The molecular mechanisms and biological roles of transcriptional repression by the SMRT/NCoR complex.

Every cell in the body carries the same DNA, but a protein complex called SMRT/NCoR helps decide which genes get switched off—and when that silencing goes wrong, it can contribute to diabetes, leukaemia, and hormone disorders. This project tackles a fundamental gap in biology: we know this complex turns genes off, but not exactly how it assembles, what partners it works with, or why its failure causes disease in some tissues but not others. The researchers will use three approaches in parallel—structural biology to visualise the complex’s shape, biochemistry to map its molecular handshakes, and gene-expression profiling to watch its effects in living cells. Because this is fundamental science, there is no immediate clinical application. But understanding how SMRT/NCoR represses genes could eventually point to new drug targets for conditions where gene silencing is disrupted, such as certain leukaemias or metabolic diseases. Past work on similar transcriptional regulators has already led to cancer therapies; a deeper grasp of this complex may open similar routes.