4ZXS

HSV-1 nuclear egress complex

  • Classification: VIRAL PROTEIN
  • Organism(s): Human herpesvirus 1 (strain 17)
  • Expression System: Escherichia coli

  • Deposited: 2015-05-20 Released: 2015-11-11 
  • Deposition Author(s): Bigalke, J.M., Heldwein, E.E.
  • Funding Organization(s): German Research Foundation (DFG); National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS); National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID); Burroughs Wellcome Fund 

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.772 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.5 of the entry. See complete history

Literature

Structural basis of membrane budding by the nuclear egress complex of herpesviruses.

Bigalke, J.M.Heldwein, E.E.

(2015) Embo J. 34: 2921-2936

  • DOI: 10.15252/embj.201592359
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • During nuclear egress, herpesvirus capsids bud at the inner nuclear membrane forming perinuclear viral particles that subsequently fuse with the outer nuclear membrane, releasing capsids into the cytoplasm. This unusual budding process is mediated by ...

    During nuclear egress, herpesvirus capsids bud at the inner nuclear membrane forming perinuclear viral particles that subsequently fuse with the outer nuclear membrane, releasing capsids into the cytoplasm. This unusual budding process is mediated by the nuclear egress complex (NEC) composed of two conserved viral proteins, UL31 and UL34. Earlier, we discovered that the herpesvirus nuclear egress complex (NEC) could bud synthetic membranes in vitro without the help of other proteins by forming a coat-like hexagonal scaffold inside the budding membrane. To understand the structural basis of NEC-mediated membrane budding, we determined the crystal structures of the NEC from two herpesviruses. The hexagonal lattice observed in the NEC crystals recapitulates the honeycomb coats within the budded vesicles. Perturbation of the oligomeric interfaces through mutagenesis blocks budding in vitro confirming that NEC oligomerization into a honeycomb lattice drives budding. The structure represents the first atomic-level view of an oligomeric array formed by a membrane-deforming protein, making possible the dissection of its unique budding mechanism and the design of inhibitors to block it.


    Organizational Affiliation

    Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA, USA katya.heldwein@tufts.edu.,Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Virion egress protein UL34
A, C
183Human herpesvirus 1 (strain 17)Mutation(s): 0 
Gene Names: NEC2
Find proteins for P10218 (Human herpesvirus 1 (strain 17))
Go to UniProtKB:  P10218
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Virion egress protein UL31
B, D
260Human herpesvirus 1 (strain 17)Mutation(s): 0 
Gene Names: NEC1
Find proteins for P10215 (Human herpesvirus 1 (strain 17))
Go to UniProtKB:  P10215
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
B, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA

Download SDF File 
Download CCD File 
B, D
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download SDF File 
Download CCD File 
A, C
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
NI
Query on NI

Download SDF File 
Download CCD File 
A, C
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.772 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.217 
  • Space Group: P 6
  • Diffraction Data DOI: 
    10.15785/SBGRID/189 SBGrid
Unit Cell:
Length (Å)Angle (°)
a = 110.529α = 90.00
b = 110.529β = 90.00
c = 155.850γ = 120.00
Software Package:
Software NamePurpose
Cootmodel building
XDSdata scaling
PHENIXrefinement
PHASERphasing
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research Foundation (DFG)GermanyBI 1658/1-1
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United States1R01GM111795-01
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United States1R21AI097573-01A1
Burroughs Wellcome FundUnited States--

Revision History 

  • Version 1.0: 2015-11-11
    Type: Initial release
  • Version 1.1: 2015-12-16
    Type: Database references
  • Version 1.2: 2017-09-20
    Type: Author supporting evidence, Database references, Derived calculations, Refinement description
  • Version 1.3: 2017-09-27
    Type: Author supporting evidence
  • Version 1.4: 2018-01-17
    Type: Author supporting evidence
  • Version 1.5: 2019-12-11
    Type: Author supporting evidence