Anthglutin is a gamma-glutamyltransferase inhibitor isolated from Penicillium oxalicum cultures. The Ki values of Anthglutin for different enzymes are: porcine kidney enzyme 5.7 μM, human kidney enzyme 18.3 μM, human liver soluble enzyme 13.6 μM, and conjugated enzyme 10.2 μM. Anthglutin had no significant effect on intestinal absorption of methionine in rats[1].
