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Structural studies on Morphogen Signalling

A handful of secreted morphogen signalling molecules, acting in a spatial and gradient-dependent manner, orchestrate the development of multicellular organism. Morphogen dysfunction leads to a range of diseases and defects in adult stem cell populations. Their importance in human disease has become increasingly clear over the past decade: dysfunctions of the pathways are known to lead to severe developmental and neurological diseases, and cancer.

Our group seeks to generate mechanistic insights relevant to disease and embryonic development focusing on two fundamental morphogen signalling systems: the Hedgehog (Hh) and the bone morphogenetic protein (BMP) pathways. Extracellular Hh and BMP signals are mediated by various cell surface receptor molecules. We aim to unravel the molecular mechanisms underlying Hh and BMP morphogen gradient formation and signal transduction across the cell membrane.

To achieve this, we are using structural biology techniques such as X-ray crystallography and cryo electron microscopy to obtain molecular snapshots of Hh and BMP interactions with other proteins. We combine atomic details from in vitro structural and biophysical studies on single molecules with analyses of Hh and BMP function in living cells. Our findings will be integrated with those from developmental and cellular biologists to provide a deeper understanding of these pathways and explore translational opportunities, for example in anti-cancer therapies.

Our team

Selected publications