3RQO

Structure of the endothelial nitric oxide synthase heme domain in complex with 6-(((3R,4R)-4-(2-((1S,2R/1R,2S)-2-(3-Clorophenyl)cyclopropylamino)ethoxy)pyrrolidin-3-yl)methyl)-4-methylpyridin-2-amine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.08 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.174 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Cyclopropyl- and methyl-containing inhibitors of neuronal nitric oxide synthase.

Li, H.Xue, F.Kraus, J.M.Ji, H.Labby, K.J.Mataka, J.Delker, S.L.Martasek, P.Roman, L.J.Poulos, T.L.Silverman, R.B.

(2013) Bioorg.Med.Chem. 21: 1333-1343

  • DOI: 10.1016/j.bmc.2012.12.019
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Inhibitors of neuronal nitric oxide synthase have been proposed as therapeutics for the treatment of different types of neurological disorders. On the basis of a cis-3,4-pyrrolidine scaffold, a series of trans-cyclopropyl- and methyl-containing nNOS ...

    Inhibitors of neuronal nitric oxide synthase have been proposed as therapeutics for the treatment of different types of neurological disorders. On the basis of a cis-3,4-pyrrolidine scaffold, a series of trans-cyclopropyl- and methyl-containing nNOS inhibitors have been synthesized. The insertion of a rigid electron-withdrawing cyclopropyl ring decreases the basicity of the adjacent amino group, which resulted in decreased inhibitory activity of these inhibitors compared to the parent compound. Nonetheless, three of them exhibited double-digit nanomolar inhibition with high nNOS selectivity on the basis of in vitro enzyme assays. Crystal structures of nNOS and eNOS with these inhibitors bound provide a basis for detailed structure-activity relationship (SAR) studies. The conclusions from these studies will be used as a guide in the future development of selective NOS inhibitors.


    Organizational Affiliation

    Department of Molecular Biology and Biochemistry, University of California, Irvine, CA 92697-3900, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nitric oxide synthase, endothelial
A, B
443Bos taurusMutation(s): 0 
Gene Names: NOS3
EC: 1.14.13.39
Find proteins for P29473 (Bos taurus)
Go to Gene View: NOS3
Go to UniProtKB:  P29473
Small Molecules
Ligands 7 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

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A, B
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
CAD
Query on CAD

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A, B
CACODYLIC ACID
HYDROXYDIMETHYLARSINE OXIDE
C2 H7 As O2
OGGXGZAMXPVRFZ-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

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A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
HEM
Query on HEM

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A, B
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
H4B
Query on H4B

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A, B
5,6,7,8-TETRAHYDROBIOPTERIN
C9 H15 N5 O3
FNKQXYHWGSIFBK-RPDRRWSUSA-N
 Ligand Interaction
X2D
Query on X2D

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A, B
6-{[(3R,4R)-4-(2-{[(1R,2S)-2-(3-chlorophenyl)cyclopropyl]amino}ethoxy)pyrrolidin-3-yl]methyl}-4-methylpyridin-2-amine
C22 H29 Cl N4 O
SLFXGXAWJWFFCO-RCOXNQKVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.08 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.174 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 58.084α = 90.00
b = 106.643β = 90.00
c = 156.516γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
REFMACphasing
HKL-2000data reduction
Blu-Icedata collection
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-05-02
    Type: Initial release
  • Version 1.1: 2013-04-24
    Type: Database references
  • Version 1.2: 2017-11-08
    Type: Refinement description