Jason Yi

Dr. Jason Yi is an Assistant Professor of Neuroscience at Washington University School of Medicine (WashU Medicine). His research focuses on understanding the molecular pathways that shape nervous system development and function, with particular emphasis on autism spectrum disorders (ASD). He leads the Yi Lab, which investigates the role of the ubiquitin ligase UBE3A in the brain and its implications for neurodevelopmental disorders.

Dr. Yi received his BS in Biochemistry and Molecular Biology from Dickinson College in 2001 and his PhD in Pharmacology from Duke University in 2009. His laboratory is broadly interested in the molecular pathways that shape nervous system development and function, with the ultimate goal of understanding how dysfunction in these pathways contributes to disease. The current focus is on autism spectrum disorders (ASD), using genetic information from human patients to guide in vitro and in vivo experiments employing biochemical, genetic manipulation, cell biological, and microscopy techniques.

Dr. Yi's research has significant clinical implications, particularly in understanding how UBE3A dysfunction relates to both Angelman syndrome (caused by lack of UBE3A activity) and autism (caused by excessive UBE3A activity). His lab discovered that a single phosphorylation event in UBE3A turns off its ubiquitin ligase activity, and that mutations in this site are linked to autism. This work bridges disease genetics with a mechanistic understanding of ASD neurobiology and aims to define developmental timepoints for ASD onset.

Dr. Yi's research has been recognized with numerous prestigious awards:

• Ruth K. Broad Biomedical Research Foundation Predoctoral Fellowship (2006)
• F32 Kirschstein National Research Service Award (2011)
• Christina Castellana Postdoctoral Fellowship (2011-2014)
• The University of North Carolina Postdoctoral Award for Research Excellence (2015)
• Bridge to Independence Award, The Simons Foundation (2017)
• NARSAD Young Investigator Award, Brain and Behavior Research Foundation (2018)
• Whitehall Foundation Research Grant (2018)
• Alfred P. Sloan Foundation Research Fellowship (2019)

Dr. Yi's research program is supported by significant grant funding from organizations including The Simons Foundation, Brain and Behavior Research Foundation, and the Whitehall Foundation. His work bridges basic molecular neuroscience with clinical implications for neurodevelopmental disorders, particularly autism spectrum disorders. Through his research, Dr. Yi is contributing to a deeper understanding of the molecular mechanisms underlying ASD, which may ultimately lead to new therapeutic approaches and interventions.

The Yi Lab maintains a collaborative research environment focused on cutting-edge neuroscience techniques. The lab combines molecular, cellular, and genetic approaches to study UBE3A function and its role in neurodevelopment. Their work utilizes patient-derived genetic information to guide experimental approaches, ensuring clinical relevance to autism spectrum disorders. Dr. Yi is also actively involved in mentoring graduate students and postdoctoral fellows, contributing to the training of the next generation of neuroscientists.