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Yorodumi- EMDB-42009: KCTD5/Cullin3/Gbeta1gamma2 Complex State D: Reference Map for Com... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-42009 | |||||||||
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Title | KCTD5/Cullin3/Gbeta1gamma2 Complex State D: Reference Map for Composite Map EMD-42008 | |||||||||
Map data | KCTD5:Cullin3:GBetaGamma StateD Reference Map: Full Map | |||||||||
Sample |
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Keywords | cullin family protein / proteasome-mediated ubiquitin-dependent protein catabolic process / complex / ubiquitin-dependent protein catabolic process / CYTOSOLIC PROTEIN | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.98 Å | |||||||||
Authors | Nguyen DM / Narayanan N / Kuntz DA / Prive GG | |||||||||
Funding support | Canada, 1 items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2024 Title: Structure and dynamics of a pentameric KCTD5/CUL3/Gβγ E3 ubiquitin ligase complex. Authors: Duc Minh Nguyen / Deanna H Rath / Dominic Devost / Darlaine Pétrin / Robert Rizk / Alan X Ji / Naveen Narayanan / Darren Yong / Andrew Zhai / Douglas A Kuntz / Maha U Q Mian / Neil C Pomroy ...Authors: Duc Minh Nguyen / Deanna H Rath / Dominic Devost / Darlaine Pétrin / Robert Rizk / Alan X Ji / Naveen Narayanan / Darren Yong / Andrew Zhai / Douglas A Kuntz / Maha U Q Mian / Neil C Pomroy / Alexander F A Keszei / Samir Benlekbir / Mohammad T Mazhab-Jafari / John L Rubinstein / Terence E Hébert / Gilbert G Privé / Abstract: Heterotrimeric G proteins can be regulated by posttranslational modifications, including ubiquitylation. KCTD5, a pentameric substrate receptor protein consisting of an N-terminal BTB domain and a C- ...Heterotrimeric G proteins can be regulated by posttranslational modifications, including ubiquitylation. KCTD5, a pentameric substrate receptor protein consisting of an N-terminal BTB domain and a C-terminal domain, engages CUL3 to form the central scaffold of a cullin-RING E3 ligase complex (CRL3) that ubiquitylates Gβγ and reduces Gβγ protein levels in cells. The cryo-EM structure of a 5:5:5 KCTD5/CUL3/Gβγ assembly reveals a highly dynamic complex with rotations of over 60° between the KCTD5/CUL3 and KCTD5/Gβγ moieties of the structure. CRL3 engages the E3 ligase ARIH1 to ubiquitylate Gβγ in an E3-E3 superassembly, and extension of the structure to include full-length CUL3 with RBX1 and an ARIH1~ubiquitin conjugate reveals that some conformational states position the ARIH1~ubiquitin thioester bond to within 10 Å of lysine-23 of Gβ and likely represent priming complexes. Most previously described CRL/substrate structures have consisted of monovalent complexes and have involved flexible peptide substrates. The structure of the KCTD5/CUL3/Gβγ complex shows that the oligomerization of a substrate receptor can generate a polyvalent E3 ligase complex and that the internal dynamics of the substrate receptor can position a structured target for ubiquitylation in a CRL3 complex. #1: Journal: Biorxiv / Year: 2023 Title: Structure and dynamics of a pentameric KCTD5/Cullin3/G beta gamma E3 ubiquitin ligase complex Authors: Nguyen DM / Rath DH / Devost D / Petrin D / Rizk R / Ji AX / Narayanan N / Yong D / Zhai A / Kuntz DA / Mian MUQ / Pomroy NC / Keszei AFE / Benlekbir S / Mazhab-Jafari MT / Rubinstein JL / Hebert TE / Prive GG | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_42009.map.gz | 101.5 MB | EMDB map data format | |
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Header (meta data) | emd-42009-v30.xml emd-42009.xml | 15.7 KB 15.7 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_42009_fsc.xml | 11.5 KB | Display | FSC data file |
Images | emd_42009.png | 111.7 KB | ||
Masks | emd_42009_msk_1.map | 129.7 MB | Mask map | |
Filedesc metadata | emd-42009.cif.gz | 4.6 KB | ||
Others | emd_42009_half_map_1.map.gz emd_42009_half_map_2.map.gz | 102 MB 102 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-42009 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-42009 | HTTPS FTP |
-Validation report
Summary document | emd_42009_validation.pdf.gz | 830.6 KB | Display | EMDB validaton report |
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Full document | emd_42009_full_validation.pdf.gz | 830.2 KB | Display | |
Data in XML | emd_42009_validation.xml.gz | 18.5 KB | Display | |
Data in CIF | emd_42009_validation.cif.gz | 23.4 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-42009 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-42009 | HTTPS FTP |
-Related structure data
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_42009.map.gz / Format: CCP4 / Size: 129.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | KCTD5:Cullin3:GBetaGamma StateD Reference Map: Full Map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.03 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_42009_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: KCTD5:Cullin3:GBetaGamma StateD Reference Map: Half Map 1
File | emd_42009_half_map_1.map | ||||||||||||
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Annotation | KCTD5:Cullin3:GBetaGamma StateD Reference Map: Half Map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: KCTD5:Cullin3:GBetaGamma StateD Reference Map: Half Map 2
File | emd_42009_half_map_2.map | ||||||||||||
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Annotation | KCTD5:Cullin3:GBetaGamma StateD Reference Map: Half Map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Complex of substrate adaptor KCTD5 with Cullin-3 and substrate Gb...
Entire | Name: Complex of substrate adaptor KCTD5 with Cullin-3 and substrate Gbeta-gamma |
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Components |
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-Supramolecule #1: Complex of substrate adaptor KCTD5 with Cullin-3 and substrate Gb...
Supramolecule | Name: Complex of substrate adaptor KCTD5 with Cullin-3 and substrate Gbeta-gamma type: complex / ID: 1 / Parent: 0 |
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Source (natural) | Organism: Homo sapiens (human) |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Number real images: 7464 / Average electron dose: 49.35 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.25 µm / Nominal magnification: 75000 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
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