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- PDB-7w3m: Structure of USP14-bound human 26S proteasome in substrate-inhibi... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7w3m | ||||||
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Title | Structure of USP14-bound human 26S proteasome in substrate-inhibited state SD5_USP14 | ||||||
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![]() | HYDROLASE / Proteasome / AAA-ATPase / Deubiquitinase / USP14 | ||||||
Function / homology | ![]() negative regulation of ERAD pathway / thyrotropin-releasing hormone receptor binding / modulation by host of viral transcription / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / regulation of chemotaxis / deubiquitinase activity / cytosolic proteasome complex / protein K48-linked deubiquitination / Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases ...negative regulation of ERAD pathway / thyrotropin-releasing hormone receptor binding / modulation by host of viral transcription / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / regulation of chemotaxis / deubiquitinase activity / cytosolic proteasome complex / protein K48-linked deubiquitination / Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases / proteasome accessory complex / integrator complex / purine ribonucleoside triphosphate binding / meiosis I / proteasome regulatory particle / positive regulation of proteasomal protein catabolic process / proteasome-activating activity / proteasome regulatory particle, lid subcomplex / proteasome regulatory particle, base subcomplex / metal-dependent deubiquitinase activity / hypothalamus gonadotrophin-releasing hormone neuron development / negative regulation of programmed cell death / protein K63-linked deubiquitination / Regulation of ornithine decarboxylase (ODC) / female meiosis I / Proteasome assembly / positive regulation of protein monoubiquitination / 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 / Cross-presentation of soluble exogenous antigens (endosomes) / Resolution of D-loop Structures through Synthesis-Dependent Strand Annealing (SDSA) / proteasome core complex / Resolution of D-loop Structures through Holliday Junction Intermediates / fat pad development / mitochondrion transport along microtubule / Somitogenesis / endopeptidase inhibitor activity / K63-linked deubiquitinase activity / Impaired BRCA2 binding to RAD51 / female gonad development / proteasome binding / seminiferous tubule development / transcription factor binding / regulation of protein catabolic process / myofibril / male meiosis I / proteasome storage granule / Presynaptic phase of homologous DNA pairing and strand exchange / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / general transcription initiation factor binding / blastocyst development / polyubiquitin modification-dependent protein binding / negative regulation of ubiquitin-dependent protein catabolic process / immune system process / protein deubiquitination / endopeptidase activator activity / NF-kappaB binding / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / proteasome assembly / threonine-type endopeptidase activity / proteasome core complex, alpha-subunit complex / presynaptic cytosol / mRNA export from nucleus / energy homeostasis / regulation of neuron apoptotic process / enzyme regulator activity / regulation of proteasomal protein catabolic process / 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) / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Negative regulation of FLT3 / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Constitutive Signaling by NOTCH1 HD Domain Mutants / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1,TRAF6-dependent induction of TAK1 complex / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / Regulation of FZD by ubiquitination / Downregulation of ERBB4 signaling / p75NTR recruits signalling complexes / APC-Cdc20 mediated degradation of Nek2A / InlA-mediated entry of Listeria monocytogenes into host cells / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / TRAF6-mediated induction of TAK1 complex within TLR4 complex Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.5 Å | ||||||
![]() | Zhang, S. / Zou, S. / Yin, D. / Wu, Z. / Mao, Y. | ||||||
Funding support | ![]()
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![]() | ![]() Title: USP14-regulated allostery of the human proteasome by time-resolved cryo-EM. Authors: Shuwen Zhang / Shitao Zou / Deyao Yin / Lihong Zhao / Daniel Finley / Zhaolong Wu / Youdong Mao / ![]() ![]() Abstract: Proteasomal degradation of ubiquitylated proteins is tightly regulated at multiple levels. A primary regulatory checkpoint is the removal of ubiquitin chains from substrates by the deubiquitylating ...Proteasomal degradation of ubiquitylated proteins is tightly regulated at multiple levels. A primary regulatory checkpoint is the removal of ubiquitin chains from substrates by the deubiquitylating enzyme ubiquitin-specific protease 14 (USP14), which reversibly binds the proteasome and confers the ability to edit and reject substrates. How USP14 is activated and regulates proteasome function remain unknown. Here we present high-resolution cryo-electron microscopy structures of human USP14 in complex with the 26S proteasome in 13 distinct conformational states captured during degradation of polyubiquitylated proteins. Time-resolved cryo-electron microscopy analysis of the conformational continuum revealed two parallel pathways of proteasome state transitions induced by USP14, and captured transient conversion of substrate-engaged intermediates into substrate-inhibited intermediates. On the substrate-engaged pathway, ubiquitin-dependent activation of USP14 allosterically reprograms the conformational landscape of the AAA-ATPase motor and stimulates opening of the core particle gate, enabling observation of a near-complete cycle of asymmetric ATP hydrolysis around the ATPase ring during processive substrate unfolding. Dynamic USP14-ATPase interactions decouple the ATPase activity from RPN11-catalysed deubiquitylation and kinetically introduce three regulatory checkpoints on the proteasome, at the steps of ubiquitin recognition, substrate translocation initiation and ubiquitin chain recycling. These findings provide insights into the complete functional cycle of the USP14-regulated proteasome and establish mechanistic foundations for the discovery of USP14-targeted therapies. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 2.4 MB | Display | ![]() |
