5NSD

Co-crystal structure of NAMPT dimer with KPT-9274


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.238 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Target identification of small molecules using large-scale CRISPR-Cas mutagenesis scanning of essential genes.

Neggers, J.E.Kwanten, B.Dierckx, T.Noguchi, H.Voet, A.Bral, L.Minner, K.Massant, B.Kint, N.Delforge, M.Vercruysse, T.Baloglu, E.Senapedis, W.Jacquemyn, M.Daelemans, D.

(2018) Nat Commun 9: 502-502

  • DOI: https://doi.org/10.1038/s41467-017-02349-8
  • Primary Citation of Related Structures:  
    5NSD

  • PubMed Abstract: 

    Unraveling the mechanism of action and molecular target of small molecules remains a major challenge in drug discovery. While many cancer drugs target genetic vulnerabilities, loss-of-function screens fail to identify essential genes in drug mechanism of action. Here, we report CRISPRres, a CRISPR-Cas-based genetic screening approach to rapidly derive and identify drug resistance mutations in essential genes. It exploits the local genetic variation created by CRISPR-Cas-induced non-homologous end-joining (NHEJ) repair to generate a wide variety of functional in-frame mutations. Using large sgRNA tiling libraries and known drug-target pairs, we validate it as a target identification approach. We apply CRISPRres to the anticancer agent KPT-9274 and identify nicotinamide phosphoribosyltransferase (NAMPT) as its main target. These results present a powerful and simple genetic approach to create many protein variants that, in combination with positive selection, can be applied to reveal the cellular target of small-molecule inhibitors.


  • Organizational Affiliation

    KU Leuven Department of Microbiology and Immunology, Laboratory of Virology and Chemotherapy, Rega Institute for Medical Research, Herestraat 49, 3000, Leuven, Belgium.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Nicotinamide phosphoribosyltransferase
A, B
497Homo sapiensMutation(s): 0 
Gene Names: NAMPTPBEFPBEF1
EC: 2.4.2.12
UniProt & NIH Common Fund Data Resources
Find proteins for P43490 (Homo sapiens)
Explore P43490 
Go to UniProtKB:  P43490
PHAROS:  P43490
GTEx:  ENSG00000105835 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP43490
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
96Q
Query on 96Q

Download Ideal Coordinates CCD File 
M [auth A],
T [auth B]
(~{E})-3-(6-azanylpyridin-3-yl)-~{N}-[[5-[4-[4,4-bis(fluoranyl)piperidin-1-yl]carbonylphenyl]-7-(4-fluorophenyl)-1-benzofuran-2-yl]methyl]prop-2-enamide
C35 H29 F3 N4 O3
MRFOPLWJZULAQD-SWGQDTFXSA-N
PO4
Query on PO4

Download Ideal Coordinates CCD File 
C [auth A],
N [auth B]
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
GOL
Query on GOL

Download Ideal Coordinates CCD File 
D [auth A]
E [auth A]
F [auth A]
G [auth A]
H [auth A]
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
O [auth B],
P [auth B],
Q [auth B],
R [auth B],
S [auth B]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.238 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.138α = 90
b = 109.167β = 96.63
c = 84.974γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-3000data reduction
HKL-3000data scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-02-14
    Type: Initial release
  • Version 1.1: 2018-03-07
    Changes: Database references