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- EMDB-41994: KCTD5/Cullin3/Gbeta1gamma2 Complex: Local Refinement of KCTD5(CTD... -
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Open data
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Basic information
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Title | KCTD5/Cullin3/Gbeta1gamma2 Complex: Local Refinement of KCTD5(CTD)/Gbeta1gamma2 | |||||||||
![]() | KCTD5:Cullin3:GBetaGamma Complex High Resolution Top: Full Map | |||||||||
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![]() | cullin family protein / proteasome-mediated ubiquitin-dependent protein catabolic process / complex / ubiquitin-dependent protein catabolic process / CYTOSOLIC PROTEIN | |||||||||
Function / homology | ![]() Cul3-RING ubiquitin ligase complex / cullin family protein binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / protein homooligomerization / 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 / Olfactory Signaling Pathway / Activation of the phototransduction cascade / protein homooligomerization / 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 / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / 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 | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.97 Å | |||||||||
![]() | Nguyen DM / Narayanan N / Kuntz DA / Prive GG | |||||||||
Funding support | ![]()
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![]() | ![]() 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: ![]() 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 | ![]() | 64.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21 KB 21 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 11.5 KB | Display | ![]() |
Images | ![]() | 144 KB | ||
Masks | ![]() | 129.7 MB | ![]() | |
Filedesc metadata | ![]() | 5.9 KB | ||
Others | ![]() ![]() ![]() | 120.8 MB 120.4 MB 120.4 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8u7zMC ![]() 8u80C ![]() 8u81C ![]() 8u82C ![]() 8u83C ![]() 8u84C M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | KCTD5:Cullin3:GBetaGamma Complex High Resolution Top: Full Map | ||||||||||||||||||||
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
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Density Histograms |
-Additional map: KCTD5:Cullin3:GBetaGamma Complex High Resolution Top: Sharpened Map used...
File | emd_41994_additional_1.map | ||||||||||||
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Annotation | KCTD5:Cullin3:GBetaGamma Complex High Resolution Top: Sharpened Map used for fitting | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: KCTD5:Cullin3:GBetaGamma Complex High Resolution Top: Half Map 1
File | emd_41994_half_map_1.map | ||||||||||||
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Annotation | KCTD5:Cullin3:GBetaGamma Complex High Resolution Top: Half Map 1 | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: KCTD5:Cullin3:GBetaGamma Complex High Resolution Top: Half Map 2
File | emd_41994_half_map_2.map | ||||||||||||
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Annotation | KCTD5:Cullin3:GBetaGamma Complex High Resolution Top: Half Map 2 | ||||||||||||
Projections & Slices |
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Density Histograms |
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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 / Macromolecule list: all |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: KCTD5_HUMAN
Macromolecule | Name: KCTD5_HUMAN / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MSNLSKGTGS RKDTKMRIRA FPMTMDEKYV NSIWDLLKNA IQEIQRKNNS GLSFEELYRN AYTMVLHKHG EKLYTGLREV VTEHLINKVR EDVLNSLNNN FLQTLNQAWN DHQTAMVMIR DILMYMDRVY VQQNNVENVY NLGLIIFRDQ VVRYGCIRDH LRQTLLDMIA ...String: MSNLSKGTGS RKDTKMRIRA FPMTMDEKYV NSIWDLLKNA IQEIQRKNNS GLSFEELYRN AYTMVLHKHG EKLYTGLREV VTEHLINKVR EDVLNSLNNN FLQTLNQAWN DHQTAMVMIR DILMYMDRVY VQQNNVENVY NLGLIIFRDQ VVRYGCIRDH LRQTLLDMIA RERKGEVVDR GAIRNACQML MILGLEGRSV YEEDFEAPFL EMSAEFFQME SQKFLAENSA SVYIKKVEAR INEEIERVMH CLDKSTEEPI VKVVERELIS KHMKTIVEME NSGLVHMLKN GKTEDLGCMY KLFSRVPNGL KTMCECMSSY LREQGKALVS EEGEGKNPVD YIQGLLDLKS RFDRFLLESF NNDRLFKQTI AGDFEYFLNL N |
-Macromolecule #2: GBB1_HUMAN
Macromolecule | Name: GBB1_HUMAN / type: protein_or_peptide / ID: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Recombinant expression | Organism: ![]() |
Sequence | String: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRL LVSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN I CSIYNLKT REGNVRVSRE LAGHTGYLSC CRFLDDNQIV TSSGDTTCAL ...String: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRL LVSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN I CSIYNLKT REGNVRVSRE LAGHTGYLSC CRFLDDNQIV TSSGDTTCAL WDIETGQQTT TF TGHTGDV MSLSLAPDTR LFVSGACDAS AKLWDVREGM CRQTFTGHES DINAICFFPN GNA FATGSD DATCRLFDLR ADQELMTYSH DNIICGITSV SFSKSGRLLL AGYDDFNCNV WDAL KADRA GVLAGHDNRV SCLGVTDDGM AVATGSWDSF LKIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #3: GBG2_HUMAN
Macromolecule | Name: GBG2_HUMAN / type: protein_or_peptide / ID: 3 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFSA IL UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE / Instrument: FEI VITROBOT MARK IV |
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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: ![]() |
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 |
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Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
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Output model | ![]() PDB-8u7z: |