Enzyme Tunnels and Gates as Relevant Targets in Drug Design

Authors

Marques, S. M., Daniel, L., Buryska, T., Prokop, Z., Brezovsky, J., Damborsky, J.

Source

MEDICINAL RESEARCH REVIEWS 37: 1095-1139 (2017)

Abstract

Many enzymes contain tunnels and gates that are essential to their function. Gates reversibly switch between open and closed conformations and thereby control the traffic of small molecules – substrates, products, ions, and solvent molecules – into and out of the enzyme’s structure via molecular tunnels. Many transient tunnels and gates undoubtedly remain to be identified, and their functional roles and utility as potential drug targets have received comparatively little attention. Here we describe a set of general concepts relating to the structural properties, function, and classification of these interesting structural features. In addition, we highlight the potential of enzyme tunnels and gates as targets for the binding of small molecules. The different types of binding that are possible and the potential pharmacological benefits of such targeting are discussed. Twelve examples of ligands bound to the tunnels and/or gates of clinically relevant enzymes are used to illustrate the different binding modes and to explain some new strategies for drug design. Such strategies could potentially help to overcome some of the problems facing medicinal chemists and lead to the discovery of more effective drugs.

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Citation

Marques, S. M., Daniel, L., Buryska, T., Prokop, Z., Brezovsky, J., Damborsky, J., 2017: Enzyme Tunnels and Gates as Relevant Targets in Drug Design. Medicinal Research Reviews 37: 1095-1139.

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