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- PDB-8u7z: KCTD5/Cullin3/Gbeta1gamma2 Complex: Local Refinment of KCTD5(CTD)... -

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Basic information

Entry
Database: PDB / ID: 8u7z
TitleKCTD5/Cullin3/Gbeta1gamma2 Complex: Local Refinment of KCTD5(CTD)/Gbeta1gamma2
Components
  • BTB/POZ domain-containing protein KCTD5
  • Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
  • Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
KeywordsLIGASE / cullin family protein / proteasome-mediated ubiquitin-dependent protein catabolic process / complex / ubiquitin-dependent protein catabolic process
Function / homology
Function and homology information


Cul3-RING ubiquitin ligase complex / cullin family protein binding / protein homooligomerization / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / G-protein activation ...Cul3-RING ubiquitin ligase complex / cullin family protein binding / protein homooligomerization / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / proteasome-mediated ubiquitin-dependent protein catabolic process / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / identical protein binding / membrane / nucleus / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Potassium channel tetramerisation-type BTB domain / BTB/POZ domain / Broad-Complex, Tramtrack and Bric a brac / BTB/POZ domain / SKP1/BTB/POZ domain superfamily / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain ...Potassium channel tetramerisation-type BTB domain / BTB/POZ domain / Broad-Complex, Tramtrack and Bric a brac / BTB/POZ domain / SKP1/BTB/POZ domain superfamily / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / BTB/POZ domain-containing protein KCTD5
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.97 Å
AuthorsKuntz, D.A. / Nguyen, D.M. / Narayanan, N. / Prive, G.G.
Funding support Canada, 1items
OrganizationGrant numberCountry
Canadian Institutes of Health Research (CIHR) Canada
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: Proc.Natl.Acad.Sci.USA / Year: 2024
Title: Structure and dynamics of a pentameric KCTD5/Cullin3/G beta gamma E3 ubiquitin ligase complex
Authors: Nguyen, D.M. / Rath, D.H. / Devost, D. / Petrin, D. / Rizk, R. / Ji, A.X. / Narayanan, N. / Yong, D. / Zhai, A. / Kuntz, D.A. / Mian, M.U.Q. / Pomroy, N.C. / Keszei, A.F.E. / Benlekbir, S. / ...Authors: Nguyen, D.M. / Rath, D.H. / Devost, D. / Petrin, D. / Rizk, R. / Ji, A.X. / Narayanan, N. / Yong, D. / Zhai, A. / Kuntz, D.A. / Mian, M.U.Q. / Pomroy, N.C. / Keszei, A.F.E. / Benlekbir, S. / Mazhab-Jafari, M.T. / Rubinstein, J.L. / Hebert, T.E. / Prive, G.G.
#2: Journal: Biorxiv / Year: 2023
Title: Structure and dynamics of a pentameric KCTD5/Cullin3/G beta gamma E3 ubiquitin ligase complex
Authors: Nguyen, D.M. / Rath, D.H. / Devost, D. / Petrin, D. / Rizk, R. / Ji, A.X. / Narayanan, N. / Yong, D. / Zhai, A. / Kuntz, D.A. / Mian, M.U.Q. / Pomroy, N.C. / Keszei, A.F.E. / Benlekbir, S. / ...Authors: Nguyen, D.M. / Rath, D.H. / Devost, D. / Petrin, D. / Rizk, R. / Ji, A.X. / Narayanan, N. / Yong, D. / Zhai, A. / Kuntz, D.A. / Mian, M.U.Q. / Pomroy, N.C. / Keszei, A.F.E. / Benlekbir, S. / Mazhab-Jafari, M.T. / Rubinstein, J.L. / Hebert, T.E. / Prive, G.G.
History
DepositionSep 15, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Oct 11, 2023Provider: repository / Type: Initial release
Revision 1.1Oct 25, 2023Group: Structure summary / Category: audit_author / Item: _audit_author.identifier_ORCID / _audit_author.name
Revision 1.2Apr 24, 2024Group: Database references / Category: citation / citation_author
Revision 1.3May 1, 2024Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _citation_author.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
B1: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
B2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
B3: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
B4: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
B5: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
G1: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
G2: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
G3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
G4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
G5: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
K1: BTB/POZ domain-containing protein KCTD5
K2: BTB/POZ domain-containing protein KCTD5
K3: BTB/POZ domain-containing protein KCTD5
K4: BTB/POZ domain-containing protein KCTD5
K5: BTB/POZ domain-containing protein KCTD5


Theoretical massNumber of molelcules
Total (without water)356,93815
Polymers356,93815
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 37416.930 Da / Num. of mol.: 5
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: P62873
#2: Protein
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7845.078 Da / Num. of mol.: 5 / Mutation: C68S
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: P59768
#3: Protein
BTB/POZ domain-containing protein KCTD5


Mass: 26125.562 Da / Num. of mol.: 5
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: KCTD5 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: Q9NXV2

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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

ComponentName: pentameric KCTD5/Cullin3/GBetaGamma E3 ubiquitin ligase complex
Type: COMPLEX / Entity ID: #3, #1-#2 / Source: MULTIPLE SOURCES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human) / Cell: HEK293
Buffer solutionpH: 7.5
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 magnification: 75000 X / Nominal defocus max: 1500 nm / Nominal defocus min: 250 nm
Image recordingElectron dose: 49.35 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of real images: 7464

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Processing

EM softwareName: cryoSPARC / Category: 3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 2.97 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 202862 / Symmetry type: POINT

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