5U2N

Crystal structure of human NAMPT with A-1326133


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.164 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Discovery and Characterization of Novel Nonsubstrate and Substrate NAMPT Inhibitors.

Wilsbacher, J.L.Cheng, M.Cheng, D.Trammell, S.A.J.Shi, Y.Guo, J.Koeniger, S.L.Kovar, P.J.He, Y.Selvaraju, S.Heyman, H.R.Sorensen, B.K.Clark, R.F.Hansen, T.M.Longenecker, K.L.Raich, D.Korepanova, A.V.Cepa, S.Towne, D.L.Abraham, V.C.Tang, H.Richardson, P.L.McLoughlin, S.M.Badagnani, I.Curtin, M.L.Michaelides, M.R.Maag, D.Buchanan, F.G.Chiang, G.G.Gao, W.Rosenberg, S.H.Brenner, C.Tse, C.

(2017) Mol. Cancer Ther. 16: 1236-1245

  • DOI: 10.1158/1535-7163.MCT-16-0819
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Cancer cells are highly reliant on NAD+-dependent processes, including glucose metabolism, calcium signaling, DNA repair, and regulation of gene expression. Nicotinamide phosphoribosyltransferase (NAMPT), the rate-limiting enzyme for NAD+ salvage fro ...

    Cancer cells are highly reliant on NAD+-dependent processes, including glucose metabolism, calcium signaling, DNA repair, and regulation of gene expression. Nicotinamide phosphoribosyltransferase (NAMPT), the rate-limiting enzyme for NAD+ salvage from nicotinamide, has been investigated as a target for anticancer therapy. Known NAMPT inhibitors with potent cell activity are composed of a nitrogen-containing aromatic group, which is phosphoribosylated by the enzyme. Here, we identified two novel types of NAM-competitive NAMPT inhibitors, only one of which contains a modifiable, aromatic nitrogen that could be a phosphoribosyl acceptor. Both types of compound effectively deplete cellular NAD+, and subsequently ATP, and produce cell death when NAMPT is inhibited in cultured cells for more than 48 hours. Careful characterization of the kinetics of NAMPT inhibition in vivo allowed us to optimize dosing to produce sufficient NAD+ depletion over time that resulted in efficacy in an HCT116 xenograft model. Our data demonstrate that direct phosphoribosylation of competitive inhibitors by the NAMPT enzyme is not required for potent in vitro cellular activity or in vivo antitumor efficacy. Mol Cancer Ther; 16(7); 1236-45. ©2017 AACR.


    Organizational Affiliation

    AbbVie Inc., North Chicago, Illinois. julie.wilsbacher@abbvie.com.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nicotinamide phosphoribosyltransferase
A, B
477Homo sapiensMutation(s): 0 
Gene Names: NAMPT (PBEF, PBEF1)
EC: 2.4.2.12
Find proteins for P43490 (Homo sapiens)
Go to Gene View: NAMPT
Go to UniProtKB:  P43490
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
7TA
Query on 7TA

Download SDF File 
Download CCD File 
A, B
N-{4-[1-(2-methylpropanoyl)piperidin-4-yl]phenyl}-2H-pyrrolo[3,4-c]pyridine-2-carboxamide
C23 H26 N4 O2
UXDAQOSAZJARDY-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.164 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 61.166α = 90.00
b = 107.049β = 96.77
c = 83.135γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling
MOLREPphasing
PDB_EXTRACTdata extraction
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-06-28
    Type: Initial release
  • Version 1.1: 2017-07-19
    Type: Database references
  • Version 1.2: 2018-03-21
    Type: Data collection