Description
Product Characteristics:
PDZ-GEF1 is a 1,499 amino acid cell membrane protein that functions as a guanine nucleotide exchange factor for Rap 1A, Rap 1B and Rap 2B GTPases. Expressed at highest levels in brain, PDZ-GEF1 is found at low levels in placenta, heart, lung and kidney, and undergoes post-translational phosphorylation following DNA damage. PDZ-GEF1 interacts with MAGI-2 and contains one Ras-GEF domain, a Ras-associating domain, one PDZ (DHR) domain, a single N-terminal Ras-GEF domain and a cyclic nucleotide-binding domain. The gene encoding PDZ-GEF1 maps to human chromosome 4q32.1.
Subcellular location: Cytoplasm, Cell membrane
Synonyms: KIAA0313, Neural RAP guanine nucleotide exchange protein, nRap GEP, NRAPGEP, PDZ domain containing guanine nucleotide exchange factor 1, PDZ domain-containing guanine nucleotide exchange factor 1, PDZ GEF1, PDZ-GEF1, PDZGEF1, RA GEF, RA-GEF, Rap guanine nucleotide exchange factor 2, Rapgef2, RPGF2_HUMAN.
Target Information: Members of the RAS (see HRAS\, MIM 190020) subfamily of GTPases function in signal transduction as GTP/GDP-regulated switches that cycle between inactive GDP- and active GTP-bound states. Guanine nucleotide exchange factors (GEFs), such as RAPGEF2, serve as RAS activators by promoting acquisition of GTP to maintain the active GTP-bound state and are the key link between cell surface receptors and RAS activation (Rebhun et al., 2000 [PubMed 10934204]).[supplied by OMIM, Mar 2008]