4IG9

Structure of NAD-dependent protein deacetylase sirtuin-1 (open state, 2.64 A)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.64 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.227 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural and Functional Analysis of Human SIRT1.

Davenport, A.M.Huber, F.M.Hoelz, A.

(2014) J.Mol.Biol. 426: 526-541

  • DOI: 10.1016/j.jmb.2013.10.009
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • SIRT1 is a NAD(+)-dependent deacetylase that plays important roles in many cellular processes. SIRT1 activity is uniquely controlled by a C-terminal regulatory segment (CTR). Here we present crystal structures of the catalytic domain of human SIRT1 i ...

    SIRT1 is a NAD(+)-dependent deacetylase that plays important roles in many cellular processes. SIRT1 activity is uniquely controlled by a C-terminal regulatory segment (CTR). Here we present crystal structures of the catalytic domain of human SIRT1 in complex with the CTR in an open apo form and a closed conformation in complex with a cofactor and a pseudo-substrate peptide. The catalytic domain adopts the canonical sirtuin fold. The CTR forms a β hairpin structure that complements the β sheet of the NAD(+)-binding domain, covering an essentially invariant hydrophobic surface. The apo form adopts a distinct open conformation, in which the smaller subdomain of SIRT1 undergoes a rotation with respect to the larger NAD(+)-binding subdomain. A biochemical analysis identifies key residues in the active site, an inhibitory role for the CTR, and distinct structural features of the CTR that mediate binding and inhibition of the SIRT1 catalytic domain.


    Organizational Affiliation

    Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NAD-dependent protein deacetylase sirtuin-1
A, C, E, G
281Homo sapiensMutation(s): 0 
Gene Names: SIRT1 (SIR2L1)
EC: 3.5.1.-
Find proteins for Q96EB6 (Homo sapiens)
Go to Gene View: SIRT1
Go to UniProtKB:  Q96EB6
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
NAD-dependent protein deacetylase sirtuin-1
B, D, F, H
31Homo sapiensMutation(s): 0 
Gene Names: SIRT1 (SIR2L1)
EC: 3.5.1.-
Find proteins for Q96EB6 (Homo sapiens)
Go to Gene View: SIRT1
Go to UniProtKB:  Q96EB6
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, C, E, G
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.64 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.227 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 115.781α = 90.00
b = 115.781β = 90.00
c = 350.511γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
SCALEPACKdata scaling
HKL-2000data reduction
SHARPphasing
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-06
    Type: Initial release
  • Version 1.1: 2014-02-05
    Type: Database references