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Yorodumi- EMDB-63592: The cryo-EM structure of 26S proteasome-Midnolin complex in the M... -
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Basic information
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| Title | The cryo-EM structure of 26S proteasome-Midnolin complex in the MD state | |||||||||||||||
Map data | composite map of 26S proteasome complex | |||||||||||||||
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Keywords | midnolin / 26S proteasome / complex / HYDROLASE / MD state | |||||||||||||||
| Function / homology | Function and homology informationnegative regulation of glucokinase activity / positive regulation of inclusion body assembly / thyrotropin-releasing hormone receptor binding / nuclear proteasome complex / host-mediated perturbation of viral transcription / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / proteasome accessory complex / purine ribonucleoside triphosphate binding / integrator complex ...negative regulation of glucokinase activity / positive regulation of inclusion body assembly / thyrotropin-releasing hormone receptor binding / nuclear proteasome complex / host-mediated perturbation of viral transcription / Impaired BRCA2 translocation to the nucleus / Impaired BRCA2 binding to SEM1 (DSS1) / proteasome accessory complex / purine ribonucleoside triphosphate binding / integrator complex / proteasome regulatory particle / CD8-positive, alpha-beta T cell differentiation / thymic T cell selection / cytosolic proteasome complex / CD8-positive, alpha-beta T cell homeostasis / positive regulation of proteasomal protein catabolic process / proteasome-activating activity / Antigen processing: Ub, ATP-independent proteasomal degradation / proteasome regulatory particle, lid subcomplex / proteasome regulatory particle, base subcomplex / negative regulation of programmed cell death / T-helper 1 cell differentiation / negative regulation of regulatory T cell differentiation / protein K63-linked deubiquitination / metal-dependent deubiquitinase activity / cellular response to type I interferon / Regulation of ornithine decarboxylase (ODC) / proteasome core complex / Proteasome assembly / T-helper 17 cell differentiation / retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum / Cross-presentation of soluble exogenous antigens (endosomes) / transcription factor binding / Somitogenesis / flagellated sperm motility / K63-linked deubiquitinase activity / 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) / Resolution of D-loop Structures through Holliday Junction Intermediates / proteasome binding / Impaired BRCA2 binding to RAD51 / myofibril / negative regulation of insulin secretion / positive regulation of RNA polymerase II transcription preinitiation complex assembly / proteasomal ubiquitin-independent protein catabolic process / general transcription initiation factor binding / Presynaptic phase of homologous DNA pairing and strand exchange / proteasome storage granule / protein deubiquitination / AMPK-induced ERAD and lysosome mediated degradation of PD-L1(CD274) / polyubiquitin modification-dependent protein binding / proteasome endopeptidase complex / NF-kappaB binding / proteasome core complex, beta-subunit complex / endopeptidase activator activity / threonine-type endopeptidase activity / proteasome core complex, alpha-subunit complex / proteasome assembly / mRNA export from nucleus / GSK3B-mediated proteasomal degradation of PD-L1(CD274) / SARS-CoV-1 targets host intracellular signalling and regulatory pathways / SPOP-mediated proteasomal degradation of PD-L1(CD274) / regulation of G1/S transition of mitotic cell cycle / immune system process / enzyme regulator activity / regulation of macroautophagy / positive regulation of interleukin-2 production / ERAD pathway / ciliary tip / Ribosome Quality Control (RQC) complex extracts and degrades nascent peptide / response to type II interferon / inclusion body / TBP-class protein binding / stem cell differentiation / proteasome complex / : / regulation of proteasomal protein catabolic process / sarcomere / sperm end piece / Regulation of activated PAK-2p34 by proteasome mediated degradation / ubiquitin binding / proteasomal protein catabolic process / Autodegradation of Cdh1 by Cdh1:APC/C / negative regulation of inflammatory response to antigenic stimulus / 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 / lipopolysaccharide binding / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / AUF1 (hnRNP D0) binds and destabilizes mRNA / TNFR2 non-canonical NF-kB pathway / Assembly of the pre-replicative complex / Vpu mediated degradation of CD4 / P-body / Cdc20:Phospho-APC/C mediated degradation of Cyclin A Similarity search - Function | |||||||||||||||
