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Yorodumi- PDB-9ug9: The cryo-EM structure of 26S proteasome-Midnolin complex MB state -
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Basic information
| Entry | Database: PDB / ID: 9ug9 | |||||||||||||||||||||
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| Title | The cryo-EM structure of 26S proteasome-Midnolin complex MB state | |||||||||||||||||||||
|  Components | 
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|  Keywords | HYDROLASE / 26S proteasome / complex / Midnolin | |||||||||||||||||||||
| Function / homology |  Function and homology information negative regulation of glucokinase activity / 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 ...negative regulation of glucokinase activity / 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 / proteasomal ubiquitin-independent protein catabolic process / 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 / proteasome assembly / mRNA export from nucleus / 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 / lipopolysaccharide binding / P-body / Hh mutants are degraded by ERAD / 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 / negative regulation of insulin secretion / 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 Similarity search - Function | |||||||||||||||||||||
| Biological species |  Homo sapiens (human) | |||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.5 Å | |||||||||||||||||||||
|  Authors | Wang, H.Y. / Xu, W.Q. | |||||||||||||||||||||
| Funding support |  China, 4items 
 | |||||||||||||||||||||
|  Citation |  Journal: To Be Published Title: The cryo-EM structure of 26S proteasome-Midnolin complex MB state Authors: Wang, H.Y. / Xu, W.Q. | |||||||||||||||||||||
| History | 
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- Structure visualization
Structure visualization
| Structure viewer | Molecule:  Molmil  Jmol/JSmol | 
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- Downloads & links
Downloads & links
- Download
Download
| PDBx/mmCIF format |  9ug9.cif.gz | 2.4 MB | Display |  PDBx/mmCIF format | 
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| PDB format |  pdb9ug9.ent.gz | Display |  PDB format | |
| PDBx/mmJSON format |  9ug9.json.gz | Tree view |  PDBx/mmJSON format | |
| Others |  Other downloads | 
-Validation report
| Summary document |  9ug9_validation.pdf.gz | 2.2 MB | Display |  wwPDB validaton report | 
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| Full document |  9ug9_full_validation.pdf.gz | 2.5 MB | Display | |
| Data in XML |  9ug9_validation.xml.gz | 344.8 KB | Display | |
| Data in CIF |  9ug9_validation.cif.gz | 545.4 KB | Display | |
| Arichive directory |  https://data.pdbj.org/pub/pdb/validation_reports/ug/9ug9  ftp://data.pdbj.org/pub/pdb/validation_reports/ug/9ug9 | HTTPS FTP | 
-Related structure data
| Related structure data |  64133MC M: map data used to model this data C: citing same article ( | 
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| Similar structure data | Similarity search - Function & homology  F&H Search | 
- Links
Links
- Assembly
Assembly
| Deposited unit |  
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| 1 | 
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- Components
Components
-Protein , 2 types, 2 molecules ue 
| #1: Protein | Mass: 52076.520 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.)  Homo sapiens (human) / Gene: MIDN / Production host:  Homo sapiens (human) / References: UniProt: Q504T8 | 
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| #8: Protein | Mass: 8284.611 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P60896 | 
-26S proteasome non-ATPase regulatory subunit  ... , 11 types, 11 molecules dUVWfXYZabc          
| #2: Protein | Mass: 39667.871 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P48556 | 
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| #14: Protein | Mass: 105958.234 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: Q99460 | 
| #19: Protein | Mass: 61066.500 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: O43242 | 
| #22: Protein | Mass: 52979.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: O00232 | 
| #24: Protein | Mass: 100313.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: Q13200 | 
| #25: Protein | Mass: 47526.688 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: O00231 | 
| #27: Protein | Mass: 45592.285 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: Q15008 | 
| #29: Protein | Mass: 37086.441 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P51665 | 
| #31: Protein | Mass: 42995.359 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: Q9UNM6 | 
| #33: Protein | Mass: 40781.590 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P55036 | 
| #34: Protein | Mass: 34620.023 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) References: UniProt: O00487, Hydrolases; Acting on peptide bonds (peptidases); Omega peptidases | 
-Proteasome subunit alpha type- ... , 7 types, 14 molecules mMGgHhIiJjKkLl             
