• Product nameAnti-GEF H1 antibody
    See all GEF H1 primary antibodies
  • Description
    Rabbit polyclonal to GEF H1
  • SpecificityDetects endogenous levels of total GEF H1
  • Tested applicationsSuitable for: ELISA, WBmore details
  • Species reactivity
    Reacts with: Mouse, Human
  • Immunogen

    Synthetic non-phosphopeptide derived from Human GEF H1 around the phosphorylation site of serine 885 (R-R-S-L-P).

  • Positive control
    • Extracts from NIH/3T3 cells.


Associated products


Our Abpromise guarantee covers the use of ab79175 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
ELISA 1/5000.
WB 1/500 - 1/1000. Predicted molecular weight: 120 kDa.


  • FunctionActivates Rho-GTPases by promoting the exchange of GDP for GTP. May be involved in epithelial barrier permeability, cell motility and polarization, dendritic spine morphology, antigen presentation, leukemic cell differentiation, cell cycle regulation, and cancer. Binds Rac-GTPases, but does not seem to promote nucleotide exchange activity toward Rac-GTPases, which was uniquely reported in PubMed:9857026. May stimulate instead the cortical activity of Rac. Inactive toward CDC42, TC10, or Ras-GTPases. Forms an intracellular sensing system along with NOD1 for the detection of microbial effectors during cell invasion by pathogens. Required for RHOA and RIP2 dependent NF-kappaB signaling pathways activation upon S.flexneri cell invasion. Involved not only in sensing peptidoglycan (PGN)-derived muropeptides through NOD1 that is independent of its GEF activity, but also in the activation of NF-kappaB by Shigella effector proteins (IpgB2 and OspB) which requires its GEF activity and the activation of RhoA.
  • Sequence similaritiesContains 1 DH (DBL-homology) domain.
    Contains 1 PH domain.
    Contains 1 phorbol-ester/DAG-type zinc finger.
  • DomainThe DH (DBL-homology) domain interacts with and promotes loading of GTP on RhoA.
    The PH (pleckstrin-homology) domain is involved in microtubule binding and targeting to tight junctions.
  • Post-translational
    Phosphorylation of Ser-886 by PAK1 induces binding to protein 14-3-3 zeta, promoting its relocation to microtubules and the inhibition of its activity. Phosphorylated by STK6 and CDK1 during mitosis, which negatively regulates its activity. Phosphorylation by MAPK1 or MAPK3 increases nucleotide exchange activity. Phosphorylation by PAK4 releases GEF-H1 from the microtubules.
  • Cellular localizationCytoplasm. Cell junction > tight junction. Golgi apparatus. Cytoplasm > cytoskeleton > spindle. Cell projection > ruffle membrane. Localizes to the tips of cortical microtubules of the mitotic spindle during cell division, and is further released upon microtubule depolymerization. Recruited into membrane ruffles induced by S.flexneri at tight junctions of polarized epithelial cells.
  • Information by UniProt
  • Database links
  • Alternative names
    • AA408978 antibody
    • ARHG2 antibody
    • ARHG2_HUMAN antibody
    • ARHGEF 2 antibody
    • ARHGEF-2 antibody
    • ARHGEF2 antibody
    • GEF antibody
    • GEF H1 antibody
    • GEF-H1 antibody
    • GEFH1 antibody
    • Guanine nucleotide exchange factor H1 antibody
    • KIAA0651 antibody
    • Lbcl1 antibody
    • Lfc antibody
    • LFP40 antibody
    • MGC95068 antibody
    • Microtubule-regulated Rho-GEF antibody
    • mKIAA0651 antibody
    • P40 antibody
    • Proliferating cell nucleolar antigen p40 antibody
    • Protein GEF-H1 antibody
    • Rho guanine nucleotide exchange factor 2 antibody
    • rho/rac guanine nucleotide exchange factor (GEF) 2 antibody
    • rho/rac guanine nucleotide exchange factor 2 antibody
    • rho/rac guanine nucleotide exchange factor antibody
    see all

Anti-GEF H1 antibody images

  • All lanes : Anti-GEF H1 antibody (ab79175) at 1/500 dilution

    Lane 1 : Extracts from NIH/3T3 cells
    Lane 2 : Extracts from NIH/3T3 cells with immunizing peptide at 5 µg

    Lysates/proteins at 15 µg per lane.

    Predicted band size : 120 kDa
    Observed band size : 110 kDa (why is the actual band size different from the predicted?)

References for Anti-GEF H1 antibody (ab79175)

This product has been referenced in:
  • Tortosa E  et al. Microtubule-associated protein 1B (MAP1B) is required for dendritic spine development and synaptic maturation. J Biol Chem 286:40638-48 (2011). WB ; Mouse . Read more (PubMed: 21984824) »

See 1 Publication for this product

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I am very sorry to hear that the ab79175 does not allow good results. We had no negative feedback for this antibody up to today. Please provide me with the experimental details (samples and protocols) and I will be please...

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