Transmembrane signalling by a bionic receptor: biological input and output, chemical mechanism of signal transduction
Lovschall, K. B.; Monge, P.; Nielsen, L.; Stevanovic, S.; Walther, R.; Zelikin, A. N.
Show abstract
Signal transduction through sealed biological membranes is among the most important evolutionary achievements. Herein, we focus on the development of artificial signal transduction mechanisms and engineer a bionic receptor with capacity of transduction of biological signals across biological membranes using tools of chemistry. The bionic receptor described in this work exhibits similarity with the natural counterpart in the most essential characteristics: in having an exofacial ligand for signal capture, in being membrane anchored, and in featuring a releasable secondary messenger molecule, which performs enzyme activation in the endo volume. The main difference with the natural receptors is that signal transduction across the lipid bilayer was performed using the tools of organic chemistry, namely a self-immolative linker. The highest novelty of our work is that the artificial signalling cascade designed herein achieved transmembrane activation of enzymatic activity, as is the hallmark of activity by natural signalling receptors.
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