5JA4

Crystal structure of human TONSL and MCM2 HBDs binding to a histone H3-H4 tetramer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.424 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

H4K20me0 marks post-replicative chromatin and recruits the TONSL-MMS22L DNA repair complex.

Saredi, G.Huang, H.Hammond, C.M.Alabert, C.Bekker-Jensen, S.Forne, I.Reveron-Gomez, N.Foster, B.M.Mlejnkova, L.Bartke, T.Cejka, P.Mailand, N.Imhof, A.Patel, D.J.Groth, A.

(2016) Nature 534: 714-718

  • DOI: 10.1038/nature18312

  • PubMed Abstract: 
  • After DNA replication, chromosomal processes including DNA repair and transcription take place in the context of sister chromatids. While cell cycle regulation can guide these processes globally, mechanisms to distinguish pre- and post-replicative st ...

    After DNA replication, chromosomal processes including DNA repair and transcription take place in the context of sister chromatids. While cell cycle regulation can guide these processes globally, mechanisms to distinguish pre- and post-replicative states locally remain unknown. Here we reveal that new histones incorporated during DNA replication provide a signature of post-replicative chromatin, read by the human TONSL–MMS22L homologous recombination complex. We identify the TONSL ankyrin repeat domain (ARD) as a reader of histone H4 tails unmethylated at K20 (H4K20me0), which are specific to new histones incorporated during DNA replication and mark post-replicative chromatin until the G2/M phase of the cell cycle. Accordingly, TONSL–MMS22L binds new histones H3–H4 both before and after incorporation into nucleosomes, remaining on replicated chromatin until late G2/M. H4K20me0 recognition is required for TONSL–MMS22L binding to chromatin and accumulation at challenged replication forks and DNA lesions. Consequently, TONSL ARD mutants are toxic, compromising genome stability, cell viability and resistance to replication stress. Together, these data reveal a histone-reader-based mechanism for recognizing the post-replicative state, offering a new angle to understand DNA repair with the potential for targeted cancer therapy.


    Organizational Affiliation

    Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Histone H3.3
A
79Homo sapiensGene Names: H3F3A, H3F3B (H3.3A, H3F3, H3.3B)
Find proteins for P84243 (Homo sapiens)
Go to Gene View: H3F3A H3F3B
Go to UniProtKB:  P84243
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Histone H4
B
102Homo sapiensGene Names: HIST1H4A, HIST1H4B, HIST1H4C, HIST1H4D, HIST1H4E, HIST1H4F, HIST1H4H, HIST1H4I, HIST1H4J, HIST1H4K, HIST1H4L, HIST2H4A, HIST2H4B, HIST4H4 (H4/A, H4FA, H4/I, H4FI, H4/G, H4FG, H4/B, H4FB, H4/J, H4FJ, H4/C, H4FC, H4/H, H4FH, H4/M, H4FM, H4/E, H4FE, H4/D, H4FD, H4/K, H4FK, H4/N, H4F2, H4FN, HIST2H4, H4/O, H4FO)
Find proteins for P62805 (Homo sapiens)
Go to UniProtKB:  P62805
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
DNA replication licensing factor MCM2
C
70Homo sapiensGene Names: MCM2 (BM28, CCNL1, CDCL1, KIAA0030)
EC: 3.6.4.12
Find proteins for P49736 (Homo sapiens)
Go to Gene View: MCM2
Go to UniProtKB:  P49736
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Tonsoku-like protein
D
181Homo sapiensGene Names: TONSL (IKBR, NFKBIL2)
Find proteins for Q96HA7 (Homo sapiens)
Go to Gene View: TONSL
Go to UniProtKB:  Q96HA7
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
MES
Query on MES

Download SDF File 
Download CCD File 
A
2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.424 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.201 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 139.506α = 90.00
b = 139.506β = 90.00
c = 72.896γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data reduction
PHENIXrefinement
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2016-04-11 
  • Released Date: 2016-06-15 
  • Deposition Author(s): Huang, H., Patel, D.

Revision History 

  • Version 1.0: 2016-06-15
    Type: Initial release
  • Version 1.1: 2016-07-06
    Type: Database references
  • Version 1.2: 2016-07-13
    Type: Database references