These QC ELISA kits are immunodetection tools for measuring the levels of QC in biological samples. QC is an alias of the human QPCT gene, which encodes the protein, glutaminyl-peptide cyclotransferase. The protein is known to be important for the biosynthesis of pyroglutamyl peptides. The QPCT protein is 361 amino acid residues in length and 40.9 kilodaltons in mass. However, as many as 2 protein isoforms have been identified. It is known to be a secreted protein. This protein is known to be glycosylated. Other names for this target antigen include GCT. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.