Anti-RABGEF1 antibodies are used in the immunodetection of the protein RAB guanine nucleotide exchange factor 1. In humans, the canonical protein has a reported length of 491 amino acid residues and a mass of 56.9 kDa. Its subcellular localization is in the cytoplasm. Up to 3 different isoforms have been reported for this protein. RABGEF1 is known to be involved with protein phosphorylation. Post-translational modifications have been described, including ubiquitination. Synonyms for this target antigen include RAP1, rabex-5, rab5 GDP/GTP exchange factor, RAB guanine nucleotide exchange factor (GEF) 1, rabaptin-5-associated exchange factor for Rab5, and RABEX5. RABGEF1 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of RABGEF1 antibodies have been mentioned in research publications and have associated citations. Immunofluorescence is a widely used application for these antibodies. ELISA, Western Blot, Immunocytochemistry, and Immunohistochemistry are also common applications.