+
Open data
-
Basic information
Entry | Database: PDB / ID: 5a5b | ||||||
---|---|---|---|---|---|---|---|
Title | Structure of the 26S proteasome-Ubp6 complex | ||||||
![]() |
| ||||||
![]() | HYDROLASE / CONFORMATIONAL SWITCHING / PROTEIN DEGRADATION / PROTEOSTASIS / QUALITY CONTROL / UBP6 / USP14 | ||||||
Function / homology | ![]() SAGA complex localization to transcription regulatory region / mitochondria-associated ubiquitin-dependent protein catabolic process / Metalloprotease DUBs / peroxisome fission / negative regulation of proteasomal protein catabolic process / proteasome storage granule assembly / regulation of proteasomal ubiquitin-dependent protein catabolic process / transcription export complex 2 / proteasome regulatory particle assembly / protein deneddylation ...SAGA complex localization to transcription regulatory region / mitochondria-associated ubiquitin-dependent protein catabolic process / Metalloprotease DUBs / peroxisome fission / negative regulation of proteasomal protein catabolic process / proteasome storage granule assembly / regulation of proteasomal ubiquitin-dependent protein catabolic process / transcription export complex 2 / proteasome regulatory particle assembly / protein deneddylation / nonfunctional rRNA decay / maintenance of DNA trinucleotide repeats / filamentous growth / COP9 signalosome / proteasome regulatory particle / cytosolic proteasome complex / proteasome regulatory particle, lid subcomplex / protein-containing complex localization / proteasome-activating activity / mitochondrial fission / metal-dependent deubiquitinase activity / proteasome regulatory particle, base subcomplex / K48-linked polyubiquitin modification-dependent protein binding / proteasome core complex assembly / nuclear outer membrane-endoplasmic reticulum membrane network / Cross-presentation of soluble exogenous antigens (endosomes) / TNFR2 non-canonical NF-kB pathway / proteasomal ubiquitin-independent protein catabolic process / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Regulation of PTEN stability and activity / KEAP1-NFE2L2 pathway / CDK-mediated phosphorylation and removal of Cdc6 / Neddylation / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / peptide catabolic process / proteasome binding / regulation of protein catabolic process / Orc1 removal from chromatin / protein deubiquitination / MAPK6/MAPK4 signaling / Peptide chain elongation / proteasome storage granule / Selenocysteine synthesis / Formation of a pool of free 40S subunits / Antigen processing: Ubiquitination & Proteasome degradation / Eukaryotic Translation Termination / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Viral mRNA Translation / endopeptidase activator activity / L13a-mediated translational silencing of Ceruloplasmin expression / GTP hydrolysis and joining of the 60S ribosomal subunit / proteasome assembly / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / polyubiquitin modification-dependent protein binding / Major pathway of rRNA processing in the nucleolus and cytosol / proteasome core complex, alpha-subunit complex / threonine-type endopeptidase activity / Ub-specific processing proteases / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / positive regulation of RNA polymerase II transcription preinitiation complex assembly / mRNA export from nucleus / cytosolic ribosome / regulation of proteasomal protein catabolic process / enzyme regulator activity / ERAD pathway / protein folding chaperone / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Negative regulation of FLT3 / Neutrophil degranulation / Constitutive Signaling by NOTCH1 HD Domain Mutants / Regulation of FZD by ubiquitination / TICAM1,TRAF6-dependent induction of TAK1 complex / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / p75NTR recruits signalling complexes / Downregulation of ERBB4 signaling / APC-Cdc20 mediated degradation of Nek2A / PINK1-PRKN Mediated Mitophagy / TRAF6-mediated induction of TAK1 complex within TLR4 complex / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / Pexophagy / Regulation of innate immune responses to cytosolic DNA Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 9.5 Å | ||||||
![]() | Aufderheide, A. / Beck, F. / Stengel, F. / Hartwig, M. / Schweitzer, A. / Pfeifer, G. / Goldberg, A.L. / Sakata, E. / Baumeister, W. / Foerster, F. | ||||||
