Protein or peptide: T-complex protein 1 subunit alpha
Protein or peptide: T-complex protein 1 subunit beta
Protein or peptide: T-complex protein 1 subunit delta
Protein or peptide: T-complex protein 1 subunit epsilon
Protein or peptide: T-complex protein 1 subunit gamma
Protein or peptide: T-complex protein 1 subunit eta
Protein or peptide: T-complex protein 1 subunit theta
Protein or peptide: T-complex protein 1 subunit zeta
Ligand: ADENOSINE-5'-DIPHOSPHATE
Keywords
CCT / folding / WD40 / mLST8 / CHAPERONE
Function / homology
Function and homology information
zona pellucida receptor complex / positive regulation of protein localization to Cajal body / scaRNA localization to Cajal body / positive regulation of establishment of protein localization to telomere / positive regulation of telomerase RNA localization to Cajal body / tubulin complex assembly / chaperonin-containing T-complex / : / BBSome-mediated cargo-targeting to cilium / Folding of actin by CCT/TriC ...zona pellucida receptor complex / positive regulation of protein localization to Cajal body / scaRNA localization to Cajal body / positive regulation of establishment of protein localization to telomere / positive regulation of telomerase RNA localization to Cajal body / tubulin complex assembly / chaperonin-containing T-complex / : / BBSome-mediated cargo-targeting to cilium / Folding of actin by CCT/TriC / Formation of tubulin folding intermediates by CCT/TriC / binding of sperm to zona pellucida / 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 / heterochromatin / chaperone-mediated protein complex assembly / RHOBTB2 GTPase cycle / : / positive regulation of telomere maintenance via telomerase / protein folding chaperone / 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 / azurophil granule lumen / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / G-protein beta-subunit binding / unfolded protein binding / melanosome / protein folding / cell body / secretory granule lumen / microtubule / ficolin-1-rich granule lumen / 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 / identical protein binding / cytosol / cytoplasm Similarity search - Function
T-complex protein 1, alpha subunit / T-complex protein 1, eta subunit / T-complex protein 1, theta subunit / T-complex protein 1, zeta subunit / T-complex protein 1, delta subunit / T-complex protein 1, gamma subunit / T-complex protein 1, epsilon subunit / T-complex protein 1, beta subunit / : / Chaperonins TCP-1 signature 1. ...T-complex protein 1, alpha subunit / T-complex protein 1, eta subunit / T-complex protein 1, theta subunit / T-complex protein 1, zeta subunit / T-complex protein 1, delta subunit / T-complex protein 1, gamma subunit / T-complex protein 1, epsilon subunit / T-complex protein 1, beta subunit / : / Chaperonins TCP-1 signature 1. / : / Chaperonins TCP-1 signature 2. / Chaperonin TCP-1, conserved site / Chaperonins TCP-1 signature 3. / Chaperone tailless complex polypeptide 1 (TCP-1) / GroEL-like equatorial domain superfamily / TCP-1-like chaperonin intermediate domain superfamily / GroEL-like apical domain superfamily / TCP-1/cpn60 chaperonin family / Chaperonin Cpn60/GroEL/TCP-1 family Similarity search - Domain/homology
T-complex protein 1 subunit alpha / T-complex protein 1 subunit zeta / T-complex protein 1 subunit epsilon / T-complex protein 1 subunit gamma / T-complex protein 1 subunit theta / T-complex protein 1 subunit delta / T-complex protein 1 subunit beta / T-complex protein 1 subunit eta Similarity search - Component
Biological species
Homo sapiens (human)
Method
single particle reconstruction / cryo EM / Resolution: 3.97 Å
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)
EY012287
United States
Spanish Ministry of Science, Innovation, and Universities
BFU2016-75984
Spain
Citation
Journal: Nat Commun / Year: 2019 Title: Structural and functional analysis of the role of the chaperonin CCT in mTOR complex assembly. Authors: Jorge Cuéllar / W Grant Ludlam / Nicole C Tensmeyer / Takuma Aoba / Madhura Dhavale / César Santiago / M Teresa Bueno-Carrasco / Michael J Mann / Rebecca L Plimpton / Aman Makaju / Sarah ...Authors: Jorge Cuéllar / W Grant Ludlam / Nicole C Tensmeyer / Takuma Aoba / Madhura Dhavale / César Santiago / M Teresa Bueno-Carrasco / Michael J Mann / Rebecca L Plimpton / Aman Makaju / Sarah Franklin / Barry M Willardson / José M Valpuesta / Abstract: The mechanistic target of rapamycin (mTOR) kinase forms two multi-protein signaling complexes, mTORC1 and mTORC2, which are master regulators of cell growth, metabolism, survival and autophagy. Two ...The mechanistic target of rapamycin (mTOR) kinase forms two multi-protein signaling complexes, mTORC1 and mTORC2, which are master regulators of cell growth, metabolism, survival and autophagy. Two of the subunits of these complexes are mLST8 and Raptor, β-propeller proteins that stabilize the mTOR kinase and recruit substrates, respectively. Here we report that the eukaryotic chaperonin CCT plays a key role in mTORC assembly and signaling by folding both mLST8 and Raptor. A high resolution (4.0 Å) cryo-EM structure of the human mLST8-CCT intermediate isolated directly from cells shows mLST8 in a near-native state bound to CCT deep within the folding chamber between the two CCT rings, and interacting mainly with the disordered N- and C-termini of specific CCT subunits of both rings. These findings describe a unique function of CCT in mTORC assembly and a distinct binding site in CCT for mLST8, far from those found for similar β-propeller proteins.
History
Deposition
Dec 20, 2018
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Header (metadata) release
Jan 9, 2019
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Map release
Jul 3, 2019
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Update
Oct 9, 2024
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Current status
Oct 9, 2024
Processing site: PDBe / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
Protein or peptide: T-complex protein 1 subunit alpha
Protein or peptide: T-complex protein 1 subunit beta
Protein or peptide: T-complex protein 1 subunit delta
Protein or peptide: T-complex protein 1 subunit epsilon
Protein or peptide: T-complex protein 1 subunit gamma
Protein or peptide: T-complex protein 1 subunit eta
Protein or peptide: T-complex protein 1 subunit theta
Protein or peptide: T-complex protein 1 subunit zeta
Ligand: ADENOSINE-5'-DIPHOSPHATE
+
Supramolecule #1: CCT:mLST8 complex
Supramolecule
Name: CCT:mLST8 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#8 Details: we have characterized the complex between the eukaryotic chaperonin CCT (1 MDa; formed by two copies of eight homologous subunits) and its substrate mLST8 (mammalian Lethal with SEC13 ...Details: we have characterized the complex between the eukaryotic chaperonin CCT (1 MDa; formed by two copies of eight homologous subunits) and its substrate mLST8 (mammalian Lethal with SEC13 protein 8, also called Gbeta-like protein)
Source (natural)
Organism: Homo sapiens (human)
Molecular weight
Theoretical: 1 MDa
+
Macromolecule #1: T-complex protein 1 subunit alpha
Macromolecule
Name: T-complex protein 1 subunit alpha / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Model: Quantifoil R2/2 / Material: COPPER/RHODIUM / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 15 sec.
Vitrification
Cryogen name: ETHANE
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Electron microscopy
Microscope
FEI TITAN KRIOS
Specialist optics
Energy filter - Name: GIF Quantum LS
Image recording
Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 2 / Number real images: 5576 / Average exposure time: 7.0 sec. / Average electron dose: 36.0 e/Å2
Electron beam
Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron optics
Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal magnification: 105000
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