5KKL

Structure of ctPRC2 in complex with H3K27me3 and H3K27M

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.94 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.189 

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Literature

Response to Comment on "Structural basis of histone H3K27 trimethylation by an active polycomb repressive complex 2".

Jiao, L., Liu, X.

(2016) Science 354: 1543-1543

  • DOI: 10.1126/science.aaj2335
  • Primary Citation of Related Structures:  
    5KJH, 5KJI, 5KKL

  • PubMed Abstract: 

    • Zhang et al suggested that in the crystal structure of a polycomb repressive complex 2 from Chaetomium thermophilum (ctPRC2), a flexible linker region, but not the H3K27M cancer mutant peptide, better fits the electron density. Based on our new data, we agree with this alternative interpretation and provide the crystal structure of ctPRC2 bound to a bona fide H3K27M sequence ...

    Zhang et al suggested that in the crystal structure of a polycomb repressive complex 2 from Chaetomium thermophilum (ctPRC2), a flexible linker region, but not the H3K27M cancer mutant peptide, better fits the electron density. Based on our new data, we agree with this alternative interpretation and provide the crystal structure of ctPRC2 bound to a bona fide H3K27M sequence.

    Organizational Affiliation: 

    Cecil H. and Ida Green Center for Reproductive Biology Sciences and Division of Basic Research, Department of Obstetrics and Gynecology and Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. xin.liu@utsouthwestern.edu.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
putative polycomb protein EedA605Chaetomium thermophilum var. thermophilum DSM 1495Mutation(s): 0 
Gene Names: CTHT_0029920
UniProt
Find proteins for G0S8H7 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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Go to UniProtKB:  G0S8H7
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UniProt GroupG0S8H7
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Putative uncharacterized protein,Histone H3.1 peptide,Zinc finger domain-containing proteinB938Chaetomium thermophilum var. thermophilum DSM 1495, Homo sapiensMutation(s): 1 
Gene Names: CTHT_0053230, H3C1, CTHT_0006210
UniProt & NIH Common Fund Data Resources
Find proteins for G0RYC6 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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Go to UniProtKB:  G0RYC6
Find proteins for G0SDW4 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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Go to UniProtKB:  G0SDW4
Find proteins for P68431 (Homo sapiens)
Explore P68431 
Go to UniProtKB:  P68431
PHAROS:  P68431
GTEx:  ENSG00000197409 ENSG00000197153 ENSG00000278828 ENSG00000275714 ENSG00000273983 ENSG00000274750 ENSG00000275379 ENSG00000277775 
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UniProt GroupsG0RYC6G0SDW4P68431
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
ALA-ALA-ARG-M3L-SER-ALA-PRO-ALAC [auth D]11Homo sapiensMutation(s): 0 
Gene Names: 
UniProt & NIH Common Fund Data Resources
Find proteins for P68431 (Homo sapiens)
Explore P68431 
Go to UniProtKB:  P68431
PHAROS:  P68431
GTEx:  ENSG00000197409 ENSG00000197153 ENSG00000278828 ENSG00000275714 ENSG00000273983 ENSG00000274750 ENSG00000275379 ENSG00000277775 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP68431
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
M3L
Query on M3L		C [auth D]L-PEPTIDE LINKINGC9 H21 N2 O2LYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.94 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.189 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.254α = 90
b = 80.559β = 107.42
c = 133.22γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History 

Deposition Data

  • Deposited Date: 2016-06-21 
  • Released Date: 2017-04-19 
    • Deposition Author(s): Jiao, L., Liu, X.

Revision History  (Full details and data files)

  • Version 1.0: 2017-04-19
    Type: Initial release
  • Version 1.1: 2017-08-23
    Changes: Data collection