7B9X image
Entry Detail
PDB ID:
7B9X
Keywords:
Title:
NMR2 structure of TRIM24-BD in complex with a precursor of IACS-9571
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2020-12-14
Release Date:
2022-01-12
Method Details:
Experimental Method:
Conformers Calculated:
100
Conformers Submitted:
10
Selection Criteria:
target function
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Transcription intermediary factor 1-alpha
Chain IDs:A
Chain Length:106
Number of Molecules:1
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
NMR Molecular Replacement Provides New Insights into Binding Modes to Bromodomains of BRD4 and TRIM24.
J.Med.Chem. 65 5565 5574 (2022)
PMID: 35357834 DOI: 10.1021/acs.jmedchem.1c01703

Abstact

Structure-based drug discovery (SBDD) largely relies on structural information from X-ray crystallography because traditional NMR structure calculation methods are too time consuming to be aligned with typical drug discovery timelines. The recently developed NMR molecular replacement (NMR2) method dramatically reduces the time needed to generate ligand-protein complex structures using published structures (apo or holo) of the target protein and treating all observed NOEs as ambiguous restraints, bypassing the laborious process of obtaining sequence-specific resonance assignments for the protein target. We apply this method to two therapeutic targets, the bromodomain of TRIM24 and the second bromodomain of BRD4. We show that the NMR2 methodology can guide SBDD by rationalizing the observed SAR. We also demonstrate that new types of restraints and selective methyl labeling have the potential to dramatically reduce "time to structure" and extend the method to targets beyond the reach of traditional NMR structure elucidation.

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Primary Citation of related structures