ARHGEF2 antibody
Quick Overview for ARHGEF2 antibody (ABIN1105439)
Target
See all ARHGEF2 AntibodiesReactivity
Host
Clonality
Conjugate
Application
Clone
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Specificity
- The monoclonal antibody B4/7 recognizes guanine nucleotide exchange factor H1 (GEF-H1).
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Cross-Reactivity (Details)
- Species reactivity (tested):Human, canine, mouse
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Purification
- Protein G
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Isotype
- IgG1
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Application Notes
- Optimal working dilution should be determined by the investigator.
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Restrictions
- For Research Use only
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Concentration
- 0.1 mg/mL
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Buffer
- PBS, 0.02 % sodium azide, 0.1 % bovine serum albumin
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Preservative
- Sodium azide
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Precaution of Use
- This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
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Storage
- 4 °C
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Storage Comment
- Store at 2 - 8 °C.
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- ARHGEF2 (rho/rac Guanine Nucleotide Exchange Factor (GEF) 2 (ARHGEF2))
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Alternative Name
- ARHGEF2
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Background
- GEFH1 is an ~110 kDa protein belonging to the Dbl family of proto-oncogenes. GEF-H1 can activate the small GTPase RhoA, but not Rac1 or Cdc42. Rho family GTPases are central regulators of epithelial tight junctions and the cytoskeleton. GEF-H1 can associate with different cytoskeletal structures, namely microtubules and the actin cytoskeleton. It has also been proposed to mediate crosstalk between the two types of filaments. Localization of GEF-H1 differs between cell types. In MRC-5 fibroblast cells, GEF-H1 localizes to stress fibers. In epithelial cells, GEF-H1 is associated with apical tight junctions and involved in regulating paracellular permeability of small hydrophilic tracers. Furthermore, its subcellular localization changes in mitotic cells, where endogenous GEF-H1 is concentrated at mitotic spindles. GEF-H1 is capable of binding to the F-actin binding junctional adaptor cingulin. Binding to cingulin inhibits GEF-H1 and results in the downregulation of RhoA and inhibition of G1/S phase transition. In low confluent cultured cells, the localization of GEF-H1 is predominantly cytoplasmic. With increasing density of the cells, free GEF-H1 is sequestered at the tight junctions by cingulin. GEF-H1 is part of the signaling pathway connecting epithelial polarity with the cell cycle, and as such involved in oncogenesis.Synonyms: GEF-H1, Guanine nucleotide exchange factor H1, KIAA0651, LFP40, Microtubule-regulated Rho-GEF, Proliferating cell nucleolar antigen p40, Rho guanine nucleotide exchange factor 2
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Gene ID
- 9181
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NCBI Accession
- NP_001155855
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UniProt
- Q92974
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Pathways
- Negative Regulation of intrinsic apoptotic Signaling
Target
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