| Biological species | Homo sapiens (human) | |||||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.31 Å | |||||||||||||||
Authors | Wang HY / Xu WQ | |||||||||||||||
| Funding support | China, 4 items
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Citation | Journal: Protein Cell / Year: 2026Title: Structure-based engineering of the midnolin-proteasome pathway for targeted protein degradation. Authors: Hongyang Wang / Ying Zheng / Tiantian Wang / Xue Zhang / Peipei Wang / Chuancun Wei / Hongyue Li / Quan Wang / Lu Zhang / Xisong Ke / Wenqing Xu / ![]() | |||||||||||||||
| History |
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_63592.map.gz | 208.1 MB | EMDB map data format | |
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| Header (meta data) | emd-63592-v30.xml emd-63592.xml | 59.7 KB 59.7 KB | Display Display | EMDB header |
| Images | emd_63592.png | 20.5 KB | ||
| Filedesc metadata | emd-63592.cif.gz | 15.5 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-63592 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-63592 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9m2wMC ![]() 9uf8C ![]() 9ug9C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_63592.map.gz / Format: CCP4 / Size: 282.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | composite map of 26S proteasome complex | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
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Sample components
+Entire : 26S proteasome degradation complex
+Supramolecule #1: 26S proteasome degradation complex
+Macromolecule #1: 26S proteasome regulatory subunit 7
+Macromolecule #2: 26S proteasome regulatory subunit 4
+Macromolecule #3: 26S proteasome regulatory subunit 8
+Macromolecule #4: 26S proteasome regulatory subunit 6B
+Macromolecule #5: 26S proteasome regulatory subunit 10B
+Macromolecule #6: 26S proteasome regulatory subunit 6A
+Macromolecule #7: Proteasome subunit alpha type-6
+Macromolecule #8: Proteasome subunit alpha type-2
+Macromolecule #9: Proteasome subunit alpha type-4
+Macromolecule #10: Proteasome subunit alpha type-7
+Macromolecule #11: Proteasome subunit alpha type-5
+Macromolecule #12: Proteasome subunit alpha type-1
+Macromolecule #13: Proteasome subunit alpha type-3
+Macromolecule #14: Proteasome subunit beta type-6
+Macromolecule #15: Proteasome subunit beta type-7
+Macromolecule #16: Proteasome subunit beta type-3
+Macromolecule #17: Proteasome subunit beta type-2
+Macromolecule #18: Proteasome subunit beta type-5
+Macromolecule #19: Proteasome subunit beta type-1
+Macromolecule #20: Proteasome subunit beta type-4
+Macromolecule #21: 26S proteasome non-ATPase regulatory subunit 1
+Macromolecule #22: 26S proteasome non-ATPase regulatory subunit 3
+Macromolecule #23: 26S proteasome non-ATPase regulatory subunit 12
+Macromolecule #24: 26S proteasome non-ATPase regulatory subunit 11
+Macromolecule #25: 26S proteasome non-ATPase regulatory subunit 6
+Macromolecule #26: 26S proteasome non-ATPase regulatory subunit 7
+Macromolecule #27: 26S proteasome non-ATPase regulatory subunit 13
+Macromolecule #28: 26S proteasome non-ATPase regulatory subunit 4
+Macromolecule #29: 26S proteasome non-ATPase regulatory subunit 14
+Macromolecule #30: 26S proteasome non-ATPase regulatory subunit 8
+Macromolecule #31: 26S proteasome complex subunit SEM1
+Macromolecule #32: 26S proteasome non-ATPase regulatory subunit 2
+Macromolecule #33: Substrate
+Macromolecule #34: Midnolin
+Macromolecule #35: ADENOSINE-5'-TRIPHOSPHATE
+Macromolecule #36: ADENOSINE-5'-DIPHOSPHATE
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 8 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | TFS KRIOS |
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| Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 60.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.2 µm |
| Sample stage | Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
China, 4 items
Citation





















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Processing
FIELD EMISSION GUN

