[English] 日本語
Yorodumi- PDB-9e8q: Nub1/Fat10-processing human 26S proteasome with Rpt2 at top of sp... -
+
Open data
-
Basic information
| Entry | Database: PDB / ID: 9e8q | ||||||
|---|---|---|---|---|---|---|---|
| Title | Nub1/Fat10-processing human 26S proteasome with Rpt2 at top of spiral staircase | ||||||
Components |
| ||||||
Keywords | MOTOR PROTEIN / HYDROLASE/PROTEIN BINDING / 26S Proteasome / Nub1 / Fat10 / HYDROLASE-PROTEIN BINDING complex | ||||||
| Function / homology | Function and homology informationthyrotropin-releasing hormone receptor binding / nuclear proteasome complex / host-mediated perturbation of viral transcription / positive regulation of inclusion body assembly / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases / proteasome accessory complex / integrator complex / purine ribonucleoside triphosphate binding ...thyrotropin-releasing hormone receptor binding / nuclear proteasome complex / host-mediated perturbation of viral transcription / positive regulation of inclusion body assembly / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases / proteasome accessory complex / integrator complex / purine ribonucleoside triphosphate binding / meiosis I / proteasome regulatory particle / cytosolic proteasome complex / positive regulation of proteasomal protein catabolic process / proteasome-activating activity / proteasome regulatory particle, lid subcomplex / proteasome regulatory particle, base subcomplex / metal-dependent deubiquitinase activity / protein K63-linked deubiquitination / negative regulation of programmed cell death / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / proteasome core complex / Homologous DNA Pairing and Strand Exchange / Defective homologous recombination repair (HRR) due to BRCA1 loss of function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA1 binding function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA2/RAD51/RAD51C binding function / Resolution of D-loop Structures through Synthesis-Dependent Strand Annealing (SDSA) / Somitogenesis / Resolution of D-loop Structures through Holliday Junction Intermediates / K63-linked deubiquitinase activity / Impaired BRCA2 binding to RAD51 / proteasome binding / transcription factor binding / regulation of protein catabolic process / myofibril / proteasome storage granule / Presynaptic phase of homologous DNA pairing and strand exchange / general transcription initiation factor binding / blastocyst development / positive regulation of RNA polymerase II transcription preinitiation complex assembly / polyubiquitin modification-dependent protein binding / immune system process / protein deubiquitination / NF-kappaB binding / proteasome endopeptidase complex / endopeptidase activator activity / proteasome core complex, beta-subunit complex / mRNA export from nucleus / proteasome assembly / threonine-type endopeptidase activity / proteasome core complex, alpha-subunit complex / SARS-CoV-1 targets host intracellular signalling and regulatory pathways / enzyme regulator activity / regulation of proteasomal protein catabolic process / ERAD pathway / inclusion body / TBP-class protein binding / proteolysis involved in protein catabolic process / proteasome complex / sarcomere / Regulation of activated PAK-2p34 by proteasome mediated degradation / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / Asymmetric localization of PCP proteins / Ubiquitin-dependent degradation of Cyclin D / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / TNFR2 non-canonical NF-kB pathway / AUF1 (hnRNP D0) binds and destabilizes mRNA / stem cell differentiation / Vpu mediated degradation of CD4 / Assembly of the pre-replicative complex / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Degradation of DVL / Dectin-1 mediated noncanonical NF-kB signaling / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / negative regulation of inflammatory response to antigenic stimulus / Degradation of AXIN / P-body / Hh mutants are degraded by ERAD / lipopolysaccharide binding / Activation of NF-kappaB in B cells / Degradation of GLI1 by the proteasome / G2/M Checkpoints / Hedgehog ligand biogenesis / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Defective CFTR causes cystic fibrosis / Autodegradation of the E3 ubiquitin ligase COP1 / Negative regulation of NOTCH4 signaling / Regulation of RUNX3 expression and activity / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / MAPK6/MAPK4 signaling Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.16 Å | ||||||
Authors | Arkinson, C. / Gee, C.L. / Martin, A. | ||||||
| Funding support | United States, 1items
| ||||||
