6J6K

Apo-state streptavidin


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 1.1 of the entry. See complete history

Literature

Single particle cryo-EM reconstruction of 52 kDa streptavidin at 3.2 Angstrom resolution.

Fan, X.Wang, J.Zhang, X.Yang, Z.Zhang, J.C.Zhao, L.Peng, H.L.Lei, J.Wang, H.W.

(2019) Nat Commun 10: 2386-2386

  • DOI: 10.1038/s41467-019-10368-w
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The fast development of single-particle cryogenic electron microscopy (cryo-EM) has made it more feasible to obtain the 3D structure of well-behaved macromolecules with a molecular weight higher than 300 kDa at ~3 Å resolution. However, it remains a ...

    The fast development of single-particle cryogenic electron microscopy (cryo-EM) has made it more feasible to obtain the 3D structure of well-behaved macromolecules with a molecular weight higher than 300 kDa at ~3 Å resolution. However, it remains a challenge to obtain the high-resolution structures of molecules smaller than 200 kDa using single-particle cryo-EM. In this work, we apply the Cs-corrector-VPP-coupled cryo-EM to study the 52 kDa streptavidin (SA) protein supported on a thin layer of graphene and embedded in vitreous ice. We are able to solve both the apo-SA and biotin-bound SA structures at near-atomic resolution using single-particle cryo-EM. We demonstrate that the method has the potential to determine the structures of molecules as small as 39 kDa.


    Organizational Affiliation

    Ministry of Education Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center of Biological Structures, School of Life Sciences, Tsinghua University, Beijing, 100084, China. hongweiwang@tsinghua.edu.cn.,Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing, 100084, China. jllei@tsinghua.edu.cn.,Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.,Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing, 100084, China.,Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing, 100084, China. hongweiwang@tsinghua.edu.cn.,Ministry of Education Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center of Biological Structures, School of Life Sciences, Tsinghua University, Beijing, 100084, China.,Ministry of Education Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, Beijing Frontier Research Center of Biological Structures, School of Life Sciences, Tsinghua University, Beijing, 100084, China. jllei@tsinghua.edu.cn.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Streptavidin
A, B, C, D
119Streptomyces avidiniiMutation(s): 0 
Find proteins for P22629 (Streptomyces avidinii)
Go to UniProtKB:  P22629
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
Ministry of Science and Technology (China)China2016YFA0501100 to H.W.

Revision History 

  • Version 1.0: 2019-05-29
    Type: Initial release
  • Version 1.1: 2019-06-19
    Type: Data collection, Database references