4L3O

Crystal Structure of SIRT2 in complex with the macrocyclic peptide S2iL5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.52 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.216 

Starting Model: experimental
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Literature

Structural Basis for Potent Inhibition of SIRT2 Deacetylase by a Macrocyclic Peptide Inducing Dynamic Structural Change

Yamagata, K.Goto, Y.Nishimasu, H.Morimoto, J.Ishitani, R.Dohmae, N.Takeda, N.Nagai, R.Komuro, I.Suga, H.Nureki, O.

(2013) Structure 22: 345-352

  • DOI: https://doi.org/10.1016/j.str.2013.12.001
  • Primary Citation of Related Structures:  
    4L3O

  • PubMed Abstract: 

    SIRT2 deacetylates specific acetyllysine residues in diverse proteins and is implicated in a variety of cellular processes. SIRT2 inhibition thus has potentials to treat human diseases such as cancers and neurodegenerative disorders. We have recently developed a series of ε-trifluoroacetyllysine-containing macrocyclic peptides, which inhibit the SIRT2 activity more potently than most other known inhibitors. Here, we report the crystal structure of human SIRT2 in complex with a macrocyclic peptide inhibitor, S2iL5, at 2.5 Å resolution. The structure revealed that S2iL5 binds to the active site of SIRT2 through extensive interactions. A structural comparison of the SIRT2-S2iL5 complex with SIRT2 in the free form, and in complex with ADP-ribose, revealed that S2iL5 induces an open-to-closed domain movement and an unexpected helix-to-coil transition in a SIRT2-specific region. Our findings unveil the potential of macrocyclic peptides to bind target proteins by inducing dynamic structural changes.


  • Organizational Affiliation

    Department of Cardiology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
NAD-dependent protein deacetylase sirtuin-2
A, B, C, D
302Homo sapiensMutation(s): 0 
Gene Names: SIRT2
EC: 3.5.1 (PDB Primary Data), 2.3.1 (UniProt), 2.3.1.286 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q8IXJ6 (Homo sapiens)
Explore Q8IXJ6 
Go to UniProtKB:  Q8IXJ6
PHAROS:  Q8IXJ6
GTEx:  ENSG00000068903 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8IXJ6
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
cyclic peptide S2iL5
E, F, G, H
16N/AMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
MES
Query on MES

Download Ideal Coordinates CCD File 
J [auth A],
L [auth B],
O [auth C],
S [auth D]
2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
ZN
Query on ZN

Download Ideal Coordinates CCD File 
I [auth A],
K [auth B],
N [auth C],
R [auth D]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
EDO
Query on EDO

Download Ideal Coordinates CCD File 
M [auth B],
P [auth C],
Q [auth C],
T [auth G]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
FAK
Query on FAK
E, F, G, H
L-PEPTIDE LINKINGC8 H13 F3 N2 O3LYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.52 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.216 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.18α = 90
b = 135.613β = 90
c = 148.83γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-02-19
    Type: Initial release
  • Version 1.1: 2023-11-08
    Changes: Data collection, Database references, Derived calculations, Refinement description