STAP2 Antibody – Rabbit Polyclonal

This gene encodes the substrate of breast tumor kinase, an Src-type non-receptor tyrosine kinase. The encoded protein possesses domains and several tyrosine phosphorylation sites characteristic of adaptor proteins that mediate the interactions linking proteins involved in signal transduction pathways. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]

STAP2: a widely expressed proimflammatory adaptor protein that regulates immune and inflammatory responses. Binds and modulates a variety of molecules including Brk, CSFR, FCER1, and BCR-ABL. The interaction between STAP-2 and BCR-ABL appears to provide a growth advantage to BCR-ABL+ chronic myeloid leukemia cells. Suppression of STAP-2 expression in K562 CML cells suppressed tumor formation in mice. Enables intestinal proinflammatory responses in vivo: promotes macrophage recruitment in dextran sodium sulfate induced colitis, and promotes the ability of CXCL12-induced migration in macrophages. STAP-2 knockdown in T47D breast cancer cells induced a significant decrease of proliferation. Contains a pleckstrin homology, Src homology 2-like, and as well as a STAT3-binding domains. Two isoforms of the human protein are produced by alternative splicing.

Protein type: Adaptor/scaffold

Chromosomal Location of Human Ortholog: 19p13.3

Cellular Component: cytoplasm; plasma membrane

Molecular Function: protein binding