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- EMDB-12607: Human TRiC complex in closed state with nanobody and tubulin bound -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-12607 | |||||||||
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Title | Human TRiC complex in closed state with nanobody and tubulin bound | |||||||||
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![]() | TRiC / CCT / ATP hydrolysis / type II chaperonin / protein folding / tubulin / CHAPERONE | |||||||||
Function / homology | ![]() Post-chaperonin tubulin folding pathway / positive regulation of establishment of protein localization to telomere / zona pellucida receptor complex / Cilium Assembly / positive regulation of protein localization to Cajal body / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Carboxyterminal post-translational modifications of tubulin / scaRNA localization to Cajal body / positive regulation of telomerase RNA localization to Cajal body / tubulin complex assembly ...Post-chaperonin tubulin folding pathway / positive regulation of establishment of protein localization to telomere / zona pellucida receptor complex / Cilium Assembly / positive regulation of protein localization to Cajal body / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Carboxyterminal post-translational modifications of tubulin / scaRNA localization to Cajal body / positive regulation of telomerase RNA localization to Cajal body / tubulin complex assembly / chaperonin-containing T-complex / : / Intraflagellar transport / BBSome-mediated cargo-targeting to cilium / Sealing of the nuclear envelope (NE) by ESCRT-III / Formation of tubulin folding intermediates by CCT/TriC / Folding of actin by CCT/TriC / binding of sperm to zona pellucida / Gap junction assembly / Prefoldin mediated transfer of substrate to CCT/TriC / COPI-independent Golgi-to-ER retrograde traffic / Kinesins / Assembly and cell surface presentation of NMDA receptors / RHOBTB1 GTPase cycle / WD40-repeat domain binding / COPI-dependent Golgi-to-ER retrograde traffic / pericentriolar material / beta-tubulin binding / Association of TriC/CCT with target proteins during biosynthesis / Recycling pathway of L1 / RHO GTPases activate IQGAPs / chaperone-mediated protein complex assembly / heterochromatin / RHOBTB2 GTPase cycle / intercellular bridge / Hedgehog 'off' state / Activation of AMPK downstream of NMDARs / COPI-mediated anterograde transport / : / positive regulation of telomere maintenance via telomerase / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / protein folding chaperone / MHC class II antigen presentation / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / Recruitment of NuMA to mitotic centrosomes / Resolution of Sister Chromatid Cohesion / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / acrosomal vesicle / mRNA 3'-UTR binding / cell projection / Translocation of SLC2A4 (GLUT4) to the plasma membrane / RHO GTPases Activate Formins / ATP-dependent protein folding chaperone / PKR-mediated signaling / cerebral cortex development / response to virus / structural constituent of cytoskeleton / microtubule cytoskeleton organization / mRNA 5'-UTR binding / HCMV Early Events / neuron migration / Aggrephagy / mitotic spindle / Separation of Sister Chromatids / The role of GTSE1 in G2/M progression after G2 checkpoint / azurophil granule lumen / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / unfolded protein binding / melanosome / G-protein beta-subunit binding / protein folding / extracellular vesicle / mitotic cell cycle / microtubule cytoskeleton / cell body / secretory granule lumen / microtubule / ficolin-1-rich granule lumen / cytoskeleton / protein stabilization / cilium / cadherin binding / GTPase activity / centrosome / ubiquitin protein ligase binding / Neutrophil degranulation / GTP binding / Golgi apparatus / ATP hydrolysis activity / RNA binding / extracellular exosome / extracellular region / nucleoplasm / ATP binding / metal ion binding / identical protein binding / nucleus / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||
![]() | Kelly JJ / Chi G | |||||||||
![]() | ![]() Title: Snapshots of actin and tubulin folding inside the TRiC chaperonin. Authors: John J Kelly / Dale Tranter / Els Pardon / Gamma Chi / Holger Kramer / Lotta Happonen / Kelly M Knee / Jay M Janz / Jan Steyaert / Christine Bulawa / Ville O Paavilainen / Juha T Huiskonen / Wyatt W Yue / ![]() ![]() ![]() ![]() ![]() Abstract: The integrity of a cell's proteome depends on correct folding of polypeptides by chaperonins. The chaperonin TCP-1 ring complex (TRiC) acts as obligate folder for >10% of cytosolic proteins, ...The integrity of a cell's proteome depends on correct folding of polypeptides by chaperonins. The chaperonin TCP-1 ring complex (TRiC) acts as obligate folder for >10% of cytosolic proteins, including he cytoskeletal proteins actin and tubulin. Although its architecture and how it recognizes folding substrates are emerging from structural studies, the subsequent fate of substrates inside the TRiC chamber is not defined. We trapped endogenous human TRiC with substrates (actin, tubulin) and cochaperone (PhLP2A) at different folding stages, for structure determination by cryo-EM. The already-folded regions of client proteins are anchored at the chamber wall, positioning unstructured regions toward the central space to achieve their native fold. Substrates engage with different sections of the chamber during the folding cycle, coupled to TRiC open-and-close transitions. Further, the cochaperone PhLP2A modulates folding, acting as a molecular strut between substrate and TRiC chamber. Our structural snapshots piece together an emerging model of client protein folding within TRiC. | |||||||||
History |
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Structure visualization
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 228.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 29.8 KB 29.8 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 14.2 KB | Display | ![]() |
Images | ![]() | 215.6 KB | ||
Masks | ![]() | 244.1 MB | ![]() | |
Filedesc metadata | ![]() | 9.1 KB | ||
Others | ![]() ![]() | 194 MB 194 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7nvnMC ![]() 7nvlC ![]() 7nvmC ![]() 7nvoC C: citing same article ( M: atomic model generated by this map |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_12607_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_12607_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
+Entire : Human type II chaperonin TRiC/CCT complex with nanobody Nb18 and ...
+Supramolecule #1: Human type II chaperonin TRiC/CCT complex with nanobody Nb18 and ...
+Supramolecule #2: Human type II chaperonin TRiC/CCT complex
+Supramolecule #3: Nanobody
+Supramolecule #4: T-complex protein 1 subunit epsilon
+Macromolecule #1: T-complex protein 1 subunit alpha
+Macromolecule #2: T-complex protein 1 subunit beta
+Macromolecule #3: T-complex protein 1 subunit delta
+Macromolecule #4: T-complex protein 1 subunit epsilon
+Macromolecule #5: T-complex protein 1 subunit gamma
+Macromolecule #6: T-complex protein 1 subunit eta
+Macromolecule #7: Nanobody
+Macromolecule #8: T-complex protein 1 subunit theta
+Macromolecule #9: T-complex protein 1 subunit zeta
+Macromolecule #10: Tubulin beta-2A chain
+Macromolecule #11: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #12: MAGNESIUM ION
+Macromolecule #13: ALUMINUM FLUORIDE
+Macromolecule #14: water
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 43.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |