4QQ4

CW-type zinc finger of MORC3 in complex with the amino terminus of histone H3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Family-wide Characterization of Histone Binding Abilities of Human CW Domain-containing Proteins.

Liu, Y.Tempel, W.Zhang, Q.Liang, X.Loppnau, P.Qin, S.Min, J.

(2016) J Biol Chem 291: 9000-9013

  • DOI: 10.1074/jbc.M116.718973
  • Primary Citation of Related Structures:  
    4QQ4, 4O62

  • PubMed Abstract: 
  • Covalent modifications of histone N-terminal tails play a critical role in regulating chromatin structure and controlling gene expression. These modifications are controlled by histone-modifying enzymes and read out by histone-binding proteins. Numerous proteins have been identified as histone modification readers ...

    Covalent modifications of histone N-terminal tails play a critical role in regulating chromatin structure and controlling gene expression. These modifications are controlled by histone-modifying enzymes and read out by histone-binding proteins. Numerous proteins have been identified as histone modification readers. Here we report the family-wide characterization of histone binding abilities of human CW domain-containing proteins. We demonstrate that the CW domains in ZCWPW2 and MORC3/4 selectively recognize histone H3 trimethylated at Lys-4, similar to ZCWPW1 reported previously, while the MORC1/2 and LSD2 lack histone H3 Lys-4 binding ability. Our crystal structures of the CW domains of ZCWPW2 and MORC3 in complex with the histone H3 trimethylated at Lys-4 peptide reveal the molecular basis of this interaction. In each complex, two tryptophan residues in the CW domain form the "floor" and "right wall," respectively, of the methyllysine recognition cage. Our mutation results based on ZCWPW2 reveal that the right wall tryptophan residue is essential for binding, and the floor tryptophan residue enhances binding affinity. Our structural and mutational analysis highlights the conserved roles of the cage residues of CW domain across the histone methyllysine binders but also suggests why some CW domains lack histone binding ability.


    Organizational Affiliation

    From the Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada, the Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Science, Central China Normal University, Wuhan 430079, China, the Department of Physiology, University of Toronto, Toronto, Ontario M5S 1A8, Canada jr.min@utoronto.ca.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MORC family CW-type zinc finger protein 3 AB62Homo sapiensMutation(s): 0 
Gene Names: KIAA0136MORC3ZCWCC3NXP2
Find proteins for Q14149 (Homo sapiens)
Explore Q14149 
Go to UniProtKB:  Q14149
NIH Common Fund Data Resources
PHAROS:  Q14149
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H3.3 CD16Homo sapiensMutation(s): 1 
Gene Names: H3-3AH3.3AH3F3H3F3APP781H3-3BH3.3BH3F3B
Find proteins for P84243 (Homo sapiens)
Explore P84243 
Go to UniProtKB:  P84243
NIH Common Fund Data Resources
PHAROS:  P84243
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.622α = 90
b = 64.86β = 90
c = 36.015γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-08-20
    Type: Initial release
  • Version 1.1: 2014-10-29
    Changes: Structure summary
  • Version 1.2: 2016-03-30
    Changes: Database references
  • Version 1.3: 2016-05-18
    Changes: Database references