8HAK

Cryo-EM structure of the p300 catalytic core bound to the H4K12acK16ac nucleosome, class 4 (4.5 angstrom resolution)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Epigenetic mechanisms to propagate histone acetylation by p300/CBP.

Kikuchi, M.Morita, S.Wakamori, M.Sato, S.Uchikubo-Kamo, T.Suzuki, T.Dohmae, N.Shirouzu, M.Umehara, T.

(2023) Nat Commun 14: 4103-4103

  • DOI: https://doi.org/10.1038/s41467-023-39735-4
  • Primary Citation of Related Structures:  
    8HAG, 8HAH, 8HAI, 8HAJ, 8HAK, 8HAL, 8HAM, 8HAN

  • PubMed Abstract: 

    Histone acetylation is important for the activation of gene transcription but little is known about its direct read/write mechanisms. Here, we report cryogenic electron microscopy structures in which a p300/CREB-binding protein (CBP) multidomain monomer recognizes histone H4 N-terminal tail (NT) acetylation (ac) in a nucleosome and acetylates non-H4 histone NTs within the same nucleosome. p300/CBP not only recognized H4NTac via the bromodomain pocket responsible for reading, but also interacted with the DNA minor grooves via the outside of that pocket. This directed the catalytic center of p300/CBP to one of the non-H4 histone NTs. The primary target that p300 writes by reading H4NTac was H2BNT, and H2BNTac promoted H2A-H2B dissociation from the nucleosome. We propose a model in which p300/CBP replicates histone N-terminal tail acetylation within the H3-H4 tetramer to inherit epigenetic storage, and transcribes it from the H3-H4 tetramer to the H2B-H2A dimers to activate context-dependent gene transcription through local nucleosome destabilization.


  • Organizational Affiliation

    Laboratory for Epigenetics Drug Discovery, RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, 230-0045, Japan.


Macromolecules

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H3.1
A, E
135Homo sapiensMutation(s): 0 
Gene Names: 
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Find proteins for P68431 (Homo sapiens)
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PHAROS:  P68431
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UniProt GroupP68431
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H4
B, F
102Homo sapiensMutation(s): 0 
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UniProt GroupP62805
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H2A type 1-B/E
C, G
129Homo sapiensMutation(s): 0 
Gene Names: H2AC4H2AFMHIST1H2ABH2AC8H2AFAHIST1H2AE
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H2B type 1-J
D, H
125Homo sapiensMutation(s): 0 
Gene Names: H2BC11H2BFRHIST1H2BJ
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GTEx:  ENSG00000124635 
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Histone acetyltransferase p300K [auth N]796Homo sapiensMutation(s): 0 
Gene Names: EP300P300
EC: 2.3.1.48 (PDB Primary Data), 2.3.1 (PDB Primary Data)
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GTEx:  ENSG00000100393 
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Entity ID: 5
MoleculeChains LengthOrganismImage
DNA (180-mer)I [auth J],
J [auth K]
180Homo sapiens
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Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
ALY
Query on ALY
B, F
L-PEPTIDE LINKINGC8 H16 N2 O3LYS
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Japan Society for the Promotion of Science (JSPS)Japan--

Revision History  (Full details and data files)

  • Version 1.0: 2023-05-17
    Type: Initial release
  • Version 1.1: 2023-07-26
    Changes: Database references