Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Hetero 8-mer - A2B2C2D2 Pseudo Symmetry: Cyclic - C2  (3D View)
Pseudo Stoichiometry: Hetero 8-mer -A4B2C2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 48897.54 
• Atom Count: 2932 
• Residue Count: 432 
• Unique protein chains: 4

5JA4

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

• DOI: 10.2210/pdb5JA4/pdb

• Classification: CHAPERONE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3), Escherichia coli


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

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Experimental Data Snapshot

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

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

• PubMed: 27338793 
• 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 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.

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Organizational Affiliation: 

Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.,The Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Denmark.,MRC Clinical Sciences Centre, Imperial College London, United Kingdom.,Institute of Molecular Cancer Research, University of Zurich, Switzerland.,Department of Molecular Biology, Biomedical Center and Center for Integrated Protein Science Munich, Ludwig-Maximilians University, Munich, Germany.,Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY, 10065, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Histone H3.3	A	79	Homo sapiens	Mutation(s): 0  Gene Names: H3-3A, H3-3B (H3.3A, H3F3, H3F3A, H3.3B, H3F3B)
Find proteins for P84243 (Homo sapiens) Go to UniProtKB:  P84243

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
Histone H4	B	102	Homo sapiens	Mutation(s): 0  Gene Names: H4C1, H4C2, H4C3, H4C4, H4C5, H4C6, H4C8, H4C9, H4C11, H4C12, H4C13, H4C14, H4C15, H4-16 (H4/A, H4FA, HIST1H4A, H4/I, H4FI, HIST1H4B, H4/G, H4FG, HIST1H4C, H4/B, H4FB, HIST1H4D, H4/J, H4FJ, HIST1H4E, H4/C, H4FC, HIST1H4F, H4/H, H4FH, HIST1H4H, H4/M, H4FM, HIST1H4I, H4/E, H4FE, HIST1H4J, H4/D, H4FD, HIST1H4K, H4/K, H4FK, HIST1H4L, H4/N, H4F2, H4FN, HIST2H4, HIST2H4A, H4/O, H4FO, HIST2H4B, HIST4H4)
Find proteins for P62805 (Homo sapiens) Go to UniProtKB:  P62805

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
DNA replication licensing factor MCM2	C	70	Homo sapiens	Mutation(s): 0  Gene 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
Molecule	Chains	Sequence Length	Organism	Details
Tonsoku-like protein	D	181	Homo sapiens	Mutation(s): 0  Gene Names: TONSL (IKBR, NFKBIL2)
Find proteins for Q96HA7 (Homo sapiens) Go to Gene View: TONSL Go to UniProtKB:  Q96HA7

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
GOL	B	GLYCEROL GLYCERIN; PROPANE-1,2,3-TRIOL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
MES	A	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N

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 = 139.506	α = 90.00
b = 139.506	β = 90.00
c = 72.896	γ = 120.00

Software Package:

Software Name	Purpose
HKL-2000	data reduction
PHENIX	refinement
HKL-2000	data scaling
PHASER	phasing

Structure Validation

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