Peter Cheung

Peter Cheung is an Associate Professor in the Department of Biology at York University, part of the Faculty of Science. His research focuses on understanding how histone proteins and their post-translational modifications regulate gene expression, particularly in the context of cancer development.

His work investigates histone phosphorylation, methylation, and ubiquitylation, exploring how these modifications interact to control gene activation and chromatin structure. Key projects include studying H3 phosphorylation's role in immediate-early gene activation via MAP kinase pathways and the epigenetic functions of the essential histone variant H2A.Z.

Notable contributions include demonstrating synergistic effects between histone phosphorylation and acetylation, and linking H2A.Z ubiquitination to heterochromatin silencing. His publications emphasize chromatin dynamics in cancer and the Histone Code Hypothesis.