Anti-CERS1 antibodies are used in the immunodetection of the protein ceramide synthase 1. In humans, the canonical protein has a reported length of 350 amino acid residues and a mass of 39.5 kDa. Its subcellular localization is in the ER. Up to 2 different isoforms have been reported for this protein. It is notably expressed in the rectum, placenta, colon, cerebral cortex, and caudate. CERS1 is reported to be a ceramide synthase that catalyzes the transfer of the acyl chain from acyl-CoA to a sphingoid base, with high selectivity toward stearoyl-CoA (octadecanoyl-CoA; C18:0-CoA). Post-translational modifications have been described, including acetylation. Synonyms for this target antigen include GDF-1, GDF1, LAG1, LASS1, UOG1, and EPM8. CERS1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of CERS1 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.