9NNT image
Deposition Date 2025-03-06
Release Date 2026-02-11
Last Version Date 2026-03-04
Entry Detail
PDB ID:
9NNT
Keywords:
TRANSCRIPTION
Title:
BET BRD4-BD1 in complex with peptide 6.1
Biological Source:
Source Organism(s):
Homo sapiens (Taxon ID: 9606)
synthetic construct (Taxon ID: 32630)
Expression System(s):
Escherichia coli bl21(de3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.59 Å
R-Value Free:
0.21
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 1 21 1
9NNT validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Bromodomain-containing protein 4
Gene (Uniprot):BRD4
Chain IDs:A, B, C
Chain Length:129
Number of Molecules:3
Biological Source:Homo sapiens
UniProt ID:O60885 Pfam ID:PF00439
Polymer Type:polypeptide(L)
Molecule:peptide 6.1
Chain IDs:D, E
Chain Length:10
Number of Molecules:2
Biological Source:synthetic construct
Primary Citation
The effect of peptide size on target affinity in mRNA display-derived macrocyclic peptides.
Chem.Commun.(Camb.) 62 4028 4031 (2026)
PMID: 41614404 DOI: 10.1039/d5cc06167a

Abstact

The large size of macrocyclic peptides discovered by mRNA display can hinder therapeutic development. Using size-restricted RaPID libraries and analysis of 40 published datasets, we show that potent binders are more reliably identified from libraries with at least nine randomised residues, providing guidance for mRNA display screen design.

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Protein

Chemical

Disease

Primary Citation of related structures
9NNT
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