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PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 32284MC ![]() 7w37C ![]() 7w38C ![]() 7w39C ![]() 7w3aC ![]() 7w3bC ![]() 7w3cC ![]() 7w3fC ![]() 7w3gC ![]() 7w3hC ![]() 7w3iC ![]() 7w3jC ![]() 7w3kC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-26S protease regulatory subunit ... , 4 types, 4 molecules ABDF
#1: Protein | Mass: 48700.805 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#2: Protein | Mass: 49260.504 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#4: Protein | Mass: 47426.141 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#6: Protein | Mass: 49266.457 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Protein , 4 types, 5 molecules CLlxy
#3: Protein | Mass: 44852.121 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() | ||||
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#12: Protein | Mass: 30281.473 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #32: Protein | | Mass: 56133.926 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #33: Protein | | Mass: 8576.831 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-26S proteasome ... , 13 types, 13 molecules EUVWXYZabcdfe
#5: Protein | Mass: 45867.027 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#21: Protein | Mass: 105958.234 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#22: Protein | Mass: 61066.500 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#23: Protein | Mass: 52979.359 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#24: Protein | Mass: 47526.688 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#25: Protein | Mass: 45592.285 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#26: Protein | Mass: 37086.441 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#27: Protein | Mass: 42995.359 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#28: Protein | Mass: 40781.590 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#29: Protein | Mass: 34620.023 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: O00487, Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases |
#30: Protein | Mass: 39667.871 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#31: Protein | Mass: 100313.625 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#34: Protein | Mass: 8284.611 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Proteasome subunit alpha type- ... , 6 types, 12 molecules GgHhIiJjKkMm
#7: Protein | Mass: 27432.459 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P60900, proteasome endopeptidase complex #8: Protein | Mass: 25927.535 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P25787, proteasome endopeptidase complex #9: Protein | Mass: 29525.842 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P25789, proteasome endopeptidase complex #10: Protein | Mass: 27929.891 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: O14818, proteasome endopeptidase complex #11: Protein | Mass: 26435.977 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P28066, proteasome endopeptidase complex #13: Protein | Mass: 28469.252 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Proteasome subunit beta type- ... , 7 types, 14 molecules NnOoPpQqRrSsTt
#14: Protein | Mass: 25377.652 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P28072, proteasome endopeptidase complex #15: Protein | Mass: 30000.418 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: Q99436, proteasome endopeptidase complex #16: Protein | Mass: 22972.896 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P49720, proteasome endopeptidase complex #17: Protein | Mass: 22864.277 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P49721, proteasome endopeptidase complex #18: Protein | Mass: 28510.248 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P28074, proteasome endopeptidase complex #19: Protein | Mass: 26522.396 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P20618, proteasome endopeptidase complex #20: Protein | Mass: 29231.178 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P28070, proteasome endopeptidase complex |
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-Non-polymers , 3 types, 5 molecules 




#35: Chemical | #36: Chemical | ChemComp-ADP / | #37: Chemical | ChemComp-ZN / | |
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-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight | Value: 1.6 MDa / Experimental value: YES | ||||||||||||||||||||||||
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Buffer solution | pH: 7 | ||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 5000 nm / Nominal defocus min: 400 nm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 66215 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 170.5 Å2 | ||||||||||||||||||||||||
Refine LS restraints |
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