United States Biological's Pab Rb x human RAPGEF3 (CGEF1, EPAC, EPAC1, Rap Guanine Nucleotide Exchange Factor 3, Exchange Factor Directly Activated by cAMP 1, Exchange Protein Directly Activated by cAMP 1, Rap1 Guanine-nucleotide-exchange Factor Directly Activated by cAMP, cAMP-regulated Guanine Nucleotide Exchange Factor I) (APC) antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Western Blot.