3M57

SET7/9 Y245A in complex with TAF10 peptide and AdoHcy


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.197 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.6 of the entry. See complete history


Literature

SET7/9 catalytic mutants reveal the role of active site water molecules in lysine multiple methylation.

Del Rizzo, P.A.Couture, J.F.Dirk, L.M.Strunk, B.S.Roiko, M.S.Brunzelle, J.S.Houtz, R.L.Trievel, R.C.

(2010) J Biol Chem 285: 31849-31858

  • DOI: https://doi.org/10.1074/jbc.M110.114587
  • Primary Citation of Related Structures:  
    3M53, 3M54, 3M55, 3M56, 3M57, 3M58, 3M59, 3M5A

  • PubMed Abstract: 

    SET domain lysine methyltransferases (KMTs) methylate specific lysine residues in histone and non-histone substrates. These enzymes also display product specificity by catalyzing distinct degrees of methylation of the lysine ε-amino group. To elucidate the molecular mechanism underlying this specificity, we have characterized the Y245A and Y305F mutants of the human KMT SET7/9 (also known as KMT7) that alter its product specificity from a monomethyltransferase to a di- and a trimethyltransferase, respectively. Crystal structures of these mutants in complex with peptides bearing unmodified, mono-, di-, and trimethylated lysines illustrate the roles of active site water molecules in aligning the lysine ε-amino group for methyl transfer with S-adenosylmethionine. Displacement or dissociation of these solvent molecules enlarges the diameter of the active site, accommodating the increasing size of the methylated ε-amino group during successive methyl transfer reactions. Together, these results furnish new insights into the roles of active site water molecules in modulating lysine multiple methylation by SET domain KMTs and provide the first molecular snapshots of the mono-, di-, and trimethyl transfer reactions catalyzed by these enzymes.


  • Organizational Affiliation

    Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Histone-lysine N-methyltransferase SETD7261Homo sapiensMutation(s): 1 
Gene Names: KIAA1717KMT7SET7SET9SETD7
EC: 2.1.1.43 (PDB Primary Data), 2.1.1.364 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q8WTS6 (Homo sapiens)
Explore Q8WTS6 
Go to UniProtKB:  Q8WTS6
PHAROS:  Q8WTS6
GTEx:  ENSG00000145391 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8WTS6
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
TAF10 peptide11Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q12962 (Homo sapiens)
Explore Q12962 
Go to UniProtKB:  Q12962
PHAROS:  Q12962
GTEx:  ENSG00000166337 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ12962
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.197 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.636α = 90
b = 83.636β = 90
c = 96.053γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-07-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2012-11-14
    Changes: Database references
  • Version 1.3: 2017-11-08
    Changes: Refinement description
  • Version 1.4: 2021-10-06
    Changes: Database references, Derived calculations
  • Version 1.5: 2023-09-06
    Changes: Data collection, Refinement description
  • Version 1.6: 2024-10-30
    Changes: Data collection, Structure summary