6B9Q

Single particle cryo-EM structure determination of the LuIII capsid protein

  • Classification: VIRUS LIKE PARTICLE
  • Organism(s): LuIII virus
  • Expression System: Spodoptera frugiperda
  • Mutation(s): No 

  • Deposited: 2017-10-11 Released: 2017-11-15 
  • Deposition Author(s): Pittman, N.C., Agbandje-McKenna, M.
  • Funding Organization(s): 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), National Institutes of Health/National Cancer Institute (NIH/NCI)

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.17 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Atomic Resolution Structure of the Oncolytic Parvovirus LuIII by Electron Microscopy and 3D Image Reconstruction.

Pittman, N.Misseldine, A.Geilen, L.Halder, S.Smith, J.K.Kurian, J.Chipman, P.Janssen, M.Mckenna, R.Baker, T.S.D'Abramo, A.Cotmore, S.Tattersall, P.Agbandje-McKenna, M.

(2017) Viruses 9

  • DOI: 10.3390/v9110321
  • Primary Citation of Related Structures:  
    6B9Q

  • PubMed Abstract: 
  • LuIII, a protoparvovirus pathogenic to rodents, replicates in human mitotic cells, making it applicable for use to kill cancer cells. This virus group includes H-1 parvovirus (H-1PV) and minute virus of mice (MVM). However, LuIII displays enhanced oncolysis compared to H-1PV and MVM, a phenotype mapped to the major capsid viral protein 2 (VP2) ...

    LuIII, a protoparvovirus pathogenic to rodents, replicates in human mitotic cells, making it applicable for use to kill cancer cells. This virus group includes H-1 parvovirus (H-1PV) and minute virus of mice (MVM). However, LuIII displays enhanced oncolysis compared to H-1PV and MVM, a phenotype mapped to the major capsid viral protein 2 (VP2). This suggests that within LuIII VP2 are determinants for improved tumor lysis. To investigate this, the structure of the LuIII virus-like-particle was determined using single particle cryo-electron microscopy and image reconstruction to 3.17 Å resolution, and compared to the H-1PV and MVM structures. The LuIII VP2 structure, ordered from residue 37 to 587 (C-terminal), had the conserved VP topology and capsid morphology previously reported for other protoparvoviruses. This includes a core β-barrel and α-helix A, a depression at the icosahedral 2-fold and surrounding the 5-fold axes, and a single protrusion at the 3-fold axes. Comparative analysis identified surface loop differences among LuIII, H-1PV, and MVM at or close to the capsid 2- and 5-fold symmetry axes, and the shoulder of the 3-fold protrusions. The 2-fold differences cluster near the previously identified MVM sialic acid receptor binding pocket, and revealed potential determinants of protoparvovirus tumor tropism.


    Organizational Affiliation

    Center for Structural Biology, The McKnight Brain Institute, University of Florida, Gainesville, FL 32611, USA. mckenna@ufl.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Capsid protein VP2587LuIII virusMutation(s): 0 
UniProt
Find proteins for P36310 (Parvovirus LuIII)
Explore P36310 
Go to UniProtKB:  P36310
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.17 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM082946-07S1, 229
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM082946
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United States5T32AI007110-34
National Institutes of Health/National Cancer Institute (NIH/NCI)United StatesCA029303
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesU24GM116792

Revision History  (Full details and data files)

  • Version 1.0: 2017-11-15
    Type: Initial release
  • Version 1.1: 2017-12-06
    Changes: Author supporting evidence
  • Version 1.2: 2019-12-04
    Changes: Author supporting evidence