Gai2 is a 40-41kD alpha-subunit of heterotrimeric protein that shares sequence homology with Gai3 and Gai1. All these G proteins can be ADP-ribosylated at the carboxy terminal Cys of the CAAX sequence, interfering with receptor coupling. Gai2 is expressed widely in tissues and cell lines. Activation of PLC-b by Gai-coupled receptors is the result of release of Gbg subunits from Gai. Gai2 regulates potassium channel activation. Mutation at Arg179 has been identified in tumors. This and the Q205L mutant inhibit adenylyl cyclase.
Suitable for use in Western Blot and Immunoprecipitation. Other applications not tested.
Western Blot: 0.5-1ug/ml
Optimal dilutions to be determined by the researcher.
Storage and Stability:
May be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.