Key features and details
- Rabbit polyclonal to GEF H1
- Suitable for: IHC-P
- Reacts with: Human
- Isotype: IgG
Product nameAnti-GEF H1 antibody
See all GEF H1 primary antibodies
DescriptionRabbit polyclonal to GEF H1
Tested applicationsSuitable for: IHC-Pmore details
Species reactivityReacts with: Human
Predicted to work with: Rabbit, Guinea pig, Cow, Pig, Chimpanzee, Rhesus monkey, Gorilla, Orangutan, Elephant
Synthetic peptide corresponding to a region between residue 625-675 of Human GEF H1 (CAH72629.1).
- Human stomach adenocarcinoma
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Storage bufferPreservative: 0.09% Sodium azide
Constituents: Tris buffered saline, 0.1% BSA
Concentration information loading...
PurityImmunogen affinity purified
Our Abpromise guarantee covers the use of ab103558 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|IHC-P||1/100 - 1/500.|
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.
modificationsPhosphorylation 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
- AA408978 antibody
- ARHG2 antibody
- ARHG2_HUMAN antibody
ab103558 has been referenced in 1 publication.
- Schossleitner K et al. Evidence That Cingulin Regulates Endothelial Barrier Function In Vitro and In Vivo. Arterioscler Thromb Vasc Biol 36:647-54 (2016). PubMed: 26821949