![]() | ![]() Title: Structural characterization of the interaction of Ubp6 with the 26S proteasome. Authors: Antje Aufderheide / Florian Beck / Florian Stengel / Michaela Hartwig / Andreas Schweitzer / Günter Pfeifer / Alfred L Goldberg / Eri Sakata / Wolfgang Baumeister / Friedrich Förster / ![]() ![]() Abstract: In eukaryotic cells, the 26S proteasome is responsible for the regulated degradation of intracellular proteins. Several cofactors interact transiently with this large macromolecular machine and ...In eukaryotic cells, the 26S proteasome is responsible for the regulated degradation of intracellular proteins. Several cofactors interact transiently with this large macromolecular machine and modulate its function. The deubiquitylating enzyme ubiquitin C-terminal hydrolase 6 [Ubp6; ubiquitin-specific protease (USP) 14 in mammals] is the most abundant proteasome-interacting protein and has multiple roles in regulating proteasome function. Here, we investigate the structural basis of the interaction between Ubp6 and the 26S proteasome in the presence and absence of the inhibitor ubiquitin aldehyde. To this end we have used single-particle electron cryomicroscopy in combination with cross-linking and mass spectrometry. Ubp6 binds to the regulatory particle non-ATPase (Rpn) 1 via its N-terminal ubiquitin-like domain, whereas its catalytic USP domain is positioned variably. Addition of ubiquitin aldehyde stabilizes the binding of the USP domain in a position where it bridges the proteasome subunits Rpn1 and the regulatory particle triple-A ATPase (Rpt) 1. The USP domain binds to Rpt1 in the immediate vicinity of the Ubp6 active site, which may effect its activation. The catalytic triad is positioned in proximity to the mouth of the ATPase module and to the deubiquitylating enzyme Rpn11, strongly implying their functional linkage. On the proteasome side, binding of Ubp6 favors conformational switching of the 26S proteasome into an intermediate-energy conformational state, in particular upon the addition of ubiquitin aldehyde. This modulation of the conformational space of the 26S proteasome by Ubp6 explains the effects of Ubp6 on the kinetics of proteasomal degradation. | ||||||
History |
| ||||||
Remark 650 | HELIX DETERMINATION METHOD: AUTHOR PROVIDED. | ||||||
Remark 700 | SHEET DETERMINATION METHOD: AUTHOR PROVIDED. |
-
Structure visualization
Movie |
![]() |
---|---|
Structure viewer | Molecule: ![]() ![]() |
-
Downloads & links
-
Download
PDBx/mmCIF format | ![]() | 1.8 MB | Display | ![]() |
---|---|---|---|---|
PDB format | ![]() | 1.4 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 1.8 MB | Display | |
Data in XML | ![]() | 364.6 KB | Display | |
Data in CIF | ![]() | 529.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 3034MC M: map data used to model this data C: citing same article ( |
---|---|
Similar structure data |
-
Links
-
Assembly
Deposited unit | ![]()
|
---|---|
1 |
|
-
Components
-PROTEASOME COMPONENT ... , 14 types, 14 molecules 1234567ABCDEFG
#1: Protein | Mass: 23573.604 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P38624, proteasome endopeptidase complex |
---|---|
#2: Protein | Mass: 28299.889 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P25043, proteasome endopeptidase complex |
#3: Protein | Mass: 22627.842 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P25451, proteasome endopeptidase complex |
#4: Protein | Mass: 22545.676 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P22141, proteasome endopeptidase complex |
#5: Protein | Mass: 31698.555 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P30656, proteasome endopeptidase complex |
#6: Protein | Mass: 26905.076 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P23724, proteasome endopeptidase complex |
#7: Protein | Mass: 29471.289 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P30657, proteasome endopeptidase complex |
#10: Protein | Mass: 28033.830 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P21243, proteasome endopeptidase complex |
#11: Protein | Mass: 27191.828 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P23639, proteasome endopeptidase complex |
#12: Protein | Mass: 28748.230 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P23638, proteasome endopeptidase complex |
