5BT4

Crystal structure of BRD4 first bromodomain in complex with SGC-CBP30 chemical probe

• PDB DOI: https://doi.org/10.2210/pdb5BT4/pdb

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-06-02 Released: 2015-07-01 
• Deposition Author(s): Tallant, C., Hay, D., Krojer, T., Nunez-Alonso, G., Picaud, S., Newman, J.A., Fedorov, O., von Delft, F., Arrowsmith, C.H., Edwards, A.M., Bountra, C., Brennan, P.E., Knapp, S., Structural Genomics Consortium (SGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.214 
• R-Value Work: 0.191 
• R-Value Observed: 0.192 

Literature

Crystal structure of BRD4 first bromodomain in complex with a 3,5-dimethylisoxazol ligand

Tallant, C., Hay, D., Krojer, T., Nunez-Alonso, G., Picaud, S., Newman, J.A., Fedorov, O., von Delft, F., Arrowsmith, C.H., Edwards, A.M., Bountra, C., Brennan, P.E., Knapp, S.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Macromolecule Content

• Total Structure Weight: 46.95 kDa 
• Atom Count: 3,617 
• Modelled Residue Count: 377 
• Deposited Residue Count: 381 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bromodomain-containing protein 4	A, B, C	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 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
2LO	D [auth A], F [auth B], H [auth C]	2-[2-(3-chloro-4-methoxyphenyl)ethyl]-5-(3,5-dimethyl-1,2-oxazol-4-yl)-1-[(2S)-2-(morpholin-4-yl)propyl]-1H-benzimidazole C28 H33 Cl N4 O3 GEPYBHCJBORHCE-SFHVURJKSA-N
EDO	E [auth A], G [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
2LO	BindingDB:  5BT4	Kd: min: 850, max: 5200 (nM) from 2 assay(s)
		IC50: min: 3200, max: 2.78e+4 (nM) from 5 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.214 
• R-Value Work: 0.191 
• R-Value Observed: 0.192 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 41.923	α = 90
b = 91.801	β = 90
c = 113.761	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-07-01 
Deposition Author(s): Tallant, C., Hay, D., Krojer, T., Nunez-Alonso, G., Picaud, S., Newman, J.A., Fedorov, O., von Delft, F., Arrowsmith, C.H., Edwards, A.M., Bountra, C., Brennan, P.E., Knapp, S., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2015-07-01
  Type: Initial release