3J2P

CryoEM structure of Dengue virus envelope protein heterotetramer


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.6 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Cryo-EM structure of the mature dengue virus at 3.5-A resolution.

Zhang, X.Ge, P.Yu, X.Brannan, J.M.Bi, G.Zhang, Q.Schein, S.Zhou, Z.H.

(2012) Nat.Struct.Mol.Biol. 20: 105-110

  • DOI: 10.1038/nsmb.2463
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Regulated by pH, membrane-anchored proteins E and M function during dengue virus maturation and membrane fusion. Our atomic model of the whole virion from cryo-electron microscopy at 3.5-Å resolution reveals that in the mature virus at neutral extrac ...

    Regulated by pH, membrane-anchored proteins E and M function during dengue virus maturation and membrane fusion. Our atomic model of the whole virion from cryo-electron microscopy at 3.5-Å resolution reveals that in the mature virus at neutral extracellular pH, the N-terminal 20-amino-acid segment of M (involving three pH-sensing histidines) latches and thereby prevents spring-loaded E fusion protein from prematurely exposing its fusion peptide. This M latch is fastened at an earlier stage, during maturation at acidic pH in the trans-Golgi network. At a later stage, to initiate infection in response to acidic pH in the late endosome, M releases the latch and exposes the fusion peptide. Thus, M serves as a multistep chaperone of E to control the conformational changes accompanying maturation and infection. These pH-sensitive interactions could serve as targets for drug discovery.


    Organizational Affiliation

    Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles-UCLA, Los Angeles, California, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Envelope protein E
A, C
495Dengue virus type 2 (strain Thailand/NGS-C/1944)Mutation(s): 0 
Find proteins for P14340 (Dengue virus type 2 (strain Thailand/NGS-C/1944))
Go to UniProtKB:  P14340
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Small envelope protein M
B, D
75Dengue virus type 2 (strain Thailand/NGS-C/1944)Mutation(s): 0 
Find proteins for P14340 (Dengue virus type 2 (strain Thailand/NGS-C/1944))
Go to UniProtKB:  P14340
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

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

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.6 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-12-19
    Type: Initial release
  • Version 1.1: 2012-12-26
    Type: Database references
  • Version 1.2: 2013-01-16
    Type: Database references
  • Version 1.3: 2016-10-12
    Type: Structure summary
  • Version 1.4: 2018-07-18
    Type: Data collection