Technical Data
ARHGEF4 (Rho Guanine Nucleotide Exchange Factor 4, APC-stimulated Guanine Nucleotide Exchange Factor 1, Asef, Asef1, KIAA1112)
Rho GTPases play a fundamental role in numerous cellular processes that are initiated by extracellular stimuli that work through Gucleotide exchange protein coupled receptors. Acts as guanine nucleotide exchange factor (GEF) for RhoA and RAC1 GTPases. Binding of APC may activate RAC1 GEF activity. The APC-ARHGEF4 complex seems to be involved in cell migration as well as in E-cadherin-mediated cell-cell adhesion. This protein is similar to rat collybistin protein. Alternative splicing of the gene generates two transcript variants which encode different isoforms.

Suitable for use in ELISA and Western Blot. Other applications not tested.

Recommended Dilution:
ELISA: 1:32,000
Western Blot: 2-4ug/ml, observed in human brain lysates and in transfected HEK293 on ~80kD bands
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
PabIgGAffinity Purified
100ug-20CBlue IceHumanGoat
Synthetic peptide corresponding to PWEEPAGEKPSCS, from human ARHGEF4, at N-terminal (NP_056135.2, NP_127462.1).
Purified by immunoaffinity chromatography.
Supplied as a liquid in Tris saline, 0.02% sodium azide, pH 7.3, 0.5% BSA.
Recognizes human ARHGEF4.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
1. Thiesen S, Kubart S, Ropers HH, Nothwang HG. Isolation of two novel human RhoGEFs, ARHGEF3 and ARHGEF4, in 3p13-21 and 2q22. Biochem Biophys Res Commun. 2000 Jun 24;273(1):364-9.