Crystal Structure of LSD1 in complex with trans-2-pentafluorophenylcyclopropylamine

Experimental Data Snapshot

  • Resolution: 3.20 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.231 

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This is version 1.2 of the entry. See complete history


Structurally Designed trans-2-Phenylcyclopropylamine Derivatives Potently Inhibit Histone Demethylase LSD1/KDM1

Mimasu, S.Umezawa, N.Sato, S.Higuchi, T.Umehara, T.Yokoyama, S.

(2010) Biochemistry 49: 6494-6503

  • DOI: https://doi.org/10.1021/bi100299r
  • Primary Citation of Related Structures:  
    3ABT, 3ABU

  • PubMed Abstract: 

    Lysine-specific demethylase 1 (LSD1/KDM1) demethylates histone H3, in addition to tumor suppressor p53 and DNA methyltransferase 1 (Dnmt1), thus regulating eukaryotic gene expression by altering chromatin structure. Specific inhibitors of LSD1 are desired as anticancer agents, because LSD1 aberrations are associated with several cancers, and LSD1 inhibition restores the expression of abnormally silenced genes in cancerous cells. In this study, we designed and synthesized several candidate compounds to inhibit LSD1, based on the structures of LSD1 and monoamine oxidase B (MAO-B), in complex with an antidepressant tranylcypromine (2-PCPA) derivative. Compound S2101 exhibited stronger LSD1 inhibition than tranylcypromine and the known small LSD1 inhibitors in LSD1 demethylation assays, with a k(inact)/K(I) value of 4560 M(-1) s(-1). In comparison with tranylcypromine, the compound displayed weaker inhibition to the monoamine oxidases. The inhibition modes of the two 2-PCPA derivatives, 2-PFPA and S1201, were identified by determination of the inhibitor-bound LSD1 structures, which revealed the enhanced stability of the inhibitor-FAD adducts by their interactions with the surrounding LSD1 residues. These molecules are potential pharmaceutical candidates for cancer or latent virus infection, as well as research tools for LSD1-related biological investigations.

  • Organizational Affiliation

    RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi, Yokohama, Japan.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Lysine-specific histone demethylase 1662Homo sapiensMutation(s): 0 
Gene Names: Kazusa DNA KIAA 0601
UniProt & NIH Common Fund Data Resources
Find proteins for O60341 (Homo sapiens)
Explore O60341 
Go to UniProtKB:  O60341
PHAROS:  O60341
GTEx:  ENSG00000004487 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO60341
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on 2PF

Download Ideal Coordinates CCD File 
B [auth A][(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl]methyl (2R,3S,4S)-2,3,4-trihydroxy-5-[(1R,3R,3aS)-1-hydroxy-10,11-dimethyl-4,6-dioxo-3-(pentafluorophenyl)-2,3,5,6-tetrahydro-1H-benzo[g]pyrrolo[2,1-e]pteridin-8(4H)-yl]pentyl dihydrogen diphosphate
C36 H38 F5 N9 O16 P2
Binding Affinity Annotations 
IDSourceBinding Affinity
2PF PDBBind:  3ABT Ki: 1.70e+4 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 3.20 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.231 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 183.84α = 90
b = 183.84β = 90
c = 109.15γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data reduction
SCALEPACKdata 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: 2010-07-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2023-11-01
    Changes: Data collection, Database references, Derived calculations, Refinement description