7LUM

Human TRiC in ATP/AlFx closed state


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 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

Structural and functional dissection of reovirus capsid folding and assembly by the prefoldin-TRiC/CCT chaperone network.

Knowlton, J.J.Gestaut, D.Ma, B.Taylor, G.Seven, A.B.Leitner, A.Wilson, G.J.Shanker, S.Yates, N.A.Prasad, B.V.V.Aebersold, R.Chiu, W.Frydman, J.Dermody, T.S.

(2021) Proc Natl Acad Sci U S A 118

  • DOI: https://doi.org/10.1073/pnas.2018127118
  • Primary Citation of Related Structures:  
    7LUM, 7LUP

  • PubMed Abstract: 

    Intracellular protein homeostasis is maintained by a network of chaperones that function to fold proteins into their native conformation. The eukaryotic TRiC chaperonin (TCP1-ring complex, also called CCT for cytosolic chaperonin containing TCP1) facilitates folding of a subset of proteins with folding constraints such as complex topologies. To better understand the mechanism of TRiC folding, we investigated the biogenesis of an obligate TRiC substrate, the reovirus σ3 capsid protein. We discovered that the σ3 protein interacts with a network of chaperones, including TRiC and prefoldin. Using a combination of cryoelectron microscopy, cross-linking mass spectrometry, and biochemical approaches, we establish functions for TRiC and prefoldin in folding σ3 and promoting its assembly into higher-order oligomers. These studies illuminate the molecular dynamics of σ3 folding and establish a biological function for TRiC in virus assembly. In addition, our findings provide structural and functional insight into the mechanism by which TRiC and prefoldin participate in the assembly of protein complexes.


  • Organizational Affiliation

    Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit epsilonA [auth L],
B [auth D]
541Homo sapiensMutation(s): 0 
Gene Names: CCT5CCTEKIAA0098
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Find proteins for P48643 (Homo sapiens)
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PHAROS:  P48643
GTEx:  ENSG00000150753 
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UniProt GroupP48643
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit betaC [auth M],
D [auth E]
535Homo sapiensMutation(s): 0 
Gene Names: CCT299D8.1CCTB
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Find proteins for P78371 (Homo sapiens)
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PHAROS:  P78371
GTEx:  ENSG00000166226 
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UniProt GroupP78371
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit deltaE [auth N],
F
539Homo sapiensMutation(s): 0 
Gene Names: CCT4CCTDSRB
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Find proteins for P50991 (Homo sapiens)
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PHAROS:  P50991
GTEx:  ENSG00000115484 
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UniProt GroupP50991
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit gammaG [auth H],
H [auth P]
545Homo sapiensMutation(s): 0 
Gene Names: CCT3CCTGTRIC5
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Find proteins for P49368 (Homo sapiens)
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PHAROS:  P49368
GTEx:  ENSG00000163468 
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UniProt GroupP49368
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit etaI [auth K],
J [auth C]
543Homo sapiensMutation(s): 0 
Gene Names: CCT7CCTHNIP7-1
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Find proteins for Q99832 (Homo sapiens)
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GTEx:  ENSG00000135624 
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UniProt GroupQ99832
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit thetaK [auth J],
L [auth B]
548Homo sapiensMutation(s): 0 
Gene Names: CCT8C21orf112CCTQKIAA0002
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Find proteins for P50990 (Homo sapiens)
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PHAROS:  P50990
GTEx:  ENSG00000156261 
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UniProt GroupP50990
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit zetaM [auth I],
N [auth A]
531Homo sapiensMutation(s): 0 
Gene Names: CCT6ACCT6CCTZ
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Find proteins for P40227 (Homo sapiens)
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GTEx:  ENSG00000146731 
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UniProt GroupP40227
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
T-complex protein 1 subunit alphaO,
P [auth G]
556Homo sapiensMutation(s): 0 
Gene Names: TCP1CCT1CCTA
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Find proteins for P17987 (Homo sapiens)
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PHAROS:  P17987
GTEx:  ENSG00000120438 
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UniProt GroupP17987
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Robert A. Welch FoundationUnited StatesQ1279
National Institutes of Health/National Center for Advancing Translational Sciences (NIH/NCATS)United StatesUL1TR000445
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesP41GM103832
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesP01NS092525
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM007347
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM074074
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM103124
National Institutes of Health/National Center for Advancing Translational Sciences (NIH/NCATS)United StatesUL1TR000445
European Research Council (ERC)European UnionAdvG 233226
European Research Council (ERC)European UnionAdvG 670821

Revision History  (Full details and data files)

  • Version 1.0: 2021-03-03
    Type: Initial release
  • Version 1.1: 2021-04-21
    Changes: Database references