Glutathione, Sulphur and Redox have been one of the major interests of the lab. Glutathione is the predominant redox buffer in living cells, and is an unusual tripeptide that is made in the cell through non-ribosomal synthesis. Over the years we have discovered many enzymes and transporters in the glutathione and Sulphur pathways that has contributed to our understanding of how glutathione and redox homeostasis are maintained. The model systems that we use are yeasts.