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: 1.7 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.198 

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:  

  • 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 m ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NAD-dependent protein deacetylase sirtuin-3, mitochondrial
A
285Homo sapiensMutation(s): 0 
Gene Names: SIRT3 (SIR2L3)
EC: 3.5.1.-
Find proteins for Q9NTG7 (Homo sapiens)
Go to Gene View: SIRT3
Go to UniProtKB:  Q9NTG7
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN
Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
1NQ
Query on 1NQ
Download SDF File 
Download 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
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
1NQIC50: 4 nM BINDINGMOAD
1NQIC50: 4 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.198 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 119.320α = 90.00
b = 119.320β = 90.00
c = 44.530γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
HKL-2000data reduction
HKL-2000data collection
HKL-2000data scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

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
    Type: Database references