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You are here:Home » Antibodies » Antibodies-GTPase, Rab, Ras, Rho Proteins » Anti -Rho Guanine Nucleotide Exchange Factor H1 (ARHGEF-H1, GEF-H1)

Anti -Rho Guanine Nucleotide Exchange Factor H1 (ARHGEF-H1, GEF-H1)


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Clone Host Grade Applications
Monoclonal Rabbit Supernatant E B IP
Rho family small GTPases regulate processes such as cell migration, adhesion, proliferation and differentiation. They are activated by guanine nucleotide exchange factors (GEFs), which catalyze the exchange of GDP for GTP. GEF-H1 is a Rho GEF that localizes to microtubules and regulates Rho activity in response to microtubule destabilization (1). Loss of interaction between GEF-H1 and microtubules leads to activation of Rho (2). PAK1 phosphorylates GEF-H1 at Ser885, a site located in the 14-3-3 binding motif. Phosphorylation at this site is required for 14-3-3 binding and correlated to recruitment of 14-3-3 and GEF-H1 to microtubules (3). GEF-H1 has also been shown to localize to tight junctions and modulate polarized cell permeability (4,5). GEF-H1 is inactivated by binding to cingulin at epithelial tight junctions, inactivating RhoA and leading to G1/S arrest (5).
Catalog #R1998-26
ApplicationsSuitable for use in ELISA, Western Blot and Immunoprecipitation. Other applications not tested.
Recommended DilutionWestern Blot: 1:1000 Incubate membrane with diluted antibody in 5% BSA, 1X TBS, 0.1% Tween-20 at 4°C with gentle shaking, overnight.
Immunoprecipitation: 1:50
Optimal dilutions to be determined by the researcher.
Storage and StabilityMay be stored at 4°C for short-term only. For long-term storage, store at -20°C. Aliquots are stable for at least 12 months at -20°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.
Clone TypeMonoclonal
Clone No7H57
ConcentrationNot determined
FormSupplied as a liquid in 10mM HEPES, pH 7.5, 150mM sodium chloride, 0.1mg/ml BSA, <0.02% sodium azide, 50% glycerol .
ImmunogenSynthetic peptide corresponding to the sequence of human GEF-H1 (KLH).
SpecificityRecognizes endogenous levels of total human GEF-H1 protein at ~120kD. Species Crossreactivity: hamster, monkey, mouse and rat.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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