4UX6

The discovery of novel, potent and highly selective inhibitors of inducible nitric oxide synthase (iNOS)

• PDB DOI: https://doi.org/10.2210/pdb4UX6/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2014-08-19 Released: 2014-10-08 
• Deposition Author(s): Cheshire, D.R., Andrews, G., Beaton, H.G., Birkinshaw, T., Boughton-Smith, N., Connolly, S., Cook, T.R., Cooper, A., Cooper, S.L., Cox, D., Dixon, J., Gensmantel, N., Hamley, P.J., Harrison, R., Hartopp, P., Kack, H., Luker, T., Mete, A., Millichip, I., Nicholls, D.J., Pimm, A.D., St-Gallay, S.A., Wallace, A.V.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Work: 0.230 
• R-Value Observed: 0.230 

Literature

The Discovery of Novel, Potent and Highly Selective Inhibitors of Inducible Nitric Oxide Synthase (Inos).

Cheshire, D.R., Aberg, A., Andersson, G.M.K., Andrews, G., Beaton, H.G., Birkinshaw, T.N., Boughton-Smith, N., Connolly, S., Cook, T.R., Cooper, A., Cooper, S.L., Cox, D., Dixon, J., Gensmantel, N., Hamley, P.J., Harrison, R., Hartopp, P., Kack, H., Leeson, P.D., Luker, T., Mete, A., Millichip, I., Nicholls, D.J., Pimm, A.D., St-Gallay, S.A., Wallace, A.V.

(2011) Bioorg Med Chem Lett 21: 2468

• PubMed: 21398123 
• DOI: https://doi.org/10.1016/j.bmcl.2011.02.061
• Primary Citation of Related Structures:  
  2Y37, 4UX6


• PubMed Abstract: 
  

  By careful analysis of experimental X-ray ligand crystallographic protein data across several inhibitor series we have discovered a novel, potent and selective series of iNOS inhibitors exemplified by compound 8.

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Organizational Affiliation: 

Department of Chemistry, AstraZeneca Charnwood, Bakewell Road, Loughborough LE11 5RH, United Kingdom. [e-mail]

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 49.01 kDa 
• Atom Count: 3,451 
• Modelled Residue Count: 413 
• Deposited Residue Count: 413 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
NITRIC OXIDE SYNTHASE, INDUCIBLE	A	24	Mus musculus	Mutation(s): 0  EC: 1.14.13.39
UniProt & NIH Common Fund Data Resources
Find proteins for P29477 (Mus musculus) Explore P29477  Go to UniProtKB:  P29477
IMPC:  MGI:97361

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
NITRIC OXIDE SYNTHASE, INDUCIBLE	B	389	Mus musculus	Mutation(s): 0  EC: 1.14.13.39
UniProt & NIH Common Fund Data Resources
Find proteins for P29477 (Mus musculus) Explore P29477  Go to UniProtKB:  P29477
IMPC:  MGI:97361

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	C [auth B]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
YWO	E [auth B]	O-(5-methyl-2-nitrophenyl)-D-tyrosinamide C16 H17 N3 O4 YQBKHPZUMXXXFB-CYBMUJFWSA-N
H4B	D [auth B]	5,6,7,8-TETRAHYDROBIOPTERIN C9 H15 N5 O3 FNKQXYHWGSIFBK-RPDRRWSUSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Work: 0.230 
• R-Value Observed: 0.230 
• Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 213.55	α = 90
b = 213.55	β = 90
c = 115.99	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement
MOSFLM	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-10-08 
Deposition Author(s): Cheshire, D.R., Andrews, G., Beaton, H.G., Birkinshaw, T., Boughton-Smith, N., Connolly, S., Cook, T.R., Cooper, A., Cooper, S.L., Cox, D., Dixon, J., Gensmantel, N., Hamley, P.J., Harrison, R., Hartopp, P., Kack, H., Luker, T., Mete, A., Millichip, I., Nicholls, D.J., Pimm, A.D., St-Gallay, S.A., Wallace, A.V.

Revision History  

• Version 1.0: 2014-10-08
  Type: Initial release
  
• Version 1.1: 2014-10-15
  Changes: Database references
• Version 1.2: 2018-01-17
  Changes: Data collection
• Version 1.3: 2024-11-20
  Changes: Data collection, Database references, Derived calculations, Structure summary