+Open data
-Basic information
Entry | Database: PDB / ID: 6nra | ||||||||||||||||||||||||
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Title | hTRiC-hPFD Class1 (No PFD) | ||||||||||||||||||||||||
Components | (T-complex protein 1 subunit ...) x 8 | ||||||||||||||||||||||||
Keywords | CHAPERONE / TRiC/CCT / PFD / CryoEM / Molecular Chaperone / Protein folding | ||||||||||||||||||||||||
Function / homology | Function and homology information zona pellucida receptor complex / scaRNA localization to Cajal body / chaperone mediated protein folding independent of cofactor / positive regulation of establishment of protein localization to telomere / positive regulation of protein localization to Cajal body / tubulin complex assembly / chaperonin-containing T-complex / BBSome-mediated cargo-targeting to cilium / binding of sperm to zona pellucida / positive regulation of telomerase RNA localization to Cajal body ...zona pellucida receptor complex / scaRNA localization to Cajal body / chaperone mediated protein folding independent of cofactor / positive regulation of establishment of protein localization to telomere / positive regulation of protein localization to Cajal body / tubulin complex assembly / chaperonin-containing T-complex / BBSome-mediated cargo-targeting to cilium / binding of sperm to zona pellucida / positive regulation of telomerase RNA localization to Cajal body / Folding of actin by CCT/TriC / Formation of tubulin folding intermediates by CCT/TriC / Prefoldin mediated transfer of substrate to CCT/TriC / RHOBTB1 GTPase cycle / intermediate filament cytoskeleton / WD40-repeat domain binding / pericentriolar material / beta-tubulin binding / Association of TriC/CCT with target proteins during biosynthesis / : / chaperone-mediated protein complex assembly / RHOBTB2 GTPase cycle / heterochromatin / chaperone-mediated protein folding / protein folding chaperone / positive regulation of telomere maintenance via telomerase / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / acrosomal vesicle / cell projection / mRNA 3'-UTR binding / ATP-dependent protein folding chaperone / response to virus / cilium / mRNA 5'-UTR binding / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / azurophil granule lumen / G-protein beta-subunit binding / unfolded protein binding / melanosome / protein folding / cell body / secretory granule lumen / ficolin-1-rich granule lumen / microtubule / cytoskeleton / protein stabilization / cadherin binding / centrosome / ubiquitin protein ligase binding / Neutrophil degranulation / Golgi apparatus / ATP hydrolysis activity / RNA binding / extracellular exosome / extracellular region / nucleoplasm / ATP binding / cytosol / cytoplasm Similarity search - Function | ||||||||||||||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 7.7 Å | ||||||||||||||||||||||||
Authors | Gestaut, D.R. / Roh, S.H. / Ma, B. / Pintilie, G. / Joachimiak, L.A. / Leitner, A. / Walzthoeni, T. / Aebersold, R. / Chiu, W. / Frydman, J. | ||||||||||||||||||||||||
Funding support | United States, European Union, 7items
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Citation | Journal: Cell / Year: 2019 Title: The Chaperonin TRiC/CCT Associates with Prefoldin through a Conserved Electrostatic Interface Essential for Cellular Proteostasis. Authors: Daniel Gestaut / Soung Hun Roh / Boxue Ma / Grigore Pintilie / Lukasz A Joachimiak / Alexander Leitner / Thomas Walzthoeni / Ruedi Aebersold / Wah Chiu / Judith Frydman / 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 ...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. | ||||||||||||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6nra.cif.gz | 1.3 MB | Display | PDBx/mmCIF format |
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PDB format | pdb6nra.ent.gz | 1 MB | Display | PDB format |
PDBx/mmJSON format | 6nra.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6nra_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
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Full document | 6nra_full_validation.pdf.gz | 1.6 MB | Display | |
Data in XML | 6nra_validation.xml.gz | 225.1 KB | Display | |
Data in CIF | 6nra_validation.cif.gz | 336.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/nr/6nra ftp://data.pdbj.org/pub/pdb/validation_reports/nr/6nra | HTTPS FTP |
-Related structure data
Related structure data | 0492MC 0490C 0491C 0493C 0494C 0495C 0496C 6nr8C 6nr9C 6nrbC 6nrcC 6nrdC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-T-complex protein 1 subunit ... , 8 types, 16 molecules AIBJCKDLEMFNGOHP
#1: Protein | Mass: 58061.055 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: TCP1, CCT1, CCTA Production host: Insect cell expression vector pTIE1 (others) References: UniProt: P17987 #2: Protein | Mass: 54736.742 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CCT2, 99D8.1, CCTB Production host: Insect cell expression vector pTIE1 (others) References: UniProt: P78371 #3: Protein | Mass: 57165.945 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CCT3, CCTG, TRIC5 Production host: Insect cell expression vector pTIE1 (others) References: UniProt: P49368 #4: Protein | Mass: 55636.500 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CCT4, CCTD, SRB Production host: Insect cell expression vector pTIE1 (others) References: UniProt: P50991 #5: Protein | Mass: 56989.797 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CCT5, CCTE, KIAA0098 Production host: Insect cell expression vector pTIE1 (others) References: UniProt: P48643 #6: Protein | Mass: 56445.008 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CCT6A, CCT6, CCTZ Production host: Insect cell expression vector pTIE1 (others) References: UniProt: P40227 #7: Protein | Mass: 56369.867 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CCT7, CCTH, NIP7-1 Production host: Insect cell expression vector pTIE1 (others) References: UniProt: Q99832 #8: Protein | Mass: 56102.406 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CCT8, C21orf112, CCTQ, KIAA0002 Production host: Insect cell expression vector pTIE1 (others) References: UniProt: P50990 |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: hTRiC / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Insect cell expression vector pTIE1 (others) |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: unspecified |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Microscopy | Model: JEOL 3200FSC |
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Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 48 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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Symmetry | Point symmetry: C1 (asymmetric) |
3D reconstruction | Resolution: 7.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 38323 / Symmetry type: POINT |