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Process of Fragment-Based Lead Discovery-A Perspective from NMR.


ABSTRACT: Fragment-based lead discovery (FBLD) has proven fruitful during the past two decades for a variety of targets, even challenging protein-protein interaction (PPI) systems. Nuclear magnetic resonance (NMR) spectroscopy plays a vital role, from initial fragment-based screening to lead generation, because of its power to probe the intrinsically weak interactions between targets and low-molecular-weight fragments. Here, we review the NMR FBLD process from initial library construction to lead generation. We describe technical aspects regarding fragment library design, ligand- and protein-observed screening, and protein-ligand structure model generation. For weak binders, the initial hit-to-lead evolution can be guided by structural information retrieved from NMR spectroscopy, including chemical shift perturbation, transferred pseudocontact shifts, and paramagnetic relaxation enhancement. This perspective examines structure-guided optimization from weak fragment screening hits to potent leads for challenging PPI targets.

SUBMITTER: Ma R 

PROVIDER: S-EPMC6273320 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature

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Process of Fragment-Based Lead Discovery-A Perspective from NMR.

Ma Rongsheng R   Wang Pengchao P   Wu Jihui J   Ruan Ke K  

Molecules (Basel, Switzerland) 20160716 7


Fragment-based lead discovery (FBLD) has proven fruitful during the past two decades for a variety of targets, even challenging protein-protein interaction (PPI) systems. Nuclear magnetic resonance (NMR) spectroscopy plays a vital role, from initial fragment-based screening to lead generation, because of its power to probe the intrinsically weak interactions between targets and low-molecular-weight fragments. Here, we review the NMR FBLD process from initial library construction to lead generati  ...[more]

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