4BHW

Structural basis for autoinhibition of the acetyltransferase activity of p300

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 

wwPDB Validation   3D Report Full Report



Literature

Structure of the P300 Catalytic Core and Implications for Chromatin Targeting and Hat Regulation

Delvecchio, M., Gaucher, J., Aguilar-Gurrieri, C., Ortega, E., Panne, D.

(2013) Nat Struct Mol Biol 20: 1040

  • DOI: 10.1038/nsmb.2642
  • Primary Citation of Related Structures:  
    4BHW

  • PubMed Abstract: 

    • CBP and p300 are histone acetyltransferases (HATs) that associate with and acetylate transcriptional regulators and chromatin. Mutations in their catalytic 'cores' are linked to genetic disorders, including cancer. Here we present the 2.8-Å crystal struc ...

    CBP and p300 are histone acetyltransferases (HATs) that associate with and acetylate transcriptional regulators and chromatin. Mutations in their catalytic 'cores' are linked to genetic disorders, including cancer. Here we present the 2.8-Å crystal structure of the catalytic core of human p300 containing its bromodomain, CH2 region and HAT domain. The structure reveals that the CH2 region contains a discontinuous PHD domain interrupted by a RING domain. The bromodomain, PHD, RING and HAT domains adopt an assembled configuration with the RING domain positioned over the HAT substrate-binding pocket. Disease mutations that disrupt RING attachment led to upregulation of HAT activity, thus revealing an inhibitory role for this domain. The structure provides a starting point for understanding how chromatin-substrate targeting and HAT regulation are coupled and why mutations in the p300 core lead to dysregulation.

    Organizational Affiliation: 

    1] European Molecular Biology Laboratory, Grenoble, France. [2] Unit for Virus Host-Cell Interactions, University of Grenoble Alpes, European Molecular Biology Laboratory-Centre National de la Recherche Scientifique, Grenoble, France. [3].



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HISTONE ACETYLTRANSFERASE P300 A, B578Homo sapiensMutation(s): 1 
Gene Names: EP300, P300
EC: 2.3.1.48 (PDB Primary Data), 2.3.1 (UniProt)
Find proteins for Q09472 (Homo sapiens)
Explore Q09472 
Go to UniProtKB:  Q09472
NIH Common Fund Data Resources
PHAROS:  Q09472
GTEx:  ENSG00000100393
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
01K
Query on 01K
Download Ideal Coordinates CCD File 
A, B
[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonooxy)tetrahydrofuran-2-yl]methyl (3R,20R)-20-carbamoyl-3-hydroxy-2,2-dimethyl-4,8,14,22-tetraoxo-12-thia-5,9,15,21-tetraazatricos-1-yl dihydrogen diphosphate
C31 H53 N10 O19 P3 S
YGZKIOPJGFQDSR-VLHHDIFDSA-N		 Ligand Interaction
ZN
Query on ZN
Download Ideal Coordinates CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 153.051α = 90
b = 92.894β = 98.43
c = 123.309γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-08-14
    Type: Initial release
  • Version 1.1: 2013-08-21
    Changes: Database references
  • Version 1.2: 2013-09-18
    Changes: Database references
  • Version 2.0: 2019-04-03
    Changes: Atomic model, Data collection, Other, Source and taxonomy