6B1A

Structure of human NNMT in complex with bisubstrate inhibitor MS2756

  • Classification: TRANSFERASE/TRANSFERASE INHIBITOR
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli BL21(DE3)
  • Mutation(s): 

  • Deposited: 2017-09-18 Released: 2018-01-31 
  • Deposition Author(s): Babault, N., Liu, J., Jin, J.
  • Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences; National Institutes of Health/National Cancer Institute; National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health & Human Development 

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.170 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Discovery of Bisubstrate Inhibitors of Nicotinamide N-Methyltransferase (NNMT).

Babault, N.Allali-Hassani, A.Li, F.Fan, J.Yue, A.Ju, K.Liu, F.Vedadi, M.Liu, J.Jin, J.

(2018) J. Med. Chem. 61: 1541-1551

  • DOI: 10.1021/acs.jmedchem.7b01422
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Nicotinamide N-methyltransferase (NNMT) catalyzes the N-methylation of pyridine-containing compounds using the cofactor S-5'-adenosyl-l-methionine (SAM) as the methyl group donor. Through the regulation of the levels of its substrates, cofactor, and ...

    Nicotinamide N-methyltransferase (NNMT) catalyzes the N-methylation of pyridine-containing compounds using the cofactor S-5'-adenosyl-l-methionine (SAM) as the methyl group donor. Through the regulation of the levels of its substrates, cofactor, and products, NNMT plays an important role in physiology and pathophysiology. Overexpression of NNMT has been implicated in various human diseases. Potent and selective small-molecule NNMT inhibitors are valuable chemical tools for testing biological and therapeutic hypotheses. However, very few NNMT inhibitors have been reported. Here, we describe the discovery of a bisubstrate NNMT inhibitor MS2734 (6) and characterization of this inhibitor in biochemical, biophysical, kinetic, and structural studies. Importantly, we obtained the first crystal structure of human NNMT in complex with a small-molecule inhibitor. The structure of the NNMT-6 complex has unambiguously demonstrated that 6 occupied both substrate and cofactor binding sites. The findings paved the way for developing more potent and selective NNMT inhibitors in the future.


    Organizational Affiliation

    Center for Chemical Biology and Drug Discovery, Departments of Pharmacological Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai , New York, New York 10029, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nicotinamide N-methyltransferase
A, B, C, D
283Homo sapiensMutation(s): 3 
Gene Names: NNMT
EC: 2.1.1.1
Find proteins for P40261 (Homo sapiens)
Go to Gene View: NNMT
Go to UniProtKB:  P40261
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download SDF File 
Download CCD File 
B
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
C8J
Query on C8J

Download SDF File 
Download CCD File 
A, B, C, D
(2~{R})-5-[2-(3-aminocarbonylphenyl)ethyl-[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl]amino]-2-azanyl-pentanoic acid
C24 H32 N8 O6
HSCPXDPGPWYINM-AXKRAVOISA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.170 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 46.440α = 91.76
b = 62.560β = 98.05
c = 107.979γ = 111.83
Software Package:
Software NamePurpose
iMOSFLMdata reduction
SCALAdata scaling
PHENIXrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01GM122749
National Institutes of Health/National Cancer InstituteUnited StatesR01CA218600
National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health & Human DevelopmentUnited StatesR01HD088626

Revision History 

  • Version 1.0: 2018-01-31
    Type: Initial release
  • Version 1.1: 2018-02-14
    Type: Author supporting evidence
  • Version 1.2: 2018-03-07
    Type: Database references
  • Version 1.3: 2018-03-21
    Type: Source and taxonomy