3TOA

Human MOF crystal structure with active site lysine partially acetylated


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.246 
  • R-Value Observed: 0.247 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

MYST protein acetyltransferase activity requires active site lysine autoacetylation.

Yuan, H.Rossetto, D.Mellert, H.Dang, W.Srinivasan, M.Johnson, J.Hodawadekar, S.Ding, E.C.Speicher, K.Abshiru, N.Perry, R.Wu, J.Yang, C.Zheng, Y.G.Speicher, D.W.Thibault, P.Verreault, A.Johnson, F.B.Berger, S.L.Sternglanz, R.McMahon, S.B.Cote, J.Marmorstein, R.

(2011) EMBO J 31: 58-70

  • DOI: https://doi.org/10.1038/emboj.2011.382
  • Primary Citation of Related Structures:  
    3TO6, 3TO7, 3TO9, 3TOA, 3TOB

  • PubMed Abstract: 

    The MYST protein lysine acetyltransferases are evolutionarily conserved throughout eukaryotes and acetylate proteins to regulate diverse biological processes including gene regulation, DNA repair, cell-cycle regulation, stem cell homeostasis and development. Here, we demonstrate that MYST protein acetyltransferase activity requires active site lysine autoacetylation. The X-ray crystal structures of yeast Esa1 (yEsa1/KAT5) bound to a bisubstrate H4K16CoA inhibitor and human MOF (hMOF/KAT8/MYST1) reveal that they are autoacetylated at a strictly conserved lysine residue in MYST proteins (yEsa1-K262 and hMOF-K274) in the enzyme active site. The structure of hMOF also shows partial occupancy of K274 in the unacetylated form, revealing that the side chain reorients to a position that engages the catalytic glutamate residue and would block cognate protein substrate binding. Consistent with the structural findings, we present mass spectrometry data and biochemical experiments to demonstrate that this lysine autoacetylation on yEsa1, hMOF and its yeast orthologue, ySas2 (KAT8) occurs in solution and is required for acetylation and protein substrate binding in vitro. We also show that this autoacetylation occurs in vivo and is required for the cellular functions of these MYST proteins. These findings provide an avenue for the autoposttranslational regulation of MYST proteins that is distinct from other acetyltransferases but draws similarities to the phosphoregulation of protein kinases.


  • Organizational Affiliation

    Gene Expression and Regulation Program, The Wistar Institute, University of Pennsylvania, Philadelphia, PA 19104, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
histone acetyltransferase MYST1303Homo sapiensMutation(s): 1 
Gene Names: MYST1MOFPP7073
EC: 2.3.1.48
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H7Z6 (Homo sapiens)
Explore Q9H7Z6 
Go to UniProtKB:  Q9H7Z6
PHAROS:  Q9H7Z6
GTEx:  ENSG00000103510 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9H7Z6
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.246 
  • R-Value Observed: 0.247 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.255α = 90
b = 58.534β = 90
c = 121.501γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-11-09
    Type: Initial release
  • Version 1.1: 2012-01-18
    Changes: Database references
  • Version 1.2: 2023-09-13
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 1.3: 2023-12-06
    Changes: Data collection