PROVIDENCE, R.I. [Brown University] — The chemical process known as acetylation plays a central role in cytokine receptor signal transduction – a fundamental biochemical cascade inside cells that controls the activity of antiviral and tumor-suppressing genes.A team of cell biologists led by Eugene Chin, M.D., a research professor at The Warren Alpert Medical School of Brown University and a staff researcher at Rhode Island Hospital, reports its findings in the journal Cell. Their results are surprising.