5H0S

EM Structure of VP1A and VP1B


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.3 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Near-Atomic Resolution Structure Determination of a Cypovirus Capsid and Polymerase Complex Using Cryo-EM at 200kV

Li, X.Zhou, N.Chen, W.Zhu, B.Wang, X.Xu, B.Wang, J.Liu, H.Cheng, L.

(2017) J. Mol. Biol. 429: 79-87

  • DOI: 10.1016/j.jmb.2016.11.025
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Single-particle cryo-electron microscopy (cryo-EM) allows the high-resolution structural determination of biological assemblies in a near-native environment. However, all high-resolution (better than 3.5Å) cryo-EM structures reported to date were obt ...

    Single-particle cryo-electron microscopy (cryo-EM) allows the high-resolution structural determination of biological assemblies in a near-native environment. However, all high-resolution (better than 3.5Å) cryo-EM structures reported to date were obtained by using 300kV transmission electron microscopes (TEMs). We report here the structures of a cypovirus capsid of 750-Å diameter at 3.3-Å resolution and of RNA-dependent RNA polymerase (RdRp) complexes within the capsid at 3.9-Å resolution using a 200-kV TEM. The newly resolved structure revealed conformational changes of two subdomains in the RdRp. These conformational changes, which were involved in RdRp's switch from non-transcribing to transcribing mode, suggest that the RdRp may facilitate the unwinding of genomic double-stranded RNA. The possibility of 3-Å resolution structural determinations for biological assemblies of relatively small sizes using cryo-EM at 200kV was discussed.


    Organizational Affiliation

    College of Physics and Information Science, Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha, Hunan, 410081, China; Technology Center for Protein Sciences, Tsinghua University, Beijing, 100084, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
VP1
B, C
1333Bombyx mori cytoplasmic polyhedrosis virusMutation(s): 0 
Find proteins for Q6TS43 (Bombyx mori cytoplasmic polyhedrosis virus)
Go to UniProtKB:  Q6TS43
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.3 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
the National Research and Development Program of ChinaChina2016YFA0501103
the National Research and Development Program of ChinaChina2015CB910104
the National Natural Science Foundation of ChinaChina91530321
the National Natural Science Foundation of ChinaChina31570727
the National Natural Science Foundation of ChinaChina31570742

Revision History 

  • Version 1.0: 2017-01-25
    Type: Initial release