Crystal structure of Human LSD1

Experimental Data Snapshot

  • Resolution: 2.90 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 

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This is version 1.3 of the entry. See complete history


Lysine-Specific Histone Demethylase 1A Regulates Macrophage Polarization and Checkpoint Molecules in the Tumor Microenvironment of Triple-Negative Breast Cancer.

Tan, A.H.Y.Tu, W.McCuaig, R.Hardy, K.Donovan, T.Tsimbalyuk, S.Forwood, J.K.Rao, S.

(2019) Front Immunol 10: 1351-1351

  • DOI: https://doi.org/10.3389/fimmu.2019.01351
  • Primary Citation of Related Structures:  
    6NQM, 6NQU, 6NR5

  • PubMed Abstract: 

    Macrophages play an important role in regulating the tumor microenvironment (TME). Here we show that classical (M1) macrophage polarization reduced expression of LSD1, nuclear REST corepressor 1 (CoREST), and the zinc finger protein SNAIL. The LSD1 inhibitor phenelzine targeted both the flavin adenine dinucleotide (FAD) and CoREST binding domains of LSD1, unlike the LSD1 inhibitor GSK2879552, which only targeted the FAD domain. Phenelzine treatment reduced nuclear demethylase activity and increased transcription and expression of M1-like signatures both in vitro and in a murine triple-negative breast cancer model. Overall, the LSD1 inhibitors phenelzine and GSK2879552 are useful tools for dissecting the contribution of LSD1 demethylase activity and the nuclear LSD1-CoREST complex to switching macrophage polarization programs. These findings suggest that inhibitors must have dual FAD and CoREST targeting abilities to successfully initiate or prime macrophages toward an anti-tumor M1-like phenotype in triple-negative breast cancer.

  • Organizational Affiliation

    Epigenetics and Transcription Laboratory Melanie Swan Memorial Translational Centre, Sci-Tech, University of Canberra, Canberra, ACT, Australia.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Lysine-specific histone demethylase 1A658Homo 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 
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
FAD (Subject of Investigation/LOI)
Query on FAD

Download Ideal Coordinates CCD File 
C27 H33 N9 O15 P2
Experimental Data & Validation

Experimental Data

  • Resolution: 2.90 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 189.401α = 90
b = 189.401β = 90
c = 107.104γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
Aimlessdata scaling

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Health and Medical Research Council (NHMRC, Australia)AustraliaGNT1105747

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-13
    Type: Initial release
  • Version 1.1: 2019-07-17
    Changes: Data collection, Database references
  • Version 1.2: 2020-01-08
    Changes: Author supporting evidence
  • Version 1.3: 2023-10-11
    Changes: Data collection, Database references, Refinement description