8GA2

Bromodomain of CBP liganded with inhibitor iCBP5

• PDB DOI: https://doi.org/10.2210/pdb8GA2/pdb

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


• Deposited: 2023-02-22 Released: 2024-02-28 
• Deposition Author(s): Schonbrunn, E., Bikowitz, M.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.225 
• R-Value Work: 0.191 
• R-Value Observed: 0.192 

Literature

Group 3 medulloblastoma transcriptional networks are sensitive to EP300/CBP bromodomain inhibition

Schonbrunn, E., Bikowitz, M.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

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.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content

• Total Structure Weight: 57.45 kDa 
• Atom Count: 4,225 
• Modelled Residue Count: 463 
• Deposited Residue Count: 464 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CREB-binding protein	A, B [auth D], C, D [auth B]	116	Homo sapiens	Mutation(s): 0  Gene Names: CREBBP, CBP EC: 2.3.1.48 (PDB Primary Data), 2.3.1 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for Q92793 (Homo sapiens) Explore Q92793  Go to UniProtKB:  Q92793
PHAROS:  Q92793 GTEx:  ENSG00000005339

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
YVK (Subject of Investigation/LOI)	F [auth A], G [auth D], H [auth C], I [auth B]	(6S)-6-{(5M)-5-(3,5-dimethyl-1,2-oxazol-4-yl)-1-[(1s,4R)-4-methoxycyclohexyl]-1H-benzimidazol-2-yl}-1-phenylpiperidin-2-one C30 H34 N4 O3 YQBUUWAEHZBNID-XFAFFCHDSA-N
EDO	E [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.225 
• R-Value Work: 0.191 
• R-Value Observed: 0.192 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 45.86	α = 90
b = 107.01	β = 113.98
c = 55.83	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-02-28 
Deposition Author(s): Schonbrunn, E., Bikowitz, M.

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Funding Organization	Location	Grant Number
Not funded	United States	--

Revision History  

• Version 1.0: 2024-02-28
  Type: Initial release