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- PDB-8h3a: Cryo-EM Structure of the KBTBD2-CRL3~N8(removed)-CSN complex -

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Basic information

Entry
Database: PDB / ID: 8h3a
TitleCryo-EM Structure of the KBTBD2-CRL3~N8(removed)-CSN complex
Components
  • (COP9 signalosome complex subunit ...) x 8
  • Cullin-3
  • E3 ubiquitin-protein ligase RBX1
  • Kelch repeat and BTB domain-containing protein 2
KeywordsLIGASE / complex
Function / homology
Function and homology information


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 ...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 / regulation of protein neddylation / polar microtubule / eukaryotic translation initiation factor 3 complex / activation of NF-kappaB-inducing kinase activity / COPII vesicle coating / anaphase-promoting complex-dependent catabolic process / regulation protein catabolic process at postsynapse / cullin-RING-type E3 NEDD8 transferase / RHOBTB3 ATPase cycle / NEDD8 transferase activity / COP9 signalosome / cell projection organization / cullin-RING ubiquitin ligase complex / 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 / stem cell division / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / positive regulation of protein autoubiquitination / protein neddylation / regulation of JNK cascade / Hydrolases; Acting on peptide bonds (peptidases) / Notch binding / metal-dependent deubiquitinase activity / NEDD8 ligase activity / fibroblast apoptotic process / 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 / SCF ubiquitin ligase complex / inner cell mass cell proliferation / Cul2-RING ubiquitin ligase complex / Cul4A-RING E3 ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / negative regulation of type I interferon production / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul3-RING ubiquitin ligase complex / mitotic metaphase chromosome alignment / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / negative regulation of mitophagy / negative regulation of Rho protein signal transduction / stress fiber assembly / Prolactin receptor signaling / positive regulation of cytokinesis / skeletal muscle cell differentiation / cullin family protein binding / sperm flagellum / response to light stimulus / protein monoubiquitination / endoplasmic reticulum to Golgi vesicle-mediated transport / ubiquitin-like ligase-substrate adaptor activity / protein K48-linked ubiquitination / RHOBTB2 GTPase cycle / protein autoubiquitination / Nuclear events stimulated by ALK signaling in cancer / JNK cascade / gastrulation / translation initiation factor activity / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / negative regulation of insulin receptor signaling pathway / post-translational protein modification / intrinsic apoptotic signaling pathway / cyclin binding / T cell activation / positive regulation of DNA-binding transcription factor activity / Regulation of BACH1 activity / positive regulation of protein ubiquitination / kidney development / integrin-mediated signaling pathway / phosphatidylinositol 3-kinase/protein kinase B signal transduction / response to insulin / cellular response to amino acid stimulus / Degradation of DVL / Degradation of GLI1 by the proteasome / negative regulation of canonical Wnt signaling pathway / Recognition of DNA damage by PCNA-containing replication complex / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome
Similarity search - Function
