6FNX image
Entry Detail
PDB ID:
6FNX
Title:
FIRST DOMAIN OF HUMAN BROMODOMAIN BRD4 IN COMPLEX WITH INHIBITOR F1
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2018-02-05
Release Date:
2018-06-20
Method Details:
Experimental Method:
Resolution:
1.19 Å
R-Value Free:
0.27
R-Value Work:
0.23
R-Value Observed:
0.23
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Bromodomain-containing protein 4
Chain IDs:A
Chain Length:127
Number of Molecules:1
Biological Source:Homo sapiens
Primary Citation
Integrated Strategy for Lead Optimization Based on Fragment Growing: The Diversity-Oriented-Target-Focused-Synthesis Approach.
J. Med. Chem. 61 5719 5732 (2018)
PMID: 29883107 DOI: 10.1021/acs.jmedchem.8b00653

Abstact

Over the past few decades, hit identification has been greatly facilitated by advances in high-throughput and fragment-based screenings. One major hurdle remaining in drug discovery is process automation of hit-to-lead (H2L) optimization. Here, we report a time- and cost-efficient integrated strategy for H2L optimization as well as a partially automated design of potent chemical probes consisting of a focused-chemical-library design and virtual screening coupled with robotic diversity-oriented de novo synthesis and automated in vitro evaluation. The virtual library is generated by combining an activated fragment, corresponding to the substructure binding to the target, with a collection of functionalized building blocks using in silico encoded chemical reactions carefully chosen from a list of one-step organic transformations relevant in medicinal chemistry. The proof of concept was demonstrated using the optimization of bromodomain inhibitors as a test case, leading to the validation of several compounds with improved affinity by several orders of magnitude.

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