DsbC, or Glutathione S-transferase kappa 1, is a human gene encoded by GSTK1. It may also be known as: GST 13-13; GST class-kappa; GSTK1-1; hGSTK1; Glutathione S-transferase subunit 13; Glutathione S-transferase kappa 1 ; GST13; GST13-13. The encoded protein is an enzyme with an amino acid length of 226 and a mass of 25.5 kDa. DsbC is a member of the GST superfamily, Kappa family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Nematode, Chicken.