Ready-to-use ELISA kits are available for the detection of CNrasGEF, an alias of the protein, Rap guanine nucleotide exchange factor 2. The official gene symbol is RAPGEF2. The protein, with a mass of 167.4 kDa and length of 1499 residues, is reported to be cytoplasmic and membrane-associated. It is a member of the RAPGEF2 family and may be known by other names, including: ras/Rap1-associating GEF-1, neural RAP guanine nucleotide exchange protein, Rap guanine nucleotide exchange factor (GEF) 2, RA(Ras/Rap1A-associating)-GEF, PDZ domain-containing guanine nucleotide exchange factor 1, and NRAPGEP.