Kelch repeat and BTB domain-containing protein 2 / : / COP9 signalosome, subunit CSN8 / COP9 signalosome complex subunit 7, helix I / : / : / COP9 signalosome complex subunit 7a helix I domain / COP9 signalosome complex subunit 3-like, C-terminal helix / CSN7 helical bundle subdomain / COP9 signalosome complex subunit 3, N-terminal helical repeats ...Kelch repeat and BTB domain-containing protein 2 / : / COP9 signalosome, subunit CSN8 / COP9 signalosome complex subunit 7, helix I / : / : / COP9 signalosome complex subunit 7a helix I domain / COP9 signalosome complex subunit 3-like, C-terminal helix / CSN7 helical bundle subdomain / COP9 signalosome complex subunit 3, N-terminal helical repeats / COP9 signalosome subunit 6 / : / COP9 signalosome complex subunit 1, C-terminal helix / Cop9 signalosome subunit 5 C-terminal domain / COP9 signalosome complex subunit 4, helix turn helix domain / Cop9 signalosome subunit 5 C-terminal domain / CSN4/RPN5/eIF3a helix turn helix domain / Eukaryotic translation initiation factor 3 subunit M eIF3m/COP9 signalosome complex subunit 7 COPS7 / Zinc finger, RING-H2-type / RING-H2 zinc finger domain / BTB-kelch protein / : / BTB/Kelch-associated / BTB And C-terminal Kelch / BTB And C-terminal Kelch / : / : / PSMD12/CSN4, N-terminal / Cullin protein neddylation domain / 26S proteasome regulatory subunit Rpn7/COP9 signalosome complex subunit 1 / 26S proteasome regulatory subunit Rpn7, N-terminal / 26S proteasome subunit RPN7 / 26S Proteasome non-ATPase regulatory subunit 12/COP9 signalosome complex subunit 4 / Kelch / Kelch motif / : / Kelch repeat type 1 / Cullin, conserved site / Cullin family signature. / Cullin repeat-like-containing domain superfamily / Cullin protein, neddylation domain / Cullin / Cullin protein neddylation domain / PCI/PINT associated module / Cullin / CSN8/PSMD8/EIF3K / CSN8/PSMD8/EIF3K family / Rpn11/EIF3F, C-terminal / Maintenance of mitochondrial structure and function / Cullin, N-terminal / Cullin homology domain / Cullin homology domain superfamily / Cullin family / Cullin family profile. / : / motif in proteasome subunits, Int-6, Nip-1 and TRIP-15 / PCI domain / Proteasome component (PCI) domain / PCI domain profile. / Kelch-type beta propeller / JAB1/Mov34/MPN/PAD-1 ubiquitin protease / BTB/POZ domain / BTB domain profile. / Broad-Complex, Tramtrack and Bric a brac / BTB/POZ domain / JAB/MPN domain / JAB1/MPN/MOV34 metalloenzyme domain / MPN domain / MPN domain profile. / SKP1/BTB/POZ domain superfamily / Zinc finger RING-type profile. / Zinc finger, RING-type / Tetratricopeptide-like helical domain superfamily / Zinc finger, RING/FYVE/PHD-type / Winged helix DNA-binding domain superfamily / Winged helix-like DNA-binding domain superfamily
Similarity search - Domain/homology
COP9 signalosome complex subunit 2 / E3 ubiquitin-protein ligase RBX1 / COP9 signalosome complex subunit 1 / Cullin-3 / COP9 signalosome complex subunit 6 / Kelch repeat and BTB domain-containing protein 2 / COP9 signalosome complex subunit 5 / COP9 signalosome complex subunit 8 / COP9 signalosome complex subunit 4 / COP9 signalosome complex subunit 7b / COP9 signalosome complex subunit 3
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 7.51 Å
AuthorsHu, Y. / Mao, Q. / Chen, Z. / Sun, L.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)81900729 China
CitationJournal: Nat Struct Mol Biol / Year: 2024
Title: 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
DepositionOct 8, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Oct 11, 2023Provider: repository / Type: Initial release
Revision 1.1Dec 13, 2023Group: Database references / Structure summary / Category: pdbx_database_related / struct / Item: _pdbx_database_related.details / _struct.title
Revision 1.2Mar 20, 2024Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
E: COP9 signalosome complex subunit 5
A: COP9 signalosome complex subunit 1
B: COP9 signalosome complex subunit 2
C: COP9 signalosome complex subunit 3
D: COP9 signalosome complex subunit 4
F: COP9 signalosome complex subunit 6
G: COP9 signalosome complex subunit 7b
H: COP9 signalosome complex subunit 8
I: Kelch repeat and BTB domain-containing protein 2
L: Cullin-3
M: Kelch repeat and BTB domain-containing protein 2
R: E3 ubiquitin-protein ligase RBX1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)576,23916
Polymers575,97712
Non-polymers2624
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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COP9 signalosome complex subunit ... , 8 types, 8 molecules EABCDFGH

