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- EMDB-10538: SUMOylated apoAPC/C with density at APC2-APC4 interface -

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Basic information

Entry
Database: EMDB / ID: EMD-10538
TitleSUMOylated apoAPC/C with density at APC2-APC4 interface
Map data
Sample
  • Complex: SUMOylated apoAPC/C with density at APC2-APC4 interface
Function / homology
Function and homology information


regulation of mitotic cell cycle spindle assembly checkpoint / positive regulation of synapse maturation / Conversion from APC/C:Cdc20 to APC/C:Cdh1 in late anaphase / Inactivation of APC/C via direct inhibition of the APC/C complex / APC/C:Cdc20 mediated degradation of mitotic proteins / anaphase-promoting complex / Aberrant regulation of mitotic exit in cancer due to RB1 defects / anaphase-promoting complex-dependent catabolic process / regulation of meiotic cell cycle / positive regulation of mitotic metaphase/anaphase transition ...regulation of mitotic cell cycle spindle assembly checkpoint / positive regulation of synapse maturation / Conversion from APC/C:Cdc20 to APC/C:Cdh1 in late anaphase / Inactivation of APC/C via direct inhibition of the APC/C complex / APC/C:Cdc20 mediated degradation of mitotic proteins / anaphase-promoting complex / Aberrant regulation of mitotic exit in cancer due to RB1 defects / anaphase-promoting complex-dependent catabolic process / regulation of meiotic cell cycle / positive regulation of mitotic metaphase/anaphase transition / metaphase/anaphase transition of mitotic cell cycle / regulation of exit from mitosis / positive regulation of synaptic plasticity / Phosphorylation of the APC/C / protein K11-linked ubiquitination / enzyme-substrate adaptor activity / regulation of mitotic metaphase/anaphase transition / positive regulation of dendrite morphogenesis / ubiquitin-ubiquitin ligase activity / mitotic metaphase chromosome alignment / cullin family protein binding / Regulation of APC/C activators between G1/S and early anaphase / Transcriptional Regulation by VENTX / positive regulation of axon extension / heterochromatin / APC/C:Cdc20 mediated degradation of Cyclin B / regulation of mitotic cell cycle / APC-Cdc20 mediated degradation of Nek2A / nuclear periphery / 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 / brain development / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / mitotic spindle / spindle / kinetochore / CDK-mediated phosphorylation and removal of Cdc6 / ubiquitin-protein transferase activity / Separation of Sister Chromatids / ubiquitin protein ligase activity / microtubule cytoskeleton / Antigen processing: Ubiquitination & Proteasome degradation / mitotic cell cycle / nervous system development / ubiquitin-dependent protein catabolic process / Senescence-Associated Secretory Phenotype (SASP) / protein phosphatase binding / cell differentiation / molecular adaptor activity / protein ubiquitination / cell cycle / cell division / negative regulation of gene expression / centrosome / ubiquitin protein ligase binding / nucleolus / zinc ion binding / nucleoplasm / nucleus / cytosol / cytoplasm
Similarity search - Function
Anaphase-promoting complex subunit 15 / Anaphase-promoting complex subunit 15 / Anaphase-promoting complex subunit 4, metazoa / : / Anaphase-promoting complex subunit 5, N-terminal domain / Anaphase-promoting complex subunit 1, C-terminal / Anaphase-promoting complex subunit 1, middle domain / : / : / Anaphase-promoting complex subunit 1 WD40 beta-propeller domain ...Anaphase-promoting complex subunit 15 / Anaphase-promoting complex subunit 15 / Anaphase-promoting complex subunit 4, metazoa / : / Anaphase-promoting complex subunit 5, N-terminal domain / Anaphase-promoting complex subunit 1, C-terminal / Anaphase-promoting complex subunit 1, middle domain / : / : / Anaphase-promoting complex subunit 1 WD40 beta-propeller domain / Anaphase-promoting complex sub unit 1 C-terminal domain / Anaphase-promoting complex subunit 1 middle domain / APC1 beta sandwich domain / Anaphase-promoting complex subunit 16 / Anaphase-promoting complex, subunit 16 / Cdc23 / Apc13 / Anaphase-promoting complex subunit 4 / Anaphase-promoting complex subunit 4 long domain / Anaphase promoting complex subunit 8 / Cdc23 / Apc13p protein / Anaphase-promoting complex, cyclosome, subunit 4 / Anaphase-promoting complex subunit 1 / Anaphase-promoting complex subunit 5 domain / Anaphase-promoting complex subunit 5 / Anaphase-promoting complex subunit 5 / Anaphase-promoting complex subunit APC10/Doc1 / Anaphase-promoting complex, subunit CDC26 / Anaphase-promoting complex APC subunit CDC26 / Anaphase-promoting complex subunit 11, RING-H2 finger / Anaphase-promoting complex subunit 11 RING-H2 finger / Anaphase-promoting complex subunit 2, C-terminal / Anaphase-promoting complex subunit 2 / Anaphase promoting complex (APC) subunit 2 / Anaphase promoting complex (APC) subunit 2 / Anaphase-promoting complex, cyclosome, subunit 3 / APC10/DOC domain / Anaphase-promoting complex, subunit 10 (APC10) / DOC domain profile. / Anaphase-promoting complex, subunit 10 (APC10) / TPR repeat / Tetratricopeptide repeat / Anaphase-promoting complex subunit 4, WD40 domain / Anaphase-promoting complex subunit 4 WD40 domain / Tetratricopeptide repeat / Cullin / Cullin, N-terminal / Cullin homology domain / Cullin homology domain superfamily / Cullin family / Cullin family profile. / Tetratricopeptide repeat 1 / Tetratricopeptide repeat / Tetratricopeptide repeat / TPR repeat region circular profile. / TPR repeat profile. / Tetratricopeptide repeats / Tetratricopeptide repeat / Galactose-binding-like domain superfamily / Zinc finger RING-type profile. / Zinc finger, RING-type / Armadillo-like helical / Tetratricopeptide-like helical domain superfamily / Zinc finger, RING/FYVE/PHD-type / Winged helix DNA-binding domain superfamily / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / Winged helix-like DNA-binding domain superfamily
Similarity search - Domain/homology
Cell division cycle protein 27 homolog / Anaphase-promoting complex subunit 15 / Cell division cycle protein 16 homolog / Anaphase-promoting complex subunit CDC26 / Anaphase-promoting complex subunit 16 / Anaphase-promoting complex subunit 13 / Anaphase-promoting complex subunit 1 / Anaphase-promoting complex subunit 11 / Cell division cycle protein 23 homolog / Anaphase-promoting complex subunit 7 ...Cell division cycle protein 27 homolog / Anaphase-promoting complex subunit 15 / Cell division cycle protein 16 homolog / Anaphase-promoting complex subunit CDC26 / Anaphase-promoting complex subunit 16 / Anaphase-promoting complex subunit 13 / Anaphase-promoting complex subunit 1 / Anaphase-promoting complex subunit 11 / Cell division cycle protein 23 homolog / Anaphase-promