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Open data
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Basic information
| Entry | Database: PDB / ID: 8ypk | |||||||||
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| Title | mouse proteasome 20S subunit in complex with compound 1 | |||||||||
Components |
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Keywords | HYDROLASE / Inhibitor / complex / Proteasome | |||||||||
| Function / homology | Function and homology informationRegulation of ornithine decarboxylase (ODC) / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Ubiquitin-dependent degradation of Cyclin D / AUF1 (hnRNP D0) binds and destabilizes mRNA / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / SCF(Skp2)-mediated degradation of p27/p21 ...Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Ubiquitin-dependent degradation of Cyclin D / AUF1 (hnRNP D0) binds and destabilizes mRNA / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / SCF(Skp2)-mediated degradation of p27/p21 / Assembly of the pre-replicative complex / CDK-mediated phosphorylation and removal of Cdc6 / Autodegradation of the E3 ubiquitin ligase COP1 / G2/M Checkpoints / Degradation of AXIN / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / Asymmetric localization of PCP proteins / Regulation of RUNX3 expression and activity / Regulation of RAS by GAPs / Regulation of PTEN stability and activity / Regulation of RUNX2 expression and activity / Degradation of GLI1 by the proteasome / UCH proteinases / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Degradation of DVL / Orc1 removal from chromatin / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Dectin-1 mediated noncanonical NF-kB signaling / NIK-->noncanonical NF-kB signaling / TNFR2 non-canonical NF-kB pathway / Hedgehog ligand biogenesis / Hedgehog 'on' state / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Degradation of beta-catenin by the destruction complex / Activation of NF-kappaB in B cells / The role of GTSE1 in G2/M progression after G2 checkpoint / FCERI mediated NF-kB activation / CLEC7A (Dectin-1) signaling / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Interleukin-1 signaling / Separation of Sister Chromatids / Downstream TCR signaling / MAPK6/MAPK4 signaling / GLI3 is processed to GLI3R by the proteasome / ABC-family proteins mediated transport / Neddylation / Ub-specific processing proteases / KEAP1-NFE2L2 pathway / Antigen processing: Ubiquitination & Proteasome degradation / proteasome core complex / myofibril / immune system process / NF-kappaB binding / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / threonine-type endopeptidase activity / proteasome core complex, alpha-subunit complex / skeletal muscle tissue development / proteasomal protein catabolic process / Neutrophil degranulation / proteolysis involved in protein catabolic process / proteasome complex / sarcomere / lipopolysaccharide binding / negative regulation of inflammatory response to antigenic stimulus / P-body / protein catabolic process / response to virus / nuclear matrix / peptidase activity / response to oxidative stress / ubiquitin-dependent protein catabolic process / endopeptidase activity / proteasome-mediated ubiquitin-dependent protein catabolic process / positive regulation of canonical NF-kappaB signal transduction / nuclear body / cilium / ciliary basal body / ribosome / ubiquitin protein ligase binding / centrosome / mitochondrion / proteolysis / RNA binding / nucleoplasm / identical protein binding / cytosol / cytoplasm Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.7 Å | |||||||||
Authors | Kashima, A. / Arai, Y. | |||||||||
| Funding support | 1items
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Citation | Journal: Bioorg Med Chem / Year: 2024Title: Optimization of α-amido boronic acids via cryo-electron microscopy analysis: Discovery of a novel highly selective immunoproteasome subunit LMP7 (β5i)/LMP2 (β1i) dual inhibitor. Authors: Yuuki Arai / Hiroaki Shitama / Masahito Yamagishi / Satoshi Ono / Akiko Kashima / Masahiro Hiraizumi / Naoki Tsuda / Koushirou Katayama / Kouji Tanaka / Yuzo Koda / Sayuka Kato / Kei Sakata ...Authors: Yuuki Arai / Hiroaki Shitama / Masahito Yamagishi / Satoshi Ono / Akiko Kashima / Masahiro Hiraizumi / Naoki Tsuda / Koushirou Katayama / Kouji Tanaka / Yuzo Koda / Sayuka Kato / Kei Sakata / Osamu Nureki / Hiroshi Miyazaki / ![]() Abstract: The immunoproteasome subunit LMP7 (β5i)/LMP2 (β1i) dual blockade has been reported to suppress B cell differentiation and activation, suggesting that the dual inhibition of LMP7/LMP2 is a promising ...The immunoproteasome subunit LMP7 (β5i)/LMP2 (β1i) dual blockade has been reported to suppress B cell differentiation and activation, suggesting that the dual inhibition of LMP7/LMP2 is a promising approach for treating autoimmune diseases. In contrast, the inhibition of the constitutive proteasome subunit β5c correlates with cytotoxicity against non-immune cells. Therefore, LMP7/LMP2 dual inhibitors with high selectivity over β5c may be desirable for treating autoimmune diseases. In this study, we present the optimization and discovery of α-amido boronic acids using cryo-electron microscopy (cryo-EM). The exploitation of structural differences between the proteasome subunits led to the identification of a highly selective LMP7/LMP2 dual inhibitor 19. Molecular dynamics simulation based on cryo-EM structures of the proteasome subunits complexed with 19 explained the inhibitory activity profile. In mice immunized with 4-hydroxy-3-nitrophenylacetyl conjugated to ovalbumin, results indicate that 19 is orally bioavailable and shows promise as potential treatment for autoimmune diseases. | |||||||||
| History |
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8ypk.cif.gz | 1.2 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb8ypk.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 8ypk.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8ypk_validation.pdf.gz | 1.7 MB | Display | wwPDB validaton report |
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| Full document | 8ypk_full_validation.pdf.gz | 1.7 MB | Display | |
| Data in XML | 8ypk_validation.xml.gz | 141.9 KB | Display | |
| Data in CIF | 8ypk_validation.cif.gz | 229.7 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/yp/8ypk ftp://data.pdbj.org/pub/pdb/validation_reports/yp/8ypk | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 39482MC ![]() 8ysxC ![]() 8yvgC ![]() 8yvpC 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 |
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Links
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Assembly
| Deposited unit | ![]()
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| Noncrystallographic symmetry (NCS) | NCS domain:
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Components
-Proteasome subunit beta type- ... , 7 types, 14 molecules AFTVSXDCBEWaYU
| #1: Protein | Mass: 22014.920 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: Q60692, proteasome endopeptidase complex #5: Protein | Mass: 22935.377 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #6: Protein | Mass: 26405.182 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #7: Protein | Mass: 22554.545 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: O55234, proteasome endopeptidase complex #12: Protein | Mass: 25280.010 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P70195, proteasome endopeptidase complex #13: Protein | Mass: 29143.053 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #14: Protein | Mass: 22988.895 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-Proteasome subunit alpha type- ... , 7 types, 14 molecules PbNIRKJQLGHMOZ
| #2: Protein | Mass: 25955.549 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #3: Protein | Mass: 27897.887 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #4: Protein | Mass: 27405.434 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #8: Protein | Mass: 28442.248 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #9: Protein | Mass: 29586.576 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #10: Protein | Mass: 26435.977 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #11: Protein | Mass: 29512.807 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-Non-polymers , 1 types, 4 molecules
| #15: Chemical | ChemComp-A1L0C / [( Mass: 308.184 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C14H25BN4O3 / Feature type: SUBJECT OF INVESTIGATION |
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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
| Component | Name: 20S proteasome / Type: COMPLEX / Entity ID: #2-#6, #8-#14 / Source: NATURAL |
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| Source (natural) | Organism: ![]() |
| Buffer solution | pH: 7.5 |
| 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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1600 nm / Nominal defocus min: 800 nm |
| Image recording | Electron dose: 49.692 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
| EM software | Name: REFMAC / Version: 5.8.0258 / Category: model refinement | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 25513 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement | Resolution: 2.7→172.54 Å / Cor.coef. Fo:Fc: 0.838 / SU B: 15.334 / SU ML: 0.281 / ESU R: 0.48 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES
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| Solvent computation | Solvent model: PARAMETERS FOR MASK CACLULATION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 50.569 Å2
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| Refinement step | Cycle: 1 / Total: 47992 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refine LS restraints |
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FIELD EMISSION GUN