#1: Protein COP9 signalosome complex subunit 5


Mass: 37621.742 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: COPS5, CSN5, JAB / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q92905
#2: Protein COP9 signalosome complex subunit 1 / SGN1 / Signalosome subunit 1 / G protein pathway suppressor 1 / GPS-1 / JAB1-containing signalosome ...SGN1 / Signalosome subunit 1 / G protein pathway suppressor 1 / GPS-1 / JAB1-containing signalosome subunit 1 / Protein MFH


Mass: 59122.176 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GPS1, COPS1, CSN1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q13098
#3: Protein COP9 signalosome complex subunit 2 / SGN2 / Signalosome subunit 2 / Alien homolog / JAB1-containing signalosome subunit 2 / Thyroid ...SGN2 / Signalosome subunit 2 / Alien homolog / JAB1-containing signalosome subunit 2 / Thyroid receptor-interacting protein 15 / TR-interacting protein 15 / TRIP-15


Mass: 51664.570 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: COPS2, CSN2, TRIP15 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P61201
#4: Protein COP9 signalosome complex subunit 3 / SGN3 / Signalosome subunit 3 / JAB1-containing signalosome subunit 3


Mass: 47924.008 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: COPS3, CSN3 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9UNS2
#5: Protein COP9 signalosome complex subunit 4 / SGN4 / Signalosome subunit 4 / JAB1-containing signalosome subunit 4


Mass: 46322.688 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: COPS4, CSN4 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9BT78
#6: Protein COP9 signalosome complex subunit 6 / SGN6 / Signalosome subunit 6 / JAB1-containing signalosome subunit 6 / MOV34 homolog / Vpr- ...SGN6 / Signalosome subunit 6 / JAB1-containing signalosome subunit 6 / MOV34 homolog / Vpr-interacting protein / hVIP


Mass: 36203.398 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: COPS6, CSN6, HVIP / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q7L5N1
#7: Protein COP9 signalosome complex subunit 7b / SGN7b / Signalosome subunit 7b / JAB1-containing signalosome subunit 7b


Mass: 29656.928 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: COPS7B, CSN7B / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9H9Q2
#8: Protein COP9 signalosome complex subunit 8 / SGN8 / Signalosome subunit 8 / COP9 homolog / hCOP9 / JAB1-containing signalosome subunit 8


Mass: 23245.543 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: COPS8, CSN8 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q99627

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Protein , 3 types, 4 molecules IMLR

#9: Protein Kelch repeat and BTB domain-containing protein 2 / BTB and kelch domain-containing protein 1


Mass: 71431.375 Da / Num. of mol.: 2 / Mutation: S252D
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: KBTBD2, BKLHD1, KIAA1489, CGI-73 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q8IY47
#10: Protein Cullin-3 / CUL-3


Mass: 89063.328 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CUL3, KIAA0617 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q13618
#11: Protein E3 ubiquitin-protein ligase RBX1 / E3 ubiquitin-protein transferase RBX1 / Protein ZYP / RING finger protein 75 / RING-box protein 1 / ...E3 ubiquitin-protein transferase RBX1 / Protein ZYP / RING finger protein 75 / RING-box protein 1 / Rbx1 / Regulator of cullins 1 / ROC1


Mass: 12289.977 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RBX1, RNF75, ROC1 / Production host: Spodoptera frugiperda (fall armyworm)
References: UniProt: P62877, RING-type E3 ubiquitin transferase, cullin-RING-type E3 NEDD8 transferase

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Non-polymers , 1 types, 4 molecules

#12: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1Cryo-EM Structure of the KBTBD2-CRL3~N8-CSN complexCOMPLEX#1-#110RECOMBINANT
2CSNCOMPLEX#1-#81RECOMBINANT
3KBTBD2, Cullin-3, Rbx1COMPLEX#9-#111RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
23Spodoptera frugiperda (fall armyworm)7108
32Trichoplusia ni (cabbage looper)7111
Buffer solutionpH: 7.8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 1200 nm
Image recordingElectron dose: 53 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

EM software
IDNameVersionCategory
2RELION3image acquisition
13RELION33D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 7.51 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 55391 / Symmetry type: POINT

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