#13: Protein | Mass: 28478.111 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P40303, proteasome endopeptidase complex |
#14: Protein | Mass: 28649.086 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P32379, proteasome endopeptidase complex |
#15: Protein | Mass: 25634.000 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P40302, proteasome endopeptidase complex |
#16: Protein | Mass: 31575.068 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() References: UniProt: P21242, proteasome endopeptidase complex |
-Protein , 4 types, 4 molecules 89LY
#8: Protein | Mass: 48825.488 Da / Num. of mol.: 1 / Fragment: RESIDUES 97-499 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
---|---|
#9: Protein | Mass: 8560.831 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#21: Protein | Mass: 49480.137 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#34: Protein | Mass: 10397.102 Da / Num. of mol.: 1 / Fragment: SEM1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-26S PROTEASE REGULATORY SUBUNIT ... , 5 types, 5 molecules HIJKM
#17: Protein | Mass: 52054.891 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
---|---|
#18: Protein | Mass: 48898.160 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#19: Protein | Mass: 45342.742 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#20: Protein | Mass: 47953.676 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#22: Protein | Mass: 48315.727 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-26S PROTEASOME REGULATORY SUBUNIT ... , 12 types, 12 molecules NOPQRSTUVWXZ
#23: Protein | Mass: 104351.883 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
---|---|
#24: Protein | Mass: 45839.348 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#25: Protein | Mass: 51840.352 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#26: Protein | Mass: 49839.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#27: Protein | Mass: 49016.367 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#28: Protein | Mass: 60464.605 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#29: Protein | Mass: 31952.119 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#30: Protein | Mass: 38365.508 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#31: Protein | Mass: 34442.281 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#32: Protein | Mass: 29776.098 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#33: Protein | Mass: 17919.002 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#35: Protein | Mass: 109601.906 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
Component | Name: 26S PROTEASOME FROM SACCHAROMYCES CEREVISIAE IN THE PRESENCE OF SACCHAROMYCES CEREVISIAE UBP6 AND UBIQUITIN ALDEHYDE Type: COMPLEX / Details: MICROGRAPHS SELECTED BY POWER SPECTRA |
---|---|
Specimen | Conc.: 0.35 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: HOLEY CARBON |
Vitrification | Instrument: HOMEMADE PLUNGER / Cryogen name: ETHANE Details: VITRIFICATION 1 -- CRYOGEN- ETHANE, INSTRUMENT- HOMEMADE PLUNGER, |
-
Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TITAN KRIOS / Date: Dec 12, 2014 |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3500 nm / Nominal defocus min: 1000 nm / Cs: 2 mm |
Specimen holder | Tilt angle max: 0 ° |
Image recording | Electron dose: 45 e/Å2 / Film or detector model: FEI FALCON II (4k x 4k) |
-
Processing
EM software | Name: Xmipp / Category: 3D reconstruction | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF correction | Details: MICROGRAPH | ||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
3D reconstruction | Method: PROJECTION MATCHING WITH A GOLD- -STANDARD PROCEDURE Resolution: 9.5 Å / Resolution method: FSC / Num. of particles: 53000 / Nominal pixel size: 1.99 Å / Actual pixel size: 1.99 Å Details: SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3034. (DEPOSITION ID: 13439). Refinement type: HALF-MAPS REFINED INDEPENDENTLY / Symmetry type: POINT | ||||||||||||
Atomic model building | Protocol: OTHER / Space: REAL / Target criteria: Cross-correlation coefficient / Details: METHOD--LOCAL CORRELATION | ||||||||||||
Atomic model building |
| ||||||||||||
Refinement | Highest resolution: 9.5 Å | ||||||||||||
Refinement step | Cycle: LAST / Highest resolution: 9.5 Å
|