6KS7

TRiC at 0.1 mM ADP-AlFx, Conformation 1, 0.1-C1


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.62 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 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.USA 116: 19513-19522

  • DOI: 10.1073/pnas.1903976116
  • Primary Citation of Related Structures:  

  • 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 ...

    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

    Shanghai Science Research Center, Chinese Academy of Sciences, Shanghai 201210, China.,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; cong@sibcb.ac.cn.,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

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
T-complex protein 1 subunit eta
H, h
550Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: CCT7
Find proteins for P42943 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: CCT7
Go to UniProtKB:  P42943
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
T-complex protein 1 subunit alpha
a, A
559Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: TCP1 (CCT1)
Find proteins for P12612 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: TCP1
Go to UniProtKB:  P12612
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
T-complex protein 1 subunit beta
b, B
527Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: CCT2 (BIN3, TCP2)
Find proteins for P39076 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: CCT2
Go to UniProtKB:  P39076
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
T-complex protein 1 subunit delta
d, D
528Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: CCT4 (ANC2, TCP4)
Find proteins for P39078 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: CCT4
Go to UniProtKB:  P39078
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
T-complex protein 1 subunit epsilon
e
562Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: CCT5 (TCP5)
Find proteins for P40413 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: CCT5
Go to UniProtKB:  P40413
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
T-complex protein 1 subunit epsilon
E
518Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: CCT5 (TCP5)
Find proteins for P40413 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: CCT5
Go to UniProtKB:  P40413
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
fusion protein of T-complex protein 1 subunit gamma, rep-His-CBP and T-complex protein 1 subunit gamma
g, G
594Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: CCT3 (BIN2, TCP3)
Find proteins for P39077 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: CCT3
Go to UniProtKB:  P39077
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
T-complex protein 1 subunit theta
q, Q
568Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: CCT8
Find proteins for P47079 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: CCT8
Go to UniProtKB:  P47079
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
T-complex protein 1 subunit zeta
z, Z
546Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: CCT6 (TCP20, TCP6)
Find proteins for P39079 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P39079
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.62 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

  • Deposited Date: 2019-08-23 
  • Released Date: 2019-09-18 
  • Deposition Author(s): Jin, M., Cong, Y.

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 

  • Version 1.0: 2019-09-18
    Type: Initial release
  • Version 1.1: 2019-10-09
    Type: Data collection, Database references
  • Version 1.2: 2019-11-06
    Type: Data collection, Other