WB, IP, IF-IC
H M R Mk
Endogenous
195
Rabbit IgG
#P46940
8826
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:100 |
| Immunofluorescence (Immunocytochemistry) | 1:800 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human, Mouse, Rat, Monkey
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Val1272 of human IQGAP1 protein.
Background
IQGAPs are scaffolding proteins involved in mediating cytoskeletal function. They contain multiple protein interaction domains and bind to a growing number of molecules including actin, myosin light chain, calmodulin, E-cadherin, and β-catenin (reviewed in 1). Through their GAP-related domains, they bind the small GTPases Rac1 and cdc42. IQGAPs lack GAP activity, however, and regulate small GTPases by stabilizing their GTP-bound (active) forms (2,3). Research studies have shown that the function and distribution of the IQGAP proteins widely vary. IQGAP1 is ubiquitously expressed and has been found to interact with APC (4) and the CLIP170 complex (5) in response to small GTPases, promoting cell polarization and migration. Additional research studies have suggested that IQGAP1 could play a part in the invasiveness of some cancers (6-8). IQGAP2, which is about 60% identical to IQGAP1, is expressed primarily in liver (3), but lower levels have been detected in the prostate, kidney, thyroid, stomach, and testis (9,10). Research studies have shown that IQGAP2 displays tumor suppressor properties (7). Less is known about the function of IQGAP3, but this protein is present in the lung, brain, small intestine, and testis (9) and is only expressed in proliferating cells (11), suggesting a role in cell growth and division.
- Briggs, M.W. and Sacks, D.B. (2003) EMBO Rep 4, 571-4.
- Ho, Y.D. et al. (1999) J Biol Chem 274, 464-70.
- Brill, S. et al. (1996) Mol Cell Biol 16, 4869-78.
- Watanabe, T. et al. (2004) Dev Cell 7, 871-83.
- Fukata, M. et al. (2002) Cell 109, 873-85.
- Chew, C.S. et al. (2005) Am J Physiol Gastrointest Liver Physiol 288, G376-87.
- Jin, S.H. et al. (2008) Int J Cancer 122, 1040-6.
- Liu, Z. et al. (2010) Clin Cancer Res 16, 6009-18.
- Wang, S. et al. (2007) J Cell Sci 120, 567-77.
- Schmidt, V.A. et al. (2003) Blood 101, 3021-8.
- Nojima, H. et al. (2008) Nat Cell Biol 10, 971-8.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Western Blot Buffer
IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v nonfat dry milk, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
Applications Key
WB: Western Blotting IP: Immunoprecipitation IF-IC: Immunofluorescence (Immunocytochemistry)
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
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