2UXN

Structural Basis of Histone Demethylation by LSD1 Revealed by Suicide Inactivation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.72 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.241 
  • R-Value Observed: 0.242 

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Literature

Structural Basis of Histone Demethylation by Lsd1 Revealed by Suicide Inactivation.

Yang, M.Culhane, J.C.Szewczuk, L.M.Gocke, C.B.Brautigam, C.A.Tomchick, D.R.Machius, M.Cole, P.A.Yu, H.

(2007) Nat Struct Mol Biol 14: 535

  • DOI: https://doi.org/10.1038/nsmb1255
  • Primary Citation of Related Structures:  
    2UXN

  • PubMed Abstract: 

    Histone methylation regulates diverse chromatin-templated processes, including transcription. The recent discovery of the first histone lysine-specific demethylase (LSD1) has changed the long-held view that histone methylation is a permanent epigenetic mark. LSD1 is a flavin adenine dinucleotide (FAD)-dependent amine oxidase that demethylates histone H3 Lys4 (H3-K4). However, the mechanism by which LSD1 achieves its substrate specificity is unclear. We report the crystal structure of human LSD1 with a propargylamine-derivatized H3 peptide covalently tethered to FAD. H3 adopts three consecutive gamma-turns, enabling an ideal side chain spacing that places its N terminus into an anionic pocket and positions methyl-Lys4 near FAD for catalysis. The LSD1 active site cannot productively accommodate more than three residues on the N-terminal side of the methyllysine, explaining its H3-K4 specificity. The unusual backbone conformation of LSD1-bound H3 suggests a strategy for designing potent LSD1 inhibitors with therapeutic potential.


  • Organizational Affiliation

    Department of Pharmacology, The University of Texas Southwestern Medical Center, 6001 Forest Park Road, Dallas, Texas 75390, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
LYSINE-SPECIFIC HISTONE DEMETHYLASE 1666Homo sapiensMutation(s): 0 
EC: 1
UniProt & NIH Common Fund Data Resources
Find proteins for O60341 (Homo sapiens)
Explore O60341 
Go to UniProtKB:  O60341
PHAROS:  O60341
GTEx:  ENSG00000004487 
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UniProt GroupO60341
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
REST COREPRESSOR 1235Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UKL0 (Homo sapiens)
Explore Q9UKL0 
Go to UniProtKB:  Q9UKL0
PHAROS:  Q9UKL0
GTEx:  ENSG00000089902 
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UniProt GroupQ9UKL0
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  • Reference Sequence

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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
HISTONE H3.1C [auth E]21Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P68431 (Homo sapiens)
Explore P68431 
Go to UniProtKB:  P68431
PHAROS:  P68431
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP68431
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.72 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.241 
  • R-Value Observed: 0.242 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 119.949α = 90
b = 178.646β = 90
c = 234.93γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-05-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance