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Open data
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Basic information
| Entry | Database: PDB / ID: 6tnt | |||||||||
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| Title | SUMOylated apoAPC/C with repositioned APC2 WHB domain | |||||||||
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Keywords | CELL CYCLE / APC/C / APC2 / WHB domain / SUMOylation | |||||||||
| Function / homology | Function and homology informationpositive regulation of synapse maturation / Conversion from APC/C:Cdc20 to APC/C:Cdh1 in late anaphase / regulation of mitotic cell cycle spindle assembly checkpoint / Inactivation of APC/C via direct inhibition of the APC/C complex / APC/C:Cdc20 mediated degradation of mitotic proteins / positive regulation of synaptic plasticity / anaphase-promoting complex / Aberrant regulation of mitotic exit in cancer due to RB1 defects / regulation of meiotic cell cycle / anaphase-promoting complex-dependent catabolic process ...positive regulation of synapse maturation / Conversion from APC/C:Cdc20 to APC/C:Cdh1 in late anaphase / regulation of mitotic cell cycle spindle assembly checkpoint / Inactivation of APC/C via direct inhibition of the APC/C complex / APC/C:Cdc20 mediated degradation of mitotic proteins / positive regulation of synaptic plasticity / anaphase-promoting complex / Aberrant regulation of mitotic exit in cancer due to RB1 defects / regulation of meiotic cell cycle / anaphase-promoting complex-dependent catabolic process / metaphase/anaphase transition of mitotic cell cycle / protein branched polyubiquitination / Phosphorylation of the APC/C / regulation of exit from mitosis / positive regulation of dendrite morphogenesis / positive regulation of mitotic metaphase/anaphase transition / protein K11-linked ubiquitination / regulation of mitotic metaphase/anaphase transition / ubiquitin-ubiquitin ligase activity / mitotic metaphase chromosome alignment / Regulation of APC/C activators between G1/S and early anaphase / cullin family protein binding / Transcriptional Regulation by VENTX / enzyme-substrate adaptor activity / positive regulation of axon extension / protein K48-linked ubiquitination / heterochromatin / intercellular bridge / APC/C:Cdc20 mediated degradation of Cyclin B / APC-Cdc20 mediated degradation of Nek2A / nuclear periphery / regulation of mitotic cell cycle / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Assembly of the pre-replicative complex / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / G protein-coupled receptor binding / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / brain development / kinetochore / CDK-mediated phosphorylation and removal of Cdc6 / spindle / neuron projection development / ubiquitin-protein transferase activity / mitotic spindle / Separation of Sister Chromatids / ubiquitin protein ligase activity / Antigen processing: Ubiquitination & Proteasome degradation / nervous system development / mitotic cell cycle / microtubule cytoskeleton / Senescence-Associated Secretory Phenotype (SASP) / ubiquitin-dependent protein catabolic process / protein phosphatase binding / molecular adaptor activity / cell differentiation / protein ubiquitination / negative regulation of gene expression / cell division / intracellular membrane-bounded organelle / ubiquitin protein ligase binding / centrosome / nucleolus / zinc ion binding / nucleoplasm / nucleus / cytoplasm / cytosol Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human)unidentified (others) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.78 Å | |||||||||
Authors | Barford, D. / Yatskevich, S. | |||||||||
| Funding support | United Kingdom, 2items
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Citation | Journal: Cell Rep / Year: 2021Title: Molecular mechanisms of APC/C release from spindle assembly checkpoint inhibition by APC/C SUMOylation. Authors: Stanislau Yatskevich / Jessie S Kroonen / Claudio Alfieri / Thomas Tischer / Anna C Howes / Linda Clijsters / Jing Yang / Ziguo Zhang / Kaige Yan / Alfred C O Vertegaal / David Barford / ![]() Abstract: The anaphase-promoting complex/cyclosome (APC/C) is an E3 ubiquitin ligase that controls cell cycle transitions. Its regulation by the spindle assembly checkpoint (SAC) is coordinated with the ...The anaphase-promoting complex/cyclosome (APC/C) is an E3 ubiquitin ligase that controls cell cycle transitions. Its regulation by the spindle assembly checkpoint (SAC) is coordinated with the attachment of sister chromatids to the mitotic spindle. APC/C SUMOylation on APC4 ensures timely anaphase onset and chromosome segregation. To understand the structural and functional consequences of APC/C SUMOylation, we reconstituted SUMOylated APC/C for electron cryo-microscopy and biochemical analyses. SUMOylation of the APC/C causes a substantial rearrangement of the WHB domain of APC/C's cullin subunit (APC2). Although APC/C SUMOylation results in a modest impact on normal APC/C activity, repositioning APC2 reduces the affinity of APC/C for the mitotic checkpoint complex (MCC), the effector of the SAC. This attenuates MCC-mediated suppression of APC/C activity, allowing for more efficient ubiquitination of APC/C substrates in the presence of the MCC. Thus, SUMOylation stimulates the reactivation of APC/C when the SAC is silenced, contributing to timely anaphase onset. | |||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6tnt.cif.gz | 1.4 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb6tnt.ent.gz | 1.1 MB | Display | PDB format |
| PDBx/mmJSON format | 6tnt.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 6tnt_validation.pdf.gz | 981.7 KB | Display | wwPDB validaton report |
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| Full document | 6tnt_full_validation.pdf.gz | 1.1 MB | Display | |
| Data in XML | 6tnt_validation.xml.gz | 203.6 KB | Display | |
| Data in CIF | 6tnt_validation.cif.gz | 310.5 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/tn/6tnt ftp://data.pdbj.org/pub/pdb/validation_reports/tn/6tnt | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 10536MC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Assembly
| Deposited unit | ![]()
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Components
-Anaphase-promoting complex subunit ... , 11 types, 13 molecules ABDEGWILMNOXY
| #1: Protein | Mass: 216725.469 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ANAPC1, TSG24 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9H1A4 | ||||||||||||
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| #2: Protein | Mass: 9854.647 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ANAPC11, HSPC214 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9NYG5 | ||||||||||||
| #4: Protein | Mass: 14286.727 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ANAPC15, C11orf51, HSPC020 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P60006 | ||||||||||||
| #5: Protein | Mass: 11677.995 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ANAPC16, C10orf104, CENP-27 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q96DE5 | ||||||||||||
| #7: Protein | Mass: 9793.999 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CDC26, ANAPC12, C9orf17 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q8NHZ8#8: Protein | | Mass: 92219.227 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ANAPC4, APC4 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9UJX5#10: Protein | | Mass: 21282.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ANAPC10, APC10 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9UM13#11: Protein | | Mass: 8528.309 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ANAPC13 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9BS18#12: Protein | | Mass: 93938.977 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ANAPC2, APC2, KIAA1406 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9UJX6#13: Protein | | Mass: 85179.766 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ANAPC5, APC5 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9UJX4#15: Protein | Mass: 66929.367 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ANAPC7, APC7 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9UJX3 |
-Cell division cycle protein ... , 3 types, 6 molecules CPFHJK
| #3: Protein | Mass: 68921.031 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CDC23, ANAPC8 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9UJX2#6: Protein | Mass: 91973.125 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CDC27, ANAPC3, D0S1430E, D17S978E / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P30260#9: Protein | Mass: 71747.516 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CDC16, ANAPC6 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q13042 |
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-Protein/peptide / Non-polymers , 2 types, 4 molecules T

| #14: Protein/peptide | Mass: 1183.313 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) unidentified (others) / Production host: Trichoplusia ni (cabbage looper) |
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| #16: Chemical |
-Details
| Has ligand of interest | N |
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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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| Buffer solution | pH: 8 | ||||||||||||||||||||||||||||
| Specimen | Conc.: 0.16 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||
| Vitrification | Cryogen name: ETHANE / Humidity: 100 % |
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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: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD |
| Image recording | Electron dose: 0.5 e/Å2 / Detector mode: COUNTING / Film or detector model: FEI FALCON III (4k x 4k) |
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Processing
| EM software | Name: RELION / Version: 3 / Category: initial Euler assignment |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| 3D reconstruction | Resolution: 3.78 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 137954 / Symmetry type: POINT |
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About Yorodumi




Homo sapiens (human)
United Kingdom, 2items
Citation
UCSF Chimera










PDBj















Trichoplusia ni (cabbage looper)
