Rap guanine nucleotide exchange factor 2 PDZ-GEF1 RA-GEF DKFZP586O1422 KIAA0313 Rap GEP PDZ domain containing guanine nucleotide exchange factor (GEF) 1 Rap guanine nucleotide exchange factor (GEF) 2 CNrasGEF NRAPGEP PDZGEF1 RA-GEF-1 RAGEF Rap-GEP nRap GEP PDZ domain-containing guanine nucleotide exchange factor 1 RA(Ras/Rap1A-associating)-GEF cyclic nucleotide ras GEF neural RAP guanine nucleotide exchange protein ras/Rap1-associating GEF-1 Cyclic nucleotide ras GEF Neural RAP guanine nucleotide exchange protein Ras/Rap1-associating GEF-1