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Yorodumi- PDB-9yuz: Structure of the human 20S proteasome in complex with a beta5-sel... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 9yuz | ||||||||||||||||||||||||
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| Title | Structure of the human 20S proteasome in complex with a beta5-selective covalent syringolin analogue inhibitor. | ||||||||||||||||||||||||
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Keywords | HYDROLASE / Proteasome / 20S / Inhibitor / Covalent | ||||||||||||||||||||||||
| Function / homology | Function and homology informationpurine ribonucleoside triphosphate binding / Antigen processing: Ub, ATP-independent proteasomal degradation / sperm glycocalyx / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / perinuclear theca / proteasome core complex / Cross-presentation of soluble exogenous antigens (endosomes) / Somitogenesis / myofibril ...purine ribonucleoside triphosphate binding / Antigen processing: Ub, ATP-independent proteasomal degradation / sperm glycocalyx / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / perinuclear theca / proteasome core complex / Cross-presentation of soluble exogenous antigens (endosomes) / Somitogenesis / myofibril / proteasomal ubiquitin-independent protein catabolic process / sperm head-tail coupling apparatus / immune system process / NF-kappaB binding / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / threonine-type endopeptidase activity / proteasome assembly / proteasome core complex, alpha-subunit complex / ciliary tip / : / proteasome complex / Regulation of activated PAK-2p34 by proteasome mediated degradation / sarcomere / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / 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 / sperm end piece / centriole / negative regulation of inflammatory response to antigenic stimulus / P-body / Assembly of the pre-replicative complex / Vpu mediated degradation of CD4 / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / lipopolysaccharide binding / Degradation of DVL / Dectin-1 mediated noncanonical NF-kB signaling / Degradation of CRY and PER proteins / Degradation of AXIN / Hh mutants are degraded by ERAD / Activation of NF-kappaB in B cells / G2/M Checkpoints / Hedgehog ligand biogenesis / Degradation of GLI1 by the proteasome / Defective CFTR causes cystic fibrosis / Autodegradation of the E3 ubiquitin ligase COP1 / Regulation of RUNX3 expression and activity / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / Hedgehog 'on' state / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Vif-mediated degradation of APOBEC3G / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / MAPK6/MAPK4 signaling / Degradation of CDH1 / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / ABC-family protein mediated transport / CDK-mediated phosphorylation and removal of Cdc6 / CLEC7A (Dectin-1) signaling / SCF(Skp2)-mediated degradation of p27/p21 / FCERI mediated NF-kB activation / response to virus / Regulation of expression of SLITs and ROBOs / nuclear matrix / Regulation of PTEN stability and activity / Interleukin-1 signaling / Orc1 removal from chromatin / Regulation of RAS by GAPs / Regulation of RUNX2 expression and activity / The role of GTSE1 in G2/M progression after G2 checkpoint / Separation of Sister Chromatids / UCH proteinases / KEAP1-NFE2L2 pathway / Downstream TCR signaling / peptidase activity / Antigen processing: Ubiquitination & Proteasome degradation / sperm principal piece / RUNX1 regulates transcription of genes involved in differentiation of HSCs / ER-Phagosome pathway / Neddylation / regulation of inflammatory response / response to oxidative stress / sperm midpiece / secretory granule lumen / endopeptidase activity / ficolin-1-rich granule lumen / proteasome-mediated ubiquitin-dependent protein catabolic process / positive regulation of canonical NF-kappaB signal transduction / Ub-specific processing proteases / cilium / nuclear body Similarity search - Function | ||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.6 Å | ||||||||||||||||||||||||
Authors | Yan, N.L. / Gu, X. / Fajtova, P. / Tse, E. / Melo, A. / Southworth, D.R. / O'Donoghue, A. / Sello, J.K. / Gestwicki, J.E. | ||||||||||||||||||||||||
| Funding support | 1items
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Citation | Journal: J Med Chem / Year: 2026Title: An Optimized Route to the Syringolin Natural Products Enables Combinatorial Synthesis of Selective, Bioactive Inhibitors of the 20S Proteasome. Authors: Xilin Gu / Pavla Fajtova / Nicholas L Yan / Aditi Saxena / Fan Fei / Jiyun Zhu / Eric Tse / Arthur Melo / Euna Yoo / Nathan H Buchwald / Daniel R Southworth / Matthew Bogyo / Joseph L Derisi ...Authors: Xilin Gu / Pavla Fajtova / Nicholas L Yan / Aditi Saxena / Fan Fei / Jiyun Zhu / Eric Tse / Arthur Melo / Euna Yoo / Nathan H Buchwald / Daniel R Southworth / Matthew Bogyo / Joseph L Derisi / Jason E Gestwicki / Anthony J O'Donoghue / Jason K Sello / ![]() Abstract: The syringolin natural products are covalent inhibitors of the 20S proteasome that inspire therapeutic development. Here, we report a new route to the syringolins amenable to solution and solid-phase ...The syringolin natural products are covalent inhibitors of the 20S proteasome that inspire therapeutic development. Here, we report a new route to the syringolins amenable to solution and solid-phase synthesis that overcomes a problematic macrocyclization. Exploiting our synthetic approach and substrate mimicry models for proteasome inhibition by the syringolins, we generated a collection of hypothetically selective inhibitors of the proteasome, which is an emerging target for antimalarial drugs. We identified compounds from the library having high second-order rate constants for proteasome inhibition and nanomolar antiparasitic activity. They exhibited selectivity for the proteasome over the human proteasome. We solved cryo-EM structures of an inhibitor bound to both 20S proteasomes, revealing key contacts favoring species-selective inhibition. Together, this work provides an improved route to syringolin analogs, sheds new light on substrate mimicry by the syringolins, and provides a structural basis for the pursuit of new antimalarial drugs. | ||||||||||||||||||||||||
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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 | 9yuz.cif.gz | 1.1 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb9yuz.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9yuz.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/yu/9yuz ftp://data.pdbj.org/pub/pdb/validation_reports/yu/9yuz | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 73510MC ![]() 9yuyC 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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Components
-Proteasome subunit alpha type- ... , 7 types, 14 molecules AOBPCQDRESFTGU
| #1: Protein | Mass: 25927.535 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA2, HC3, PSC3 / Production host: ![]() References: UniProt: P25787, proteasome endopeptidase complex #2: Protein | Mass: 29525.842 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA4, HC9, PSC9 / Production host: ![]() References: UniProt: P25789, proteasome endopeptidase complex #3: Protein | Mass: 27929.891 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA7, HSPC / Production host: ![]() #4: Protein | Mass: 26435.977 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA5 / Production host: ![]() #5: Protein | Mass: 29595.627 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA1, HC2, NU, PROS30, PSC2 / Production host: ![]() References: UniProt: P25786, proteasome endopeptidase complex #6: Protein | Mass: 28469.252 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA3, HC8, PSC8 / Production host: ![]() References: UniProt: P25788, proteasome endopeptidase complex #7: Protein | Mass: 27432.459 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMA6, PROS27 / Production host: ![]() References: UniProt: P60900, proteasome endopeptidase complex |
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-Proteasome subunit beta type- ... , 7 types, 14 molecules HVIWJXKYLZMaNb
| #8: Protein | Mass: 30000.418 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB7, Z / Production host: ![]() References: UniProt: Q99436, proteasome endopeptidase complex #9: Protein | Mass: 22972.896 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB3 / Production host: ![]() References: UniProt: P49720, proteasome endopeptidase complex #10: Protein | Mass: 22864.277 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB2 / Production host: ![]() References: UniProt: P49721, proteasome endopeptidase complex #11: Protein | Mass: 28510.248 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB5, LMPX, MB1, X / Production host: ![]() References: UniProt: P28074, proteasome endopeptidase complex #12: Protein | Mass: 26522.396 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB1, PSC5 / Production host: ![]() References: UniProt: P20618, proteasome endopeptidase complex #13: Protein | Mass: 29231.178 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB4, PROS26 / Production host: ![]() References: UniProt: P28070, proteasome endopeptidase complex #14: Protein | Mass: 25377.652 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PSMB6, LMPY, Y / Production host: ![]() References: UniProt: P28072, proteasome endopeptidase complex |
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-Non-polymers , 1 types, 2 molecules
| #15: Chemical | Mass: 625.731 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C33H44FN5O6 / 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: Human 20S proteasome / Type: COMPLEX / Entity ID: #1-#14 / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | 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: 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: 1800 nm / Nominal defocus min: 800 nm |
| Image recording | Electron dose: 45 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 50210 / Symmetry type: POINT | ||||||||||||||||||||||||
| Atomic model building | PDB-ID: 7NAN Accession code: 7NAN / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||
| Refinement | Highest resolution: 2.6 Å Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
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Homo sapiens (human)
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FIELD EMISSION GUN
