6XG6

Full-length human mitochondrial Hsp90 (TRAP1) with ADP-BeF3

  • Classification: CHAPERONE
  • Organism(s): Homo sapiens, Streptococcus pyogenes
  • Expression System: Escherichia coli
  • Mutation(s): No 

  • Deposited: 2020-06-17 Released: 2020-09-30 
  • Deposition Author(s): Liu, Y.X., Wang, F., Agard, D.A.
  • Funding Organization(s): Howard Hughes Medical Institute (HHMI), American Heart Association, National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), National Institutes of Health/National Cancer Institute (NIH/NCI), National Institutes of Health/National Institute of Mental Health (NIH/NIMH), National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

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 1.1 of the entry. See complete history


Literature

General and robust covalently linked graphene oxide affinity grids for high-resolution cryo-EM.

Wang, F.Liu, Y.Yu, Z.Li, S.Feng, S.Cheng, Y.Agard, D.A.

(2020) Proc Natl Acad Sci U S A 117: 24269-24273

  • DOI: 10.1073/pnas.2009707117
  • Primary Citation of Related Structures:  
    6XG6

  • PubMed Abstract: 
  • Affinity grids have great potential to facilitate rapid preparation of even quite impure samples in single-particle cryo-electron microscopy (EM). Yet despite the promising advances of affinity grids over the past decades, no single strategy has demonstrated general utility ...

    Affinity grids have great potential to facilitate rapid preparation of even quite impure samples in single-particle cryo-electron microscopy (EM). Yet despite the promising advances of affinity grids over the past decades, no single strategy has demonstrated general utility. Here we chemically functionalize cryo-EM grids coated with mostly one or two layers of graphene oxide to facilitate affinity capture. The protein of interest is tagged using a system that rapidly forms a highly specific covalent bond to its cognate catcher linked to the grid via a polyethylene glycol (PEG) spacer. Importantly, the spacer keeps particles away from both the air-water interface and the graphene oxide surface, protecting them from potential denaturation and rendering them sufficiently flexible to avoid preferential sample orientation concerns. Furthermore, the PEG spacer successfully reduces nonspecific binding, enabling high-resolution reconstructions from a much cruder lysate sample.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of California, San Francisco, CA 94143; agard@msg.ucsf.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Heat shock protein 75 kDa, mitochondrial, Fibronectin binding protein fusionA, B774Homo sapiensStreptococcus pyogenes
This entity is chimeric
Mutation(s): 0 
Gene Names: TRAP1HSP75fba2E0F66_06355GQY31_00620
UniProt & NIH Common Fund Data Resources
Find proteins for Q12931 (Homo sapiens)
Explore Q12931 
Go to UniProtKB:  Q12931
PHAROS:  Q12931
Find proteins for Q8G9G1 (Streptococcus pyogenes)
Explore Q8G9G1 
Go to UniProtKB:  Q8G9G1
Protein Feature View
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  • Reference Sequence
Small Molecules
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
Howard Hughes Medical Institute (HHMI)United States--
American Heart AssociationUnited States18POST33990362
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR35GM118099
National Institutes of Health/National Cancer Institute (NIH/NCI)United StatesU54CA209891
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)United StatesU01MH115747
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesU19AI135990

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-30
    Type: Initial release
  • Version 1.1: 2020-10-14
    Changes: Database references