Citation | Journal: bioRxiv / Year: 2024Title: Structural landscape of AAA+ ATPase motor states in the substrate-degrading human 26S proteasome reveals conformation-specific binding of TXNL1. Authors: Connor Arkinson / Christine L Gee / Zeyuan Zhang / Ken C Dong / Andreas Martin / ![]() Abstract: The 26S proteasome targets many cellular proteins for degradation during general homeostasis, protein quality control, and the regulation of vital processes. A broad range of proteasome-interacting ...The 26S proteasome targets many cellular proteins for degradation during general homeostasis, protein quality control, and the regulation of vital processes. A broad range of proteasome-interacting cofactors thereby modulates these functions and aids in substrate degradation. Here, we solved several high-resolution structures of the redox active cofactor TXNL1 bound to the human 26S proteasome at saturating and sub-stoichiometric concentrations by time resolved cryo-EM. We identified distinct binding modes of TXNL1 that depend on the proteasome conformational and ATPase motor states. Together with biophysical and biochemical experiments, our structural studies reveal that the resting-state proteasome prior to substrate engagement with the ATPase motor binds TXNL1 with low affinity and in variable positions on top of the Rpn11 deubiquitinase. In contrast, the actively degrading proteasome shows additional interactions leading to high-affinity TXNL1 binding, whereby TXNL1's C-terminal tail covers the catalytic groove of the Rpn11 deubiquitinase and coordinates the active-site Zn. Furthermore, these cryo-EM structures of the degrading proteasome capture the ATPase hexamer in all registers of spiral-staircase arrangements and thus visualize the complete ATP-hydrolysis cycle of the AAA+ motor, indicating temporally asymmetric hydrolysis and conformational changes in bursts during mechanical substrate unfolding and translocation. Remarkably, we catch the proteasome in the act of unfolding the beta-barrel mEos3.2 substrate while the ATPase hexamer is in a particular spiral staircase register. Our findings challenge current models for protein translocation through hexameric AAA+ motors and reveal how the proteasome uses its distinct but broad range of conformational states to coordinate cofactor binding and substrate processing. | ||||||
| History |
|
-
Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
|---|
-
Downloads & links
-
Download
| PDBx/mmCIF format | 9e8q.cif.gz | 2 MB | Display | PDBx/mmCIF format |
|---|---|---|---|---|
| PDB format | pdb9e8q.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9e8q.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9e8q_validation.pdf.gz | 2.3 MB | Display | wwPDB validaton report |
|---|---|---|---|---|
| Full document | 9e8q_full_validation.pdf.gz | 2.4 MB | Display | |
| Data in XML | 9e8q_validation.xml.gz | 237.4 KB | Display | |
| Data in CIF | 9e8q_validation.cif.gz | 379.2 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/e8/9e8q ftp://data.pdbj.org/pub/pdb/validation_reports/e8/9e8q | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 47727MC ![]() 9e8gC ![]() 9e8hC ![]() 9e8iC ![]() 9e8jC ![]() 9e8kC ![]() 9e8lC ![]() 9e8nC ![]() 9e8oC M: map data used to model this data C: citing same article ( |
|---|---|
| Similar structure data | Similarity search - Function & homology F&H Search |
-
Links
-
Assembly
| Deposited unit | ![]()
|
|---|---|
| 1 |
|
-
Components
-26S proteasome regulatory subunit ... , 4 types, 4 molecules ABDF
| #1: Protein | Mass: 48700.805 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P35998 |
|---|---|
| #2: Protein | Mass: 49260.504 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62191 |
| #4: Protein | Mass: 47426.141 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P43686 |
| #6: Protein | Mass: 49266.457 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P17980 |
-26S protease regulatory subunit ... , 2 types, 2 molecules CE
| #3: Protein | Mass: 45694.047 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62195 |
|---|---|
| #5: Protein | Mass: 44241.008 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P62333 |
-Proteasome subunit alpha type- ... , 7 types, 7 molecules GHIJKLM
| #7: Protein | Mass: 27432.459 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293References: UniProt: P60900, proteasome endopeptidase complex |
|---|---|
| #8: Protein | Mass: 25927.535 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)References: UniProt: P25787, proteasome endopeptidase complex |
| #9: Protein | Mass: 29525.842 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)References: UniProt: P25789, proteasome endopeptidase complex |
