To develop drugs that target a specific cell surface protein, it's helpful to know which other proteins reside in its vicinity. Geri et al. report a light-triggered labeling technique that improves the spatial resolution for this type of mapping. Specifically, they rely on a photocatalyst with a very short energy-transfer range to activate a carbene-based label that can only diffuse a short ...
The breakthrough technology, named µMap by the team of Princeton researchers and Merck scientists, uses a photocatalyst — a molecule that, when activated by light, spurs a chemical reaction — to identify spatial relationships on cell surfaces. The catalyst generates a marker that tags proteins and their molecular neighbors, which in turn enables the precise mapping of their micro-environment.
MacMillan illuminates the micro-environment, creating a new path to cancer drugs Princeton University's Dave MacMillan led the effort to create a nanoscale map of proteins and their nearest neighbors.
The technique, called MicroMapping, identifies potential protein interactions on and between cells
by Ryan Cross C&E news MARCH 11, 2020 | APPEARED IN VOLUME 98, ISSUE 10