There are a number of ELISA Kits available for the measurement of transglutaminase 1, K polypeptide, another term for the human protein, transglutaminase 1. Other synonyms may include: protein-glutamine gamma-glutamyltransferase K, K polypeptide epidermal type I protein-glutamine-gamma-glutamyltransferase, TG(K), TGase K, epidermal TGase, transglutaminase 1 isoform, and transglutaminase K. It is encoded by the TGM1 gene to yield a protein 817 amino acids in length and 89.8 kDa in size. However, there are up to 2 reported isoforms. The protein, an enzyme, is categorized into the Transglutaminase superfamily, Transglutaminase family. Versions of transglutaminase 1, K polypeptide are present in other organisms, including: Mouse, Rat, Zebrafish, Frog.