The tell-tale smell of rotten eggs is often a sign that sulfur is at work. Sulfur is a key element in proteins such as keratin, which makes hair and nails tough, and used in agriculture to make fertilizers. Researchers at UCD Conway Institute in University College Dublin have shown for the first time that the yeast, Candida parapsilosis, scavenges and regulates sulfur metabolism in an unusual way. The tell-tale smell of rotten eggs is often a sign that sulfur is at work. Sulfur is a key element in proteins such as keratin, which makes hair and nails tough, and used in agriculture to make fertilizers. Researchers at UCD Conway Institute in University College Dublin have shown for the first time that the yeast, Candida parapsilosis, scavenges and regulates sulfur metabolism in an unusual way. Cell & Microbiology Molecular & Computational biology Phys.org – latest science and technology news stories