| #3: Protein | Mass: 28469.252 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P25788 #16: Protein | Mass: 27432.459 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P60900 #23: Protein | Mass: 25927.535 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P25787 #26: Protein | Mass: 29525.842 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P25789 #28: Protein | Mass: 27929.891 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: O14818 #30: Protein | Mass: 26435.977 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P28066 #32: Protein | Mass: 29595.627 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P25786 | 
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-Proteasome subunit beta type- ... , 7 types, 14 molecules RrnNoOSspPqQTt             
| #4: Protein | Mass: 28510.248 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) References: UniProt: P28074, proteasome endopeptidase complex #5: Protein | Mass: 25377.652 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) References: UniProt: P28072, proteasome endopeptidase complex #9: Protein | Mass: 30000.418 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) References: UniProt: Q99436, proteasome endopeptidase complex #10: Protein | Mass: 26522.396 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P20618 #13: Protein | Mass: 22972.896 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P49720 #17: Protein | Mass: 22864.277 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P49721 #20: Protein | Mass: 29231.178 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P28070 | 
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-26S proteasome regulatory subunit  ... , 6 types, 6 molecules EBDFCA     
| #6: Protein | Mass: 44241.008 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P62333 | 
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| #7: Protein | Mass: 49260.504 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P62191 | 
| #11: Protein | Mass: 47426.141 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P43686 | 
| #12: Protein | Mass: 49266.457 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P17980 | 
| #15: Protein | Mass: 45694.047 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P62195 | 
| #18: Protein | Mass: 48700.805 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)   Homo sapiens (human) / References: UniProt: P35998 | 
-Protein/peptide , 1 types, 1 molecules v
| #21: Protein/peptide | Mass: 1294.587 Da / Num. of mol.: 1 / Source method: isolated from a natural source Details: In the process of protein purification, we used Midnolin (Uniprot: Q504T8) to pull down the endogenous 26S proteasome. However, since the 26S proteasome can unfold and proteolytic cleave ...Details: In the process of protein purification, we used Midnolin (Uniprot: Q504T8) to pull down the endogenous 26S proteasome. However, since the 26S proteasome can unfold and proteolytic cleave many endougeous proteins, we are unable to determine which specific segment of these two proteins corresponds to the density of chain v, which appears to be undergoing unfolding within the AAA-ATPase ring. Therefore, we labeled it as UNK. Source: (natural)  Homo sapiens (human) | 
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-Non-polymers , 3 types, 6 molecules 




| #35: Chemical | | #36: Chemical | #37: Chemical | ChemComp-ZN / |  | 
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-Details
| Has ligand of interest | Y | 
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| Has protein modification | N | 
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY | 
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction | 
- Sample preparation
Sample preparation
| Component | Name: Complex of midnolin and 26S proteasome in MB state / Type: COMPLEX Entity ID: #8, #14, #19, #22, #25, #27, #29, #31, #33-#34, #2, #7, #11, #15, #6, #12, #21, #24, #18, #3, #5, #9, #13, #17, #4, #10, #16, #20, #23, #26, #28, #30, #32 Source: RECOMBINANT | 
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| Molecular weight | Experimental value: NO | 
| Source (natural) | Organism:  Homo sapiens (human) | 
| Source (recombinant) | Organism:  Homo sapiens (human) | 
| Buffer solution | pH: 8 | 
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | 
| Vitrification | Cryogen name: ETHANE | 
- Electron microscopy imaging
Electron microscopy imaging
| Experimental equipment |  Model: Titan Krios / Image courtesy: FEI Company | 
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| 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: 2200 nm / Nominal defocus min: 1200 nm | 
| Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) | 
- Processing
Processing
| EM software | 
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| CTF correction | Type: PHASE FLIPPING ONLY | |||||||||
| 3D reconstruction | Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 108120 / Symmetry type: POINT | 
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