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- PDB-8j1r: cryo-EM structures of Ufd4 in complex with Ubc4-Ub -

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Basic information

Entry
Database: PDB / ID: 8j1r
Titlecryo-EM structures of Ufd4 in complex with Ubc4-Ub
Components
  • Ubiquitin fusion degradation protein 4
  • Ubiquitin-conjugating enzyme E2 4
KeywordsLIGASE / Ufd4 / Ubc4 / Ubc4-Ub / HECT-type E3 ligase
Function / homology
Function and homology information


proteasome regulatory particle binding / Peroxisomal protein import / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / protein K29-linked ubiquitination / free ubiquitin chain polymerization / mitochondria-associated ubiquitin-dependent protein catabolic process / cytoplasm protein quality control by the ubiquitin-proteasome system / E3 ubiquitin ligases ubiquitinate target proteins / ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway / HECT-type E3 ubiquitin transferase ...proteasome regulatory particle binding / Peroxisomal protein import / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / protein K29-linked ubiquitination / free ubiquitin chain polymerization / mitochondria-associated ubiquitin-dependent protein catabolic process / cytoplasm protein quality control by the ubiquitin-proteasome system / E3 ubiquitin ligases ubiquitinate target proteins / ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway / HECT-type E3 ubiquitin transferase / Transferases; Acyltransferases; Aminoacyltransferases / ribosome-associated ubiquitin-dependent protein catabolic process / E2 ubiquitin-conjugating enzyme / proteasome binding / ubiquitin conjugating enzyme activity / Antigen processing: Ubiquitination & Proteasome degradation / rescue of stalled ribosome / ubiquitin binding / protein polyubiquitination / ubiquitin-protein transferase activity / ubiquitin protein ligase activity / cellular response to heat / ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / proteasome-mediated ubiquitin-dependent protein catabolic process / nuclear speck / mitochondrion / ATP binding / nucleus / cytoplasm
Similarity search - Function
E3 ubiquitin-protein ligase HECTD1/TRIP12-like / HECT domain / HECT, E3 ligase catalytic domain / HECT-domain (ubiquitin-transferase) / HECT domain profile. / Domain Homologous to E6-AP Carboxyl Terminus with / Ubiquitin-conjugating enzyme, active site / Ubiquitin-conjugating (UBC) active site signature. / Ubiquitin-conjugating enzyme E2 / Ubiquitin-conjugating enzyme ...E3 ubiquitin-protein ligase HECTD1/TRIP12-like / HECT domain / HECT, E3 ligase catalytic domain / HECT-domain (ubiquitin-transferase) / HECT domain profile. / Domain Homologous to E6-AP Carboxyl Terminus with / Ubiquitin-conjugating enzyme, active site / Ubiquitin-conjugating (UBC) active site signature. / Ubiquitin-conjugating enzyme E2 / Ubiquitin-conjugating enzyme / Ubiquitin-conjugating (UBC) core domain profile. / Ubiquitin-conjugating enzyme E2, catalytic domain homologues / Ubiquitin-conjugating enzyme/RWD-like / Armadillo-like helical / Armadillo-type fold
Similarity search - Domain/homology
Ubiquitin-conjugating enzyme E2 4 / Ubiquitin fusion degradation protein 4
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.52 Å
AuthorsAi, H.S. / Mao, J.X. / Wu, X.W. / Cai, H.Y. / Pan, M. / Liu, L.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)22137005, 92253302, 22227810, 22277073, 92253302, China
CitationJournal: To Be Published
Title: Structural Visualization of HECT-E3 Ufd4 accepting and transferring Ubiquitin to Form K29/K48-branched Polyubiquitination on N-degron. bioRxiv,doi: ttps://doi.org/10.1101/2023.05.23.542033
Authors: Mao, J.X. / Ai, H.S. / Wu, X.W. / Cai, H.Y. / Pan, M. / Liu, L.
History
DepositionApr 13, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Apr 17, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Ubiquitin fusion degradation protein 4
C: Ubiquitin-conjugating enzyme E2 4


Theoretical massNumber of molelcules
Total (without water)184,4692
Polymers184,4692
Non-polymers00
Water00
1


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

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Components

#1: Protein Ubiquitin fusion degradation protein 4 / UB fusion protein 4 / HECT-type E3 ubiquitin transferase UFD4


Mass: 168026.031 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: UFD4, YKL010C, YKL162 / Production host: Saccharomyces cerevisiae BY4741 (yeast)
References: UniProt: P33202, Transferases; Acyltransferases; Aminoacyltransferases, HECT-type E3 ubiquitin transferase
#2: Protein Ubiquitin-conjugating enzyme E2 4 / E2 ubiquitin-conjugating enzyme 4 / Ubiquitin carrier protein 4 / Ubiquitin-protein ligase 4


Mass: 16442.586 Da / Num. of mol.: 1 / Mutation: C22S,C108S
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: UBC4, YBR082C, YBR0745 / Production host: Escherichia coli (E. coli)
References: UniProt: P15731, E2 ubiquitin-conjugating enzyme

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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
1Ufd4 in complex with Ubc4-UbCOMPLEXall0RECOMBINANT
2Ufd4COMPLEX#11RECOMBINANT
3Ubc4COMPLEX#21RECOMBINANT
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
22Saccharomyces cerevisiae BY4741 (yeast)1247190
33Escherichia coli (E. coli)562
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 defocus max: 2000 nm / Nominal defocus min: 1500 nm
Image recordingElectron dose: 43.347 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: NONE
3D reconstructionResolution: 3.52 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 124116 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0046641
ELECTRON MICROSCOPYf_angle_d0.538988
ELECTRON MICROSCOPYf_dihedral_angle_d12.8382417
ELECTRON MICROSCOPYf_chiral_restr0.0411022
ELECTRON MICROSCOPYf_plane_restr0.0041136

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