4JSR

Crystal Structure of human SIRT3 with ELT inhibitor 11c [N-{2-[1-(6-carbamoylthieno[3,2-d]pyrimidin-4-yl)piperidin-4-yl]ethyl}-N'-ethylthiophene-2,5-dicarboxamide]


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.200 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Discovery of Thieno[3,2-d]pyrimidine-6-carboxamides as Potent Inhibitors of SIRT1, SIRT2, and SIRT3.

Disch, J.S.Evindar, G.Chiu, C.H.Blum, C.A.Dai, H.Jin, L.Schuman, E.Lind, K.E.Belyanskaya, S.L.Deng, J.Coppo, F.Aquilani, L.Graybill, T.L.Cuozzo, J.W.Lavu, S.Mao, C.Vlasuk, G.P.Perni, R.B.

(2013) J Med Chem 56: 3666-3679

  • DOI: 10.1021/jm400204k
  • Primary Citation of Related Structures:  
    4JT8, 4JT9, 4JSR

  • PubMed Abstract: 
  • The sirtuins SIRT1, SIRT2, and SIRT3 are NAD(+) dependent deacetylases that are considered potential targets for metabolic, inflammatory, oncologic, and neurodegenerative disorders. Encoded library technology (ELT) was used to affinity screen a 1.2 milli ...

    The sirtuins SIRT1, SIRT2, and SIRT3 are NAD(+) dependent deacetylases that are considered potential targets for metabolic, inflammatory, oncologic, and neurodegenerative disorders. Encoded library technology (ELT) was used to affinity screen a 1.2 million heterocycle enriched library of DNA encoded small molecules, which identified pan-inhibitors of SIRT1/2/3 with nanomolar potency (e.g., 11c: IC50 = 3.6, 2.7, and 4.0 nM for SIRT1, SIRT2, and SIRT3, respectively). Subsequent SAR studies to improve physiochemical properties identified the potent drug like analogues 28 and 31. Crystallographic studies of 11c, 28, and 31 bound in the SIRT3 active site revealed that the common carboxamide binds in the nicotinamide C-pocket and the aliphatic portions of the inhibitors extend through the substrate channel, explaining the observable SAR. These pan SIRT1/2/3 inhibitors, representing a novel chemotype, are significantly more potent than currently available inhibitors, which makes them valuable tools for sirtuin research.


    Organizational Affiliation

    Sirtris a GSK Company, Cambridge, Massachusetts, United States. jdisch92@gmail.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NAD-dependent protein deacetylase sirtuin-3, mitochondrial A285Homo sapiensMutation(s): 0 
Gene Names: SIRT3SIR2L3
EC: 3.5.1 (PDB Primary Data), 2.3.1.286 (UniProt)
Find proteins for Q9NTG7 (Homo sapiens)
Explore Q9NTG7 
Go to UniProtKB:  Q9NTG7
NIH Common Fund Data Resources
PHAROS:  Q9NTG7
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1NQ
Query on 1NQ

Download Ideal Coordinates CCD File 
A
N-{2-[1-(6-carbamoylthieno[3,2-d]pyrimidin-4-yl)piperidin-4-yl]ethyl}-N'-ethylthiophene-2,5-dicarboxamide
C22 H26 N6 O3 S2
IXDTWYVAYLILOL-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
1NQIC50 :  4   nM  PDBBind
1NQIC50:  4   nM  BindingDB
1NQIC50:  4   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.200 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 119.32α = 90
b = 119.32β = 90
c = 44.53γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2013-03-22 
  • Released Date: 2013-04-24 
  • Deposition Author(s): Dai, H.

Revision History 

  • Version 1.0: 2013-04-24
    Type: Initial release
  • Version 1.1: 2013-07-03
    Changes: Database references