6J6J

Biotin-bound streptavidin


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.3 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
  • Structures With Same Primary Citation

  • 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

    Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing, 100084, China. hongweiwang@tsinghua.edu.cn.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
StreptavidinA, B, C, D119Streptomyces avidiniiMutation(s): 0 
Find proteins for P22629 (Streptomyces avidinii)
Explore P22629 
Go to UniProtKB:  P22629
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BTN
Query on BTN

Download CCD File 
A, B, C, D
BIOTIN
C10 H16 N2 O3 S
YBJHBAHKTGYVGT-ZKWXMUAHSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



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
    Changes: Data collection, Database references
  • Version 1.2: 2019-11-06
    Changes: Data collection, Other
  • Version 1.3: 2020-08-05
    Changes: Data collection