1IVB

STRUCTURES OF AROMATIC INHIBITORS OF INFLUENZA VIRUS NEURAMINIDASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Work: 0.189 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structures of aromatic inhibitors of influenza virus neuraminidase.

Jedrzejas, M.J.Singh, S.Brouillette, W.J.Laver, W.G.Air, G.M.Luo, M.

(1995) Biochemistry 34: 3144-3151

  • Primary Citation of Related Structures:  1IVC, 1IVD, 1IVE, 1IVF, 1IVG

  • PubMed Abstract: 
  • Neuraminidase (NA), a surface glycoprotein of influenza virus, is a potential target for design of antiinfluenza agents. The crystal structure of influenza virus neuraminidase showed that in the active site 11 residues are universally conserved among ...

    Neuraminidase (NA), a surface glycoprotein of influenza virus, is a potential target for design of antiinfluenza agents. The crystal structure of influenza virus neuraminidase showed that in the active site 11 residues are universally conserved among all strains known so far. Several potent inhibitors based on the carbohydrate compound 2-deoxy-2,3-didehydro-D-N-acetylneuraminic acid (DANA) have been shown to bind to the conserved active site and to reduce virus infection in animals when administered by nasal spray. Inhibitors of this type are, however, rapidly excreted from physiological systems and may not be effective in order to provide long-time protection. A new class of specific NA inhibitors, which are benzoic acid derivatives, has been designed on the basis of the three-dimensional structure of the NA-DANA complex and modeling of derivatives of 4-(acetylamino)benzoic acid in the NA active site. Intermediates were synthesized and were shown to moderately inhibit the NA activity and to bind to the NA active site as predicted. These rudimentary inhibitors, 4-(acetylamino)-3-hydroxy-5-nitrobenzoic acid, 4-(acetylamino)-3-hydroxy-5-aminobenzoic acid, and 4-(acetylamino)-3-aminobenzoic acid, and their X-ray structures in complexes with N2 (A/Tokyo/3/67) and B/Lee/40 neuraminidases have been analyzed. The coordinates of such inhibitors complexed with NA were used as the starting model for further design of more potent benzoic acid inhibitors. Because the active site residues of NA are invariant, the designed aromatic inhibitors have the potential to become an antiviral drug against all strains of influenza virus.


    Related Citations: 
    • Three-Dimensional Structure of the Neuraminidase of Influenza Virus A(Slash)Tokyo(Slash)3(Slash)67 at 2.2 Angstroms Resolution
      Varghese, J.N.,Colman, P.M.
      (1991) J.Mol.Biol. 221: 473
    • Structure-Based Inhibitors of Influenza Viral Neuraminidase. A Benzoic Acid Lead with Novel Interaction
      Singh, S.,Jedrzejas, M.J.,Air, G.M.,Luo, M.,Laver, W.G.,Brouillette, W.J.
      () TO BE PUBLISHED --: --
    • Structure of Influenza Virus Neuraminidase B(Slash)Lee(Slash)40 Complexed with Sialic Acid and a Dehydro Analog at 1.8 Angstroms Resolution: Implications for the Catalytic Mechanism
      Janakiraman, M.N.,White, C.L.,Laver, W.G.,Air, G.M.,Luo, M.
      (1994) Biochemistry 33: 8172
    • Refined Atomic Structures of N9 Subtype Influenza Virus Neuraminidase and Escape Mutants
      Tulip, W.R.,Varghese, J.N.,Baker, A.T.,Van Donkelaar, A.,Laver, W.G.,Webster, R.G.,Colman, P.M.
      (1991) J.Mol.Biol. 221: 487


    Organizational Affiliation

    Department of Microbiology, University of Alabama at Birmingham 35294.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INFLUENZA VIRUS B/LEE/40 NEURAMINIDASE
A
390Influenza B virus (strain B/Lee/1940)Gene Names: NA
EC: 3.2.1.18
Find proteins for P03474 (Influenza B virus (strain B/Lee/1940))
Go to UniProtKB:  P03474
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
ST1
Query on ST1

Download SDF File 
Download CCD File 
A
4-(ACETYLAMINO)-3-HYDROXY-5-NITROBENZOIC ACID
C9 H8 N2 O6
JIDRTCHFBHJIDG-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Work: 0.189 
  • Space Group: P 4 21 2
Unit Cell:
Length (Å)Angle (°)
a = 124.540α = 90.00
b = 124.540β = 90.00
c = 71.820γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORrefinement
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-03-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance