Biological Assembly 1  

 3D View: Structure

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 213.38 kDa 
• Atom Count: 14745 
• Residue Count: 1824 
• Unique protein chains: 1

4BOM

Structure of herpesvirus fusion glycoprotein B-bilayer complex revealing the protein-membrane and lateral protein-protein interaction

• DOI: 10.2210/pdb4BOM/pdb
• EMDataResource: EMD-2380

• Classification: VIRAL PROTEIN
• Organism(s): Human alphaherpesvirus 1
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2013-05-21 Released: 2013-07-31 
• Deposition Author(s): Maurer, U.E., Zeev-Ben-Mordehai, Z., Pandurangan, A.P., Cairns, T.M., Hannah, B.P., Whitbeck, J.C., Eisenberg, R.J., Cohen, G.H., Topf, M., Huiskonen, J.T., Grunewald, K.

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 27.0 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: TOMOGRAPHY 

Literature

The structure of herpesvirus fusion glycoprotein B-bilayer complex reveals the protein-membrane and lateral protein-protein interaction.

Maurer, U.E., Zeev-Ben-Mordehai, T., Pandurangan, A.P., Cairns, T.M., Hannah, B.P., Whitbeck, J.C., Eisenberg, R.J., Cohen, G.H., Topf, M., Huiskonen, J.T., Grunewald, K.

(2013) Structure 21: 1396-1405

• PubMed: 23850455 
• DOI: 10.1016/j.str.2013.05.018
• Primary Citation of Related Structures:  
  4BOM


• PubMed Abstract: 
  

Glycoprotein B (gB) is a key component of the complex herpesvirus fusion machinery. We studied membrane interaction of two gB ectodomain forms and present an electron cryotomography structure of the gB-bilayer complex. The two forms differed in presence or absence of the membrane proximal region (MPR) but showed an overall similar trimeric shape. The presence of the MPR impeded interaction with liposomes. In contrast, the MPR-lacking form interacted efficiently with liposomes. Lateral interaction resulted in coat formation on the membranes. The structure revealed that interaction of gB with membranes was mediated by the fusion loops and limited to the outer membrane leaflet. The observed intrinsic propensity of gB to cluster on membranes indicates an additional role of gB in driving the fusion process forward beyond the transient fusion pore opening and subsequently leading to fusion pore expansion.

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Organizational Affiliation: 

Department of Molecular Structural Biology, Max Planck Institute of Biochemistry, Martinsried 82152, Germany.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ENVELOPE GLYCOPROTEIN B	A, B, C	622	Human alphaherpesvirus 1	Mutation(s): 0
Find proteins for P06437 (Human herpesvirus 1 (strain KOS)) Explore P06437  Go to UniProtKB:  P06437

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 27.0 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: TOMOGRAPHY 

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-05-21 
• Released Date: 2013-07-31 
Deposition Author(s): Maurer, U.E., Zeev-Ben-Mordehai, Z., Pandurangan, A.P., Cairns, T.M., Hannah, B.P., Whitbeck, J.C., Eisenberg, R.J., Cohen, G.H., Topf, M., Huiskonen, J.T., Grunewald, K.

Revision History 

• Version 1.0: 2013-07-31
  Type: Initial release
  
• Version 1.1: 2013-08-07
  Changes: Other
• Version 1.2: 2013-08-28
  Changes: Database references
• Version 1.3: 2017-08-02
  Changes: Data collection
• Version 1.4: 2018-10-24
  Changes: Data collection, Database references, Source and taxonomy, Structure summary