8B96 | pdb_00008b96

Crystal structure of the human BRD4-BD1 bromodomain in complex with the inhibitor CRCM5464

• PDB DOI: https://doi.org/10.2210/pdb8B96/pdb

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-10-05 Released: 2024-04-03 
• Deposition Author(s): Carrasco, K., Betzi, S., Morelli, X.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.34 Å
• R-Value Free: 
  0.195 (Depositor), 0.212 (DCC) 
• R-Value Work: 
  0.165 (Depositor) 
• R-Value Observed: 
  0.167 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of the human BRD4-BD1 bromodomain in complex with the inhibitor CRCM5464

Carrasco, K., Betzi, S., Morelli, X.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: isothermal titration calorimetry

Macromolecule Content 

• Total Structure Weight: 15.87 kDa 
• Atom Count: 1,235 
• Modeled Residue Count: 127 
• Deposited Residue Count: 127 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bromodomain-containing protein 4	A	127	Homo sapiens	Mutation(s): 0  Gene Names: BRD4, HUNK1
UniProt & NIH Common Fund Data Resources
Find proteins for O60885 (Homo sapiens) Explore O60885  Go to UniProtKB:  O60885
PHAROS:  O60885 GTEx:  ENSG00000141867

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
Q2F (Subject of Investigation/LOI)	B [auth A]	~{N}-[[4-[[7-ethyl-2,6-bis(oxidanylidene)purin-3-yl]methyl]cyclohexyl]methyl]-3-fluoranyl-4-(oxan-4-yloxy)benzenesulfonamide C26 H34 F N5 O6 S VVDLGKLWWYITRX-IYARVYRRSA-N
DMS	D [auth A]	DIMETHYL SULFOXIDE C2 H6 O S IAZDPXIOMUYVGZ-UHFFFAOYSA-N
EDO	C [auth A], E [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.34 Å
• R-Value Free:  0.195 (Depositor), 0.212 (DCC) 
• R-Value Work:  0.165 (Depositor) 
• R-Value Observed: 0.167 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.431	α = 90
b = 47.338	β = 90
c = 58.112	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
PHASER	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2024-04-03 
Deposition Author(s): Carrasco, K., Betzi, S., Morelli, X.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2024-04-03
  Type: Initial release
  
• Version 1.1: 2026-03-04
  Changes: Refinement description, Structure summary