معرفی
Professor Jonathan Dworkin is a distinguished faculty member in the Department of Microbiology & Immunology at Columbia University's Vagelos College of Physicians and Surgeons. His research program investigates fundamental mechanisms of bacterial survival under stress, with particular emphasis on quiescent cell physiology and antibiotic tolerance phenomena. As a Fellow of the American Association for the Advancement of Science, he maintains an active laboratory employing multidisciplinary approaches spanning genetics, biochemistry, and single-molecule biophysics.
Dr. Dworkin's research focuses on how bacteria survive nutrient limitation and other stresses through downregulation of protein synthesis, with major contributions to understanding ribosome hibernation via ppGpp signaling and Hibernation Promoting Factor. His work reveals how these molecular mechanisms contribute to antibiotic persistence and tolerance in pathogens. Current investigations examine nucleotide signaling networks, ribosome dimerization, and Ser/Thr phosphorylation systems that regulate bacterial dormancy.
His recent publications demonstrate significant contributions to structural microbiology, bacterial signaling, and persistence mechanisms. Key findings include elucidating the structural basis of peptidoglycan synthesis complexes, demonstrating transcriptional regulation of ribosome hibernation, and characterizing how phosphorylation networks drive phenotypic variation in antibiotic tolerance. His laboratory employs innovative techniques including single-molecule imaging, in vitro reconstitution, and chemical biology approaches.
- Fellow, American Association for the Advancement of Science
Professor Dworkin maintains an active research program with substantial grant funding supporting investigations into bacterial persistence mechanisms. His laboratory serves as a training ground for graduate students and postdoctoral researchers pursuing careers in microbiology and infectious disease research. While specific student names aren't listed in available materials, his publications show consistent mentorship of junior researchers through co-authorship on significant publications. The lab maintains strong collaborations with structural biologists and chemical biologists to advance understanding of bacterial stress survival.
Dr. Dworkin's laboratory investigates fundamental questions of bacterial physiology with implications for antibiotic development. His team employs a comprehensive toolkit including genetic manipulation, biochemical reconstitution, single-molecule microscopy, and structural analysis to dissect molecular mechanisms of persistence. Current work focuses on ribosome protection systems, nucleotide signaling networks, and phosphorylation cascades that regulate bacterial dormancy states.
