Provided below are ELISA kits targeting cellular repressor of E1A stimulated genes 1, a human protein encoded by CREG1. This protein is 220 amino acids long, with a mass of 24.1 kDa, and is a member of the CREG family. This is reported to be a secreted protein. Glycosylation sites have been reported. Other alias names for this protein include: protein CREG1, and CREG.