4BAY

Phosphomimetic mutant of LSD1-8a splicing variant in complex with CoREST


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Phosphorylation of Neuronal Lysine-Specific Demethylase 1Lsd1/Kdm1A Impairs Transcriptional Repression by Regulating Interaction with Corest and Histone Deacetylases Hdac1/2.

Toffolo, E.Rusconi, F.Paganini, L.Tortorici, M.Pilotto, S.Heise, C.Verpelli, C.Tedeschi, G.Maffioli, E.Sala, C.Mattevi, A.Battaglioli, E.

(2014) J.Neurochem. 128: 616

  • DOI: 10.1111/jnc.12457

  • PubMed Abstract: 
  • Epigenetic mechanisms play important roles in brain development, orchestrating proliferation, differentiation, and morphogenesis. Lysine-Specific Demethylase 1 (LSD1 also known as KDM1A and AOF2) is a histone modifier involved in transcriptional repr ...

    Epigenetic mechanisms play important roles in brain development, orchestrating proliferation, differentiation, and morphogenesis. Lysine-Specific Demethylase 1 (LSD1 also known as KDM1A and AOF2) is a histone modifier involved in transcriptional repression, forming a stable core complex with the corepressors corepressor of REST (CoREST) and histone deacetylases (HDAC1/2). Importantly, in the mammalian CNS, neuronal LSD1-8a, an alternative splicing isoform of LSD1 including the mini-exon E8a, sets alongside LSD1 and is capable of enhancing neurite growth and morphogenesis. Here, we describe that the morphogenic properties of neuronal LSD1-8a require switching off repressive activity and this negative modulation is mediated in vivo by phosphorylation of the Thr369b residue coded by exon E8a. Three-dimensional crystal structure analysis using a phospho-mimetic mutant (Thr369bAsp), indicate that phosphorylation affects the residues surrounding the exon E8a-coded amino acids, causing a local conformational change. We suggest that phosphorylation, without affecting demethylase activity, causes in neurons CoREST and HDAC1/2 corepressors detachment from LSD1-8a and impairs neuronal LSD1-8a repressive activity. In neurons, Thr369b phosphorylation is required for morphogenic activity, converting neuronal LSD1-8a in a dominant-negative isoform, challenging LSD1-mediated transcriptional repression on target genes.


    Organizational Affiliation

    Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LYSINE-SPECIFIC HISTONE DEMETHYLASE 1A
A
686Homo sapiensMutation(s): 1 
Gene Names: KDM1A (AOF2, KDM1, KIAA0601, LSD1)
EC: 1.-.-.-
Find proteins for O60341 (Homo sapiens)
Go to Gene View: KDM1A
Go to UniProtKB:  O60341
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
REST COREPRESSOR 1
B
133Homo sapiensMutation(s): 0 
Gene Names: RCOR1 (KIAA0071, RCOR)
Find proteins for Q9UKL0 (Homo sapiens)
Go to Gene View: RCOR1
Go to UniProtKB:  Q9UKL0
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

Download SDF File 
Download CCD File 
A
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.209 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 117.980α = 90.00
b = 179.120β = 90.00
c = 233.640γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-27
    Type: Initial release
  • Version 1.1: 2014-03-19
    Type: Database references