| #10: Protein | Mass: 27929.891 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)References: UniProt: O14818, proteasome endopeptidase complex |
| #11: Protein | Mass: 26494.080 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P28066 |
| #12: Protein | Mass: 29595.627 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293References: UniProt: P25786, proteasome endopeptidase complex |
| #13: Protein | Mass: 28469.252 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293References: UniProt: P25788, proteasome endopeptidase complex |
-Proteasome subunit beta type- ... , 7 types, 7 molecules NOPQRST
| #14: Protein | Mass: 25377.652 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human)References: UniProt: P28072, proteasome endopeptidase complex |
|---|---|
| #15: Protein | Mass: 30000.418 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293References: UniProt: Q99436, proteasome endopeptidase complex |
| #16: Protein | Mass: 22972.896 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293References: UniProt: P49720, proteasome endopeptidase complex |
| #17: Protein | Mass: 22864.277 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293References: UniProt: P49721, proteasome endopeptidase complex |
| #18: Protein | Mass: 28510.248 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293References: UniProt: P28074, proteasome endopeptidase complex |
| #19: Protein | Mass: 26522.396 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293References: UniProt: P20618, proteasome endopeptidase complex |
| #20: Protein | Mass: 29231.178 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293References: UniProt: P28070, proteasome endopeptidase complex |
-26S proteasome non-ATPase regulatory subunit ... , 11 types, 11 molecules UVWXYZabcdf
| #21: Protein | Mass: 105957.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q99460 |
|---|---|
| #22: Protein | Mass: 61066.500 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: O43242 |
| #23: Protein | Mass: 52979.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: O00232 |
| #24: Protein | Mass: 47526.688 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: O00231 |
| #25: Protein | Mass: 45592.285 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: Q15008 |
| #26: Protein | Mass: 37086.441 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P51665 |
| #27: Protein | Mass: 42995.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q9UNM6 |
| #28: Protein | Mass: 40781.590 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P55036 |
| #29: Protein | Mass: 46940.898 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Cell line: HEK293 / Gene: PSMD14 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / Strain (production host): PSMD14-httb / References: UniProt: O00487 |
| #30: Protein | Mass: 39667.871 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P48556 |
| #32: Protein | Mass: 100313.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: Q13200 |
-Protein / Protein/peptide , 2 types, 2 molecules ev
| #31: Protein | Mass: 8284.611 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HEK293 / References: UniProt: P60896 |
|---|---|
| #33: Protein/peptide | Mass: 2230.741 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) |
-Non-polymers , 4 types, 10 molecules 






| #34: Chemical | ChemComp-ADP / #35: Chemical | #36: Chemical | #37: Chemical | ChemComp-ZN / | |
|---|
-Details
| Has ligand of interest | Y |
|---|---|
| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
|---|---|
| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
| Component | Name: Human 26S proteasome complexed with Nub1, Fat10 and TXNL1 Type: COMPLEX / Entity ID: #1-#33 / Source: MULTIPLE SOURCES |
|---|---|
| Molecular weight | Value: 2.6 MDa / Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.4 Details: 30 mM HEPES pH7.4, 25 mM NaCl, 25 mM KCl, 3% (v/v) glycerol, 5 mM MgCl2 2 mM ATP and 0.5 mM TCEP. |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Details: 25 mA / Grid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: UltrAuFoil R2/2 |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 285 K |
-
Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
|---|---|
| Microscopy | Model: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1700 nm / Nominal defocus min: 500 nm / Alignment procedure: BASIC |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-
Processing
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
|---|---|
| 3D reconstruction | Resolution: 3.16 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 31177 / Symmetry type: POINT |
Movie
Controller
About Yorodumi



Homo sapiens (human)
United States, 1items
Citation
















PDBj













FIELD EMISSION GUN