2UXX

Human LSD1 Histone Demethylase-CoREST in complex with an FAD- tranylcypromine adduct


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.74 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.236 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Structural Basis for the Inhibition of the Lsd1 Histone Demethylase by the Antidepressant Trans-2-Phenylcyclopropylamine.

Yang, M.Culhane, J.C.Szewczuk, L.M.Jalili, P.Ball, H.L.Machius, M.Cole, P.A.Yu, H.

(2007) Biochemistry 46: 8058

  • DOI: 10.1021/bi700664y
  • Primary Citation of Related Structures:  
    2UXX

  • PubMed Abstract: 
  • Histone modifications, such as acetylation and methylation, are important epigenetic marks that regulate diverse biological processes that use chromatin as the template, including transcription. Dysregulation of histone acetylation and methylation leads to the silencing of tumor suppressor genes and contributes to cancer progression ...

    Histone modifications, such as acetylation and methylation, are important epigenetic marks that regulate diverse biological processes that use chromatin as the template, including transcription. Dysregulation of histone acetylation and methylation leads to the silencing of tumor suppressor genes and contributes to cancer progression. Inhibitors of enzymes that catalyze the addition and removal of these epigenetic marks thus have therapeutic potential for treating cancer. Lysine-specific demethylase 1 (LSD1) is the first discovered histone lysine demethylase and, with the help of its cofactor CoREST, specifically demethylates mono- and dimethylated histone H3 lysine 4 (H3-K4), thus repressing transcription. Because LSD1 belongs to the family of flavin adenine dinucleotide (FAD)-dependent amine oxidases, certain inhibitors of monoamine oxidases (MAOs), including the clinically used antidepressant trans-2-phenylcyclopropylamine (PCPA; tranylcypromine; Parnate), are also capable of inhibiting LSD1. In this study, we have further measured the kinetic parameters of the inhibition of LSD1 by PCPA and determined the crystal structure of LSD1-CoREST in the presence of PCPA. Our structural and mass spectrometry analyses are consistent with PCPA forming a covalent adduct with FAD in LSD1 that is distinct from the FAD-PCPA adduct of MAO B. The structure also reveals that the phenyl ring of the FAD-PCPA adduct in LSD1 does not form extensive interactions with active-site residues. This study thus provides the basis for designing more potent inhibitors of LSD1 that contain substitutions on the phenyl ring of PCPA to fully engage neighboring residues.


    Related Citations: 
    • Structural Basis for Corest-Dependent Demethylation of Nucleosomes by the Human Lsd1 Histone Demethylase
      Yang, M., Gocke, C.B., Luo, X., Borek, D., Tomchick, D.R., Machius, M., Otwinowski, Z., Yu, H.
      (2006) Mol Cell 23: 377

    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
LYSINE-SPECIFIC HISTONE DEMETHYLASE 1A666Homo sapiensMutation(s): 0 
Gene Names: KDM1AAOF2KDM1KIAA0601LSD1
EC: 1 (PDB Primary Data), 1.14.99.66 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for O60341 (Homo sapiens)
Explore O60341 
Go to UniProtKB:  O60341
PHAROS:  O60341
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO60341
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
REST COREPRESSOR 1B235Homo sapiensMutation(s): 0 
Gene Names: RCOR1KIAA0071RCOR
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UKL0 (Homo sapiens)
Explore Q9UKL0 
Go to UniProtKB:  Q9UKL0
PHAROS:  Q9UKL0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9UKL0
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAJ
Query on FAJ

Download Ideal Coordinates CCD File 
C [auth A]FAD-trans-2-Phenylcyclopropylamine Adduct
C36 H43 N9 O16 P2
ILGFMEOMSHHKRB-LHVNJQMSSA-N
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
D [auth A],
E [auth A]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
F [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
FA9 PDBBind:  2UXX Ki: 5.00e+5 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.74 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.236 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 120.798α = 90
b = 178.5β = 90
c = 235.88γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
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: 2007-08-21
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2013-03-27
    Changes: Atomic model, Derived calculations, Non-polymer description
  • Version 1.3: 2019-01-30
    Changes: Data collection, Experimental preparation
  • Version 1.4: 2019-02-06
    Changes: Data collection, Experimental preparation