Phosphatidylinositol 3,4,5-trisphosphate-dependent Rac exchanger 1 protein (P-Rex1) (PtdIns(3,4,5)-dependent Rac exchanger 1), PREX1, KIAA1415
Functions as a RAC guanine nucleotide exchange factor (GEF), which activates the Rac proteins by exchanging bound GDP for free GTP. Its activity is synergistically activated by phosphatidylinositol 3,4,5-trisphosphate and the beta gamma subunits of heterotrimeric G protein. May function downstream of heterotrimeric G proteins in neutrophils.
Applications
Suitable for use in ELISA, Immunohistochemistry and Immunofluorescence. Other applications not tested.
Recommended Dilution
Immunohistochemistry: 1-20-1:200 Immunofluorescence: 1:50-1:200 Optimal dilutions to be determined by the researcher.
Storage and Stability
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Immunogen
Recombinant protein corresponding to aa1-44 from human PREX1.
Form
Supplied as a liquid in 0.01M PBS, pH 7.4, 0.03% Proclin 300, 50% glycerol.
Purity
Purified by Protein G affinity chromatography.
Specificity
Recognizes human PREX1.