+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-35122 | |||||||||
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Title | Human TRiC-PhLP2A complex in the closed state | |||||||||
Map data | A primary EM map | |||||||||
Sample |
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Keywords | chaperonin complex / CHAPERONE / cochaperone | |||||||||
Function / homology | Function and homology information negative regulation of chaperone-mediated protein folding / perinucleolar compartment / 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 / BBSome-mediated cargo-targeting to cilium / chaperonin-containing T-complex ...negative regulation of chaperone-mediated protein folding / perinucleolar compartment / 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 / BBSome-mediated cargo-targeting to cilium / chaperonin-containing T-complex / 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 / vascular endothelial growth factor receptor 2 binding / 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 / negative regulation of ubiquitin-dependent protein catabolic process / heterochromatin / regulation of peptidyl-tyrosine phosphorylation / chaperone-mediated protein folding / protein folding chaperone / positive regulation of endothelial cell proliferation / 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 / positive regulation of angiogenesis / 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 / actin cytoskeleton organization / angiogenesis / secretory granule lumen / ficolin-1-rich granule lumen / microtubule / cytoskeleton / protein stabilization / cadherin binding / centrosome / ubiquitin protein ligase binding / Neutrophil degranulation / positive regulation of gene expression / apoptotic process / perinuclear region of cytoplasm / Golgi apparatus / endoplasmic reticulum / ATP hydrolysis activity / protein-containing complex / RNA binding / extracellular exosome / extracellular region / nucleoplasm / ATP binding / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.24 Å | |||||||||
Authors | Roh SH / Park J / Kim H / Lim S | |||||||||
Funding support | Korea, Republic Of, 1 items
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Citation | Journal: Nat Commun / Year: 2024 Title: A structural vista of phosducin-like PhLP2A-chaperonin TRiC cooperation during the ATP-driven folding cycle. Authors: Junsun Park / Hyunmin Kim / Daniel Gestaut / Seyeon Lim / Kwadwo A Opoku-Nsiah / Alexander Leitner / Judith Frydman / Soung-Hun Roh / Abstract: Proper cellular proteostasis, essential for viability, requires a network of chaperones and cochaperones. ATP-dependent chaperonin TRiC/CCT partners with cochaperones prefoldin (PFD) and phosducin- ...Proper cellular proteostasis, essential for viability, requires a network of chaperones and cochaperones. ATP-dependent chaperonin TRiC/CCT partners with cochaperones prefoldin (PFD) and phosducin-like proteins (PhLPs) to facilitate folding of essential eukaryotic proteins. Using cryoEM and biochemical analyses, we determine the ATP-driven cycle of TRiC-PFD-PhLP2A interaction. PhLP2A binds to open apo-TRiC through polyvalent domain-specific contacts with its chamber's equatorial and apical regions. PhLP2A N-terminal H3-domain binding to subunits CCT3/4 apical domains displace PFD from TRiC. ATP-induced TRiC closure rearranges the contacts of PhLP2A domains within the closed chamber. In the presence of substrate, actin and PhLP2A segregate into opposing chambers, each binding to positively charged inner surface residues from CCT1/3/6/8. Notably, actin induces a conformational change in PhLP2A, causing its N-terminal helices to extend across the inter-ring interface to directly contact a hydrophobic groove in actin. Our findings reveal an ATP-driven PhLP2A structural rearrangement cycle within the TRiC chamber to facilitate folding. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_35122.map.gz | 118.2 MB | EMDB map data format | |
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Header (meta data) | emd-35122-v30.xml emd-35122.xml | 40.3 KB 40.3 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_35122_fsc.xml | 10.5 KB | Display | FSC data file |
Images | emd_35122.png | 81.1 KB | ||
Filedesc metadata | emd-35122.cif.gz | 10.1 KB | ||
Others | emd_35122_additional_1.map.gz emd_35122_additional_2.map.gz emd_35122_additional_3.map.gz emd_35122_half_map_1.map.gz emd_35122_half_map_2.map.gz | 96.5 MB 96.3 MB 117.9 MB 116.2 MB 116.2 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-35122 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-35122 | HTTPS FTP |
-Validation report
Summary document | emd_35122_validation.pdf.gz | 1.3 MB | Display | EMDB validaton report |
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Full document | emd_35122_full_validation.pdf.gz | 1.3 MB | Display | |
Data in XML | emd_35122_validation.xml.gz | 19.5 KB | Display | |
Data in CIF | emd_35122_validation.cif.gz | 24.9 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35122 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35122 | HTTPS FTP |
-Related structure data
Related structure data | 8i1uMC 8i6jC 8i9qC 8i9uC 8ib8C C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_35122.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | A primary EM map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.08 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: Additional map of TRiC with truncated PhLP2A mutant(TXD-CTD)...
File | emd_35122_additional_1.map | ||||||||||||
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Annotation | Additional map of TRiC with truncated PhLP2A mutant(TXD-CTD) in the closed state | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Additional map of TRiC with truncated PhLP2A mutant(NTD-TXD)...
File | emd_35122_additional_2.map | ||||||||||||
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Annotation | Additional map of TRiC with truncated PhLP2A mutant(NTD-TXD) in the closed state | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Additional map of TRiC with truncated PhLP2A mutant(TXD)...
File | emd_35122_additional_3.map | ||||||||||||
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Annotation | Additional map of TRiC with truncated PhLP2A mutant(TXD) in the closed state | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: An EM half map
File | emd_35122_half_map_1.map | ||||||||||||
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Annotation | An EM half map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: An EM half map
File | emd_35122_half_map_2.map | ||||||||||||
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Annotation | An EM half map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Complex of TRiC/CCT-PhLP2A treated with ATP-AlFx
+Supramolecule #1: Complex of TRiC/CCT-PhLP2A treated with ATP-AlFx
+Supramolecule #2: Human TRiC/CCT complex
+Supramolecule #3: PhLP2A (PDCL3)
+Macromolecule #1: T-complex protein 1 subunit alpha
+Macromolecule #2: T-complex protein 1 subunit beta
+Macromolecule #3: T-complex protein 1 subunit gamma
+Macromolecule #4: T-complex protein 1 subunit delta
+Macromolecule #5: T-complex protein 1 subunit epsilon
+Macromolecule #6: T-complex protein 1 subunit zeta
+Macromolecule #7: T-complex protein 1 subunit eta
+Macromolecule #8: T-complex protein 1 subunit theta
+Macromolecule #9: Phosducin-like protein 3
+Macromolecule #10: ADENOSINE-5'-DIPHOSPHATE
+Macromolecule #11: MAGNESIUM ION
+Macromolecule #12: ALUMINUM FLUORIDE
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | 2D array |
-Sample preparation
Buffer | pH: 7.4 Component:
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Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 200 / Support film - Material: CARBON / Support film - topology: HOLEY | |||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TALOS ARCTICA |
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Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Detector mode: COUNTING / Digitization - Dimensions - Width: 4096 pixel / Digitization - Dimensions - Height: 4096 pixel / Number real images: 1368 / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |