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Open data
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Basic information
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| Title | Cryo-EM Structure of the KBTBD2-CRL3~N8(removed)-CSN complex | |||||||||
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Keywords | ligase / complex | |||||||||
| Function / homology | Function and homology informationCOP9 signalosome assembly / trophectodermal cell proliferation / macrophage migration inhibitory factor binding / positive regulation of mitotic cell cycle phase transition / trophectodermal cellular morphogenesis / liver morphogenesis / POZ domain binding / regulation of IRE1-mediated unfolded protein response / exosomal secretion / GTPase inhibitor activity ...COP9 signalosome assembly / trophectodermal cell proliferation / macrophage migration inhibitory factor binding / positive regulation of mitotic cell cycle phase transition / trophectodermal cellular morphogenesis / liver morphogenesis / POZ domain binding / regulation of IRE1-mediated unfolded protein response / exosomal secretion / GTPase inhibitor activity / deNEDDylase activity / protein deneddylation / nuclear protein quality control by the ubiquitin-proteasome system / polar microtubule / eukaryotic translation initiation factor 3 complex / regulation of protein neddylation / regulation protein catabolic process at postsynapse / COPII vesicle coating / anaphase-promoting complex-dependent catabolic process / activation of NF-kappaB-inducing kinase activity / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / COP9 signalosome / cullin-RING ubiquitin ligase complex / RHOBTB3 ATPase cycle / positive regulation of mitotic metaphase/anaphase transition / embryonic cleavage / cellular response to chemical stress / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / cell projection organization / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / positive regulation of protein autoubiquitination / RNA polymerase II transcription initiation surveillance / protein neddylation / Notch binding / metal-dependent deubiquitinase activity / regulation of JNK cascade / NEDD8 ligase activity / fibroblast apoptotic process / Hydrolases; Acting on peptide bonds (peptidases) / VCB complex / RHOBTB1 GTPase cycle / negative regulation of response to oxidative stress / Cul5-RING ubiquitin ligase complex / regulation of DNA damage response, signal transduction by p53 class mediator / inner cell mass cell proliferation / SCF ubiquitin ligase complex / negative regulation of type I interferon production / Cul2-RING ubiquitin ligase complex / stem cell division / ubiquitin-ubiquitin ligase activity / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul4A-RING E3 ubiquitin ligase complex / Cul4-RING E3 ubiquitin ligase complex / mitotic metaphase chromosome alignment / Cul3-RING ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / stress fiber assembly / ubiquitin ligase complex scaffold activity / negative regulation of Rho protein signal transduction / negative regulation of mitophagy / Prolactin receptor signaling / positive regulation of cytokinesis / response to light stimulus / cullin family protein binding / skeletal muscle cell differentiation / protein monoubiquitination / endoplasmic reticulum to Golgi vesicle-mediated transport / sperm flagellum / positive regulation of DNA-binding transcription factor activity / RHOBTB2 GTPase cycle / ubiquitin-like ligase-substrate adaptor activity / protein K48-linked ubiquitination / protein autoubiquitination / Nuclear events stimulated by ALK signaling in cancer / gastrulation / JNK cascade / transcription-coupled nucleotide-excision repair / translation initiation factor activity / positive regulation of TORC1 signaling / regulation of cellular response to insulin stimulus / intrinsic apoptotic signaling pathway / negative regulation of insulin receptor signaling pathway / post-translational protein modification / cyclin binding / Regulation of BACH1 activity / T cell activation / positive regulation of protein ubiquitination / integrin-mediated signaling pathway / Degradation of DVL / cellular response to amino acid stimulus / kidney development / phosphatidylinositol 3-kinase/protein kinase B signal transduction / Degradation of GLI1 by the proteasome / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Recognition of DNA damage by PCNA-containing replication complex / Negative regulation of NOTCH4 signaling / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 7.51 Å | |||||||||
Authors | Hu Y / Mao Q / Chen Z / Sun L | |||||||||
| Funding support | China, 1 items
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Citation | Journal: Nat Struct Mol Biol / Year: 2024Title: Dynamic molecular architecture and substrate recruitment of cullin3-RING E3 ligase CRL3. Authors: Yuxia Hu / Zhao Zhang / Qiyu Mao / Xiang Zhang / Aihua Hao / Yu Xun / Yeda Wang / Lin Han / Wuqiang Zhan / Qianying Liu / Yue Yin / Chao Peng / Eva Marie Y Moresco / Zhenguo Chen / Bruce Beutler / Lei Sun / ![]() Abstract: Phosphatidylinositol 3-kinase α, a heterodimer of catalytic p110α and one of five regulatory subunits, mediates insulin- and insulin like growth factor-signaling and, frequently, oncogenesis. ...Phosphatidylinositol 3-kinase α, a heterodimer of catalytic p110α and one of five regulatory subunits, mediates insulin- and insulin like growth factor-signaling and, frequently, oncogenesis. Cellular levels of the regulatory p85α subunit are tightly controlled by regulated proteasomal degradation. In adipose tissue and growth plates, failure of K48-linked p85α ubiquitination causes diabetes, lipodystrophy and dwarfism in mice, as in humans with SHORT syndrome. Here we elucidated the structures of the key ubiquitin ligase complexes regulating p85α availability. Specificity is provided by the substrate receptor KBTBD2, which recruits p85α to the cullin3-RING E3 ubiquitin ligase (CRL3). CRL3 forms multimers, which disassemble into dimers upon substrate binding (CRL3-p85α) and/or neddylation by the activator NEDD8 (CRL3~N8), leading to p85α ubiquitination and degradation. Deactivation involves dissociation of NEDD8 mediated by the COP9 signalosome and displacement of KBTBD2 by the inhibitor CAND1. The hereby identified structural basis of p85α regulation opens the way to better understanding disturbances of glucose regulation, growth and cancer. | |||||||||
| History |
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_34462.map.gz | 34.2 MB | EMDB map data format | |
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| Header (meta data) | emd-34462-v30.xml emd-34462.xml | 31.1 KB 31.1 KB | Display Display | EMDB header |
| Images | emd_34462.png | 99.3 KB | ||
| Filedesc metadata | emd-34462.cif.gz | 9.1 KB | ||
| Others | emd_34462_half_map_1.map.gz emd_34462_half_map_2.map.gz | 29.6 MB 29.6 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-34462 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-34462 | HTTPS FTP |
-Validation report
| Summary document | emd_34462_validation.pdf.gz | 658 KB | Display | EMDB validaton report |
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| Full document | emd_34462_full_validation.pdf.gz | 657.6 KB | Display | |
| Data in XML | emd_34462_validation.xml.gz | 10.8 KB | Display | |
| Data in CIF | emd_34462_validation.cif.gz | 12.6 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-34462 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-34462 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8h3aMC ![]() 8gq6C ![]() 8h33C ![]() 8h34C ![]() 8h35C ![]() 8h36C ![]() 8h37C ![]() 8h38C ![]() 8h3fC ![]() 8h3qC ![]() 8h3rC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_34462.map.gz / Format: CCP4 / Size: 38.4 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 2.088 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_34462_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_34462_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
+Entire : Cryo-EM Structure of the KBTBD2-CRL3~N8-CSN complex
+Supramolecule #1: Cryo-EM Structure of the KBTBD2-CRL3~N8-CSN complex
+Supramolecule #2: CSN
+Supramolecule #3: KBTBD2, Cullin-3, Rbx1
+Macromolecule #1: COP9 signalosome complex subunit 5
+Macromolecule #2: COP9 signalosome complex subunit 1
+Macromolecule #3: COP9 signalosome complex subunit 2
+Macromolecule #4: COP9 signalosome complex subunit 3
+Macromolecule #5: COP9 signalosome complex subunit 4
+Macromolecule #6: COP9 signalosome complex subunit 6
+Macromolecule #7: COP9 signalosome complex subunit 7b
+Macromolecule #8: COP9 signalosome complex subunit 8
+Macromolecule #9: Kelch repeat and BTB domain-containing protein 2
+Macromolecule #10: Cullin-3
+Macromolecule #11: E3 ubiquitin-protein ligase RBX1
+Macromolecule #12: ZINC ION
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.8 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 53.0 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: 2.2 µm / Nominal defocus min: 1.2 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
| Startup model | Type of model: PDB ENTRY PDB model - PDB ID: Details: 6r7f |
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| Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 7.51 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.0) / Number images used: 55391 |
| Initial angle assignment | Type: PROJECTION MATCHING |
| Final angle assignment | Type: PROJECTION MATCHING |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
China, 1 items
Citation









































Z (Sec.)
Y (Row.)
X (Col.)




































Trichoplusia ni (cabbage looper)
FIELD EMISSION GUN

