4NYX

Crystal Structure of the Bromodomain of human CREBBP in complex with a dihydroquinoxalinone ligand

PDB DOI: https://doi.org/10.2210/pdb4NYX/pdb

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

Deposited: 2013-12-11 Released: 2014-01-29
Deposition Author(s): Filippakopoulos, P., Picaud, S., Felletar, I., Rooney, T.P.C., Fedorov, O., Martin, S., Monteiro, O.P., Conway, S.J., von Delft, F., Brennan, P., Arrowsmith, C.H., Edwards, A.M., Bountra, C., Knapp, S., Structural Genomics Consortium (SGC)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.10 Å
R-Value Free: 0.135
R-Value Work: 0.119
R-Value Observed: 0.120

Starting Models: experimental
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This is version 1.2 of the entry. See complete history.

Literature

Crystal Structure of the Bromodomain of human CREBBP in complex with a dihydroquinoxalinone ligand

Filippakopoulos, P., Picaud, S., Felletar, I., Rooney, T.P.C., Fedorov, O., Martin, S., Monteiro, O.P., Conway, S.J., von Delft, F., Brennan, P., Arrowsmith, C.H., Edwards, A.M., Bountra, C., Knapp, S.

To be published.

Macromolecule Content

Total Structure Weight: 14.63 kDa
Atom Count: 1,162
Modelled Residue Count: 116
Deposited Residue Count: 119
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CREB-binding protein	A	119	Homo sapiens	Mutation(s): 0 Gene Names: CBP, CREBBP EC: 2.3.1 (UniProt), 2.3.1.48 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q92793 (Homo sapiens) Explore Q92793 Go to UniProtKB: Q92793
PHAROS: Q92793 GTEx: ENSG00000005339
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q92793
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
2O4 Query on 2O4 Download Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	(3R)-N-[3-(7-methoxy-3,4-dihydroquinolin-1(2H)-yl)propyl]-3-methyl-2-oxo-1,2,3,4-tetrahydroquinoxaline-5-carboxamide C₂₃ H₂₈ N₄ O₃ FBGWKDHQIRVFSD-OAHLLOKOSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]

Binding Affinity Annotations
ID	Source	Binding Affinity
2O4	BindingDB: 4NYX	Kd: min: 0.39, max: 390 (nM) from 4 assay(s)
		IC50: min: 316, max: 1.00e+4 (nM) from 4 assay(s)
		EC50: 1.00e+4 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.10 Å
R-Value Free: 0.135
R-Value Work: 0.119
R-Value Observed: 0.120
Space Group: I 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.047	α = 90
b = 34.358	β = 97.72
c = 90.934	γ = 90

Software Package:

Software Name	Purpose
SCALA	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
DNA	data collection
XDS	data reduction

Structure Validation

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Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 2014-01-29

Deposition Author(s):

Structural Genomics Consortium (SGC)

Revision History (Full details and data files)

Version 1.0: 2014-01-29
Type: Initial release
Version 1.1: 2018-01-31
Changes: Database references, Structure summary
Version 1.2: 2023-09-20
Changes: Data collection, Database references, Derived calculations, Refinement description