring from inositol 3,4-bisphosphate (1) . INPP4B can function as a tumor suppressor by inhibiting PI3K signaling. In human epithelial cells, knockdown of INPP4B expression resulted in enhanced Akt activation, anchorage-independent growth, and enhanced overall motility (2) . It is thought INPP4B may also have oncogenic functions as INPP4B-dependent PI3K signaling is mediated by SGK3 in breast cancer cells and expression of INPP4B leads to enhanced SGK3 activation and suppression of AKT phosphorylation (3) .

INPP4B antibody is human, mouse and rat reactive. At least two isoforms of INPP4B are known to exist; this antibody only detects the longer isoform. INPP4B antibody is predicted to not cross-react with INPP4A.

INPP4B antibody was raised against a 17 amino acid peptide near the amino terminus of human INPP4B. The immunogen is located within the last 50 amino acids of INPP4B.