UCSF - University of California, San Francisco USA
He is Co-editor of Molecular and Cellular Proteomics. Professor of Chemistry & Pharmaceutical Chemistry, U.C. San Francisco, San Francisco, CA and Director, Biomedical Mass Spectrometry Resource, School of Pharmacy, His group has long-standing, extensive expertise and experience in mass spectrometry, proteomics and systems biology, especially focused on sequencing, identification and study of unknown proteins, and the detection, assignment and site-specific dynamics of posttranslational modifications of proteins, particularly OGlcNAcylation, phosphorylation, acetylation, methylation and ubiquitinylation. Over many years we have collaborated with the neurobiological community extensively, including structural characterization of the GPI membrane anchor of the prion protein, structure of the lysyl oxidase co-factor, identification and PTM regulation of proteins in the retrograde signaling complexes in damaged axons, the O-GlcNAc/phosphorylation dynamics at the murine synapse, identification of new proteins involved in the Nodes of Ranvier, etc.