S1 Supporting Information Smelling Sulfur: Copper and Silver Regulate the Response of Human Odorant Receptor OR2T11 to Low-Molecular-Weight Thiols Shengju Li, † Lucky Ahmed, ‡ Ruina Zhang, † Yi Pan, † Hiroaki Matsunami, § Jessica L. Burger,* ,∥ Eric Block,* ,⊥ Victor S. Batista,* ,‡ and Hanyi Zhuang* ,†,# † Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis of National Ministry of Education, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China ‡ Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States § Department of Molecular Genetics and Microbiology and Department of Neurobiology, Duke Institute for Brain Sciences, Duke University Medical Center, Durham, North Carolina 27710, United States ∥ Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, Colorado 80305, United States ⊥ Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222, United States # Institute of Health Sciences, Shanghai Jiaotong University School of Medicine/Shanghai Institutes for Biological Sciences of Chinese Academy of Sciences, Shanghai 200031, China