8FXN

Bromodomain of CBP liganded with iCBP7

• PDB DOI: https://doi.org/10.2210/pdb8FXN/pdb

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


• Deposited: 2023-01-25 Released: 2024-02-07 
• Deposition Author(s): Schonbrunn, E., Bikowitz, M.
• Funding Organization(s): Not funded

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.242 
• R-Value Work: 0.197 
• R-Value Observed: 0.200 

Starting Model: experimental

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

Macromolecule Content

• Total Structure Weight: 14.61 kDa 
• Atom Count: 1,062 
• Modelled Residue Count: 114 
• Deposited Residue Count: 116 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CREB-binding protein	A	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
YN0 (Subject of Investigation/LOI)	B [auth A]	tert-butyl {(1R,4s)-4-[(5M)-2-[(2S)-1-(3-tert-butylphenyl)-6-oxopiperidin-2-yl]-5-(3,5-dimethyl-1,2-oxazol-4-yl)-1H-benzimidazol-1-yl]cyclohexyl}carbamate C38 H49 N5 O4 XCKDYTZQUKRVJL-NGKQEFFVSA-N
EDO	C [auth A], D [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.242 
• R-Value Work: 0.197 
• R-Value Observed: 0.200 
• Space Group: P 3₂

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.47	α = 90
b = 65.47	β = 90
c = 24.4	γ = 120

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: 2024-02-07 
Deposition Author(s): Schonbrunn, E., Bikowitz, M.

---

Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2024-02-07
  Type: Initial release