6NRD

hTRiC-hPFD Class4


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.20 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

The Chaperonin TRiC/CCT Associates with Prefoldin through a Conserved Electrostatic Interface Essential for Cellular Proteostasis.

Gestaut, D.Roh, S.H.Ma, B.Pintilie, G.Joachimiak, L.A.Leitner, A.Walzthoeni, T.Aebersold, R.Chiu, W.Frydman, J.

(2019) Cell 177: 751-765.e15

  • DOI: 10.1016/j.cell.2019.03.012
  • Primary Citation of Related Structures:  
    6NR9, 6NR8, 6NRC, 6NRB, 6NRD, 6NRA

  • PubMed Abstract: 
  • Maintaining proteostasis in eukaryotic protein folding involves cooperation of distinct chaperone systems. To understand how the essential ring-shaped chaperonin TRiC/CCT cooperates with the chaperone prefoldin/GIMc (PFD), we integrate cryoelectron m ...

    Maintaining proteostasis in eukaryotic protein folding involves cooperation of distinct chaperone systems. To understand how the essential ring-shaped chaperonin TRiC/CCT cooperates with the chaperone prefoldin/GIMc (PFD), we integrate cryoelectron microscopy (cryo-EM), crosslinking-mass-spectrometry and biochemical and cellular approaches to elucidate the structural and functional interplay between TRiC/CCT and PFD. We find these hetero-oligomeric chaperones associate in a defined architecture, through a conserved interface of electrostatic contacts that serves as a pivot point for a TRiC-PFD conformational cycle. PFD alternates between an open "latched" conformation and a closed "engaged" conformation that aligns the PFD-TRiC substrate binding chambers. PFD can act after TRiC bound its substrates to enhance the rate and yield of the folding reaction, suppressing non-productive reaction cycles. Disrupting the TRiC-PFD interaction in vivo is strongly deleterious, leading to accumulation of amyloid aggregates. The supra-chaperone assembly formed by PFD and TRiC is essential to prevent toxic conformations and ensure effective cellular proteostasis.


    Organizational Affiliation

    Department of Biology and Genetics, Stanford University, Stanford, CA 94305, USA. Electronic address: jfrydman@stanford.edu.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
T-complex protein 1 subunit alphaAI534Homo sapiensMutation(s): 0 
Gene Names: TCP1CCT1CCTA
Find proteins for P17987 (Homo sapiens)
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PHAROS  P17987
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  • Reference Sequence
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
Prefoldin subunit 22103Homo sapiensMutation(s): 0 
Gene Names: PFDN2PFD2HSPC231
Find proteins for Q9UHV9 (Homo sapiens)
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PHAROS  Q9UHV9
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetailsImage
Prefoldin subunit 33132Homo sapiensMutation(s): 0 
Gene Names: VBP1PFDN3
Find proteins for P61758 (Homo sapiens)
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PHAROS  P61758
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetailsImage
Prefoldin subunit 44104Homo sapiensMutation(s): 0 
Gene Names: PFDN4PFD4
Find proteins for Q9NQP4 (Homo sapiens)
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PHAROS  Q9NQP4
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetailsImage
Prefoldin subunit 55127Homo sapiensMutation(s): 0 
Gene Names: PFDN5MM1PFD5
Find proteins for Q99471 (Homo sapiens)
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
Prefoldin subunit 66102Homo sapiensMutation(s): 0 
Gene Names: PFDN6HKE2PFD6
Find proteins for O15212 (Homo sapiens)
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PHAROS  O15212
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
T-complex protein 1 subunit betaBJ509Homo sapiensMutation(s): 0 
Gene Names: CCT299D8.1CCTB
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PHAROS  P78371
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
T-complex protein 1 subunit gammaCK513Homo sapiensMutation(s): 0 
Gene Names: CCT3CCTGTRIC5
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PHAROS  P49368
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
T-complex protein 1 subunit deltaDL514Homo sapiensMutation(s): 0 
Gene Names: CCT4CCTDSRB
Find proteins for P50991 (Homo sapiens)
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PHAROS  P50991
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
T-complex protein 1 subunit epsilonEM517Homo sapiensMutation(s): 0 
Gene Names: CCT5CCTEKIAA0098
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
T-complex protein 1 subunit zetaFN515Homo sapiensMutation(s): 0 
Gene Names: CCT6ACCT6CCTZ
Find proteins for P40227 (Homo sapiens)
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PHAROS  P40227
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
T-complex protein 1 subunit etaGO514Homo sapiensMutation(s): 0 
Gene Names: CCT7CCTHNIP7-1
Find proteins for Q99832 (Homo sapiens)
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PHAROS  Q99832
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
T-complex protein 1 subunit thetaHP514Homo sapiensMutation(s): 0 
Gene Names: CCT8C21orf112CCTQKIAA0002
Find proteins for P50990 (Homo sapiens)
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
Prefoldin subunit 11107Homo sapiensMutation(s): 0 
Gene Names: PFDN1PFD1
Find proteins for O60925 (Homo sapiens)
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PHAROS  O60925
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesR01GM074074
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesF32GM103124
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 StatesR01GM079429
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesP01NS092525
European Research Council (ERC)European UnionAdvG #233226
European Research Council (ERC)European UnionAdvG #670821

Revision History 

  • Version 1.0: 2019-06-19
    Type: Initial release
  • Version 1.1: 2019-12-18
    Changes: Author supporting evidence