6KRD

TRiC at 0.05 mM ADP-AlFx, Conformation 4, 0.05-C4

  • Classification: CHAPERONE
  • Organism(s): Saccharomyces cerevisiae S288C
  • Mutation(s): No 

  • Deposited: 2019-08-21 Released: 2019-09-18 
  • Deposition Author(s): Jin, M., Cong, Y.
  • Funding Organization(s): National Basic Research Program of China (973 Program), National Natural Science Foundation of China

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.38 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

An ensemble of cryo-EM structures of TRiC reveal its conformational landscape and subunit specificity.

Jin, M.Han, W.Liu, C.Zang, Y.Li, J.Wang, F.Wang, Y.Cong, Y.

(2019) Proc Natl Acad Sci U S A 116: 19513-19522

  • DOI: https://doi.org/10.1073/pnas.1903976116
  • Primary Citation of Related Structures:  
    6KRD, 6KRE, 6KS6, 6KS7, 6KS8

  • PubMed Abstract: 

    TRiC/CCT assists the folding of ∼10% of cytosolic proteins through an ATP-driven conformational cycle and is essential in maintaining protein homeostasis. Here, we determined an ensemble of cryo-electron microscopy (cryo-EM) structures of yeast TRiC at various nucleotide concentrations, with 4 open-state maps resolved at near-atomic resolutions, and a closed-state map at atomic resolution, revealing an extra layer of an unforeseen N-terminal allosteric network. We found that, during TRiC ring closure, the CCT7 subunit moves first, responding to nucleotide binding; CCT4 is the last to bind ATP, serving as an ATP sensor; and CCT8 remains ADP-bound and is hardly involved in the ATPase-cycle in our experimental conditions; overall, yeast TRiC consumes nucleotide in a 2-ring positively coordinated manner. Our results depict a thorough picture of the TRiC conformational landscape and its allosteric transitions from the open to closed states in more structural detail and offer insights into TRiC subunit specificity in ATP consumption and ring closure, and potentially in substrate processing.


  • Organizational Affiliation

    National Center for Protein Science Shanghai, State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit alphaA [auth a],
B [auth A]
559Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
Find proteins for P12612 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit betaC [auth b],
D [auth B]
527Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit deltaE [auth d],
F [auth D]
528Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit epsilonG [auth e],
H [auth E]
562Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit gammaI [auth g],
J [auth G]
534Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit thetaK [auth q],
L [auth Q]
568Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit zetaM [auth z],
N [auth Z]
546Saccharomyces cerevisiae S288CMutation(s): 0 
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit etaO [auth h],
P [auth H]
550Saccharomyces cerevisiae S288CMutation(s): 0 
UniProt
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.38 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Basic Research Program of China (973 Program)China2017YFA0503503
National Natural Science Foundation of ChinaChina31670754
National Natural Science Foundation of ChinaChina31872714
National Natural Science Foundation of ChinaChina31861143028

Revision History  (Full details and data files)

  • Version 1.0: 2019-09-18
    Type: Initial release
  • Version 1.1: 2019-10-09
    Changes: Data collection, Database references
  • Version 1.2: 2019-11-06
    Changes: Data collection, Other
  • Version 1.3: 2024-03-27
    Changes: Author supporting evidence, Data collection, Database references