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Keywords = FBLD

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28 pages, 8474 KiB  
Review
Fragment-Based Lead Discovery Strategies in Antimicrobial Drug Discovery
by Monika I. Konaklieva and Balbina J. Plotkin
Antibiotics 2023, 12(2), 315; https://doi.org/10.3390/antibiotics12020315 - 3 Feb 2023
Cited by 6 | Viewed by 3791
Abstract
Fragment-based lead discovery (FBLD) is a powerful application for developing ligands as modulators of disease targets. This approach strategy involves identification of interactions between low-molecular weight compounds (100–300 Da) and their putative targets, often with low affinity (KD ~0.1–1 mM) interactions. The [...] Read more.
Fragment-based lead discovery (FBLD) is a powerful application for developing ligands as modulators of disease targets. This approach strategy involves identification of interactions between low-molecular weight compounds (100–300 Da) and their putative targets, often with low affinity (KD ~0.1–1 mM) interactions. The focus of this screening methodology is to optimize and streamline identification of fragments with higher ligand efficiency (LE) than typical high-throughput screening. The focus of this review is on the last half decade of fragment-based drug discovery strategies that have been used for antimicrobial drug discovery. Full article
(This article belongs to the Special Issue Design and Synthesis of Novel Antimicrobial Agents)
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14 pages, 2966 KiB  
Review
Process of Fragment-Based Lead Discovery—A Perspective from NMR
by Rongsheng Ma, Pengchao Wang, Jihui Wu and Ke Ruan
Molecules 2016, 21(7), 854; https://doi.org/10.3390/molecules21070854 - 16 Jul 2016
Cited by 25 | Viewed by 11158
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Developments in Fragment-Based Lead Discovery)
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