G3BP1 (Ras-GTPase activating protein SH3-domain binding protein 1) directly associates with SH3 domains of GTPase activating proteins (GAPs). It was first discovered by its binding to RasGAP. G3BPs have been shown to be involved in a number of mitogenic signaling pathways. G3BP1 is also known to be over expressed in many human cancers (Kim, 2007) and its expression appears to be inversely correlated with PTEN expression (Kim, 2007). Interestingly, G3BP1, along with G3BP2, has been shown to bind to the C-terminus of p53, playing a crucial role in its activity (Kim, 2007). Furthermore, the G3BPs have two traditional RNA binding motifs.
Applications:
Suitable for use in Western Blot and Immunoprecipitation. Other applications not tested.
Recommended Dilution:
Western Blot: 1:1000
Optimal dilutions to be determined by the researcher.
Positive Control:
HeLa cell lysates.
Storage and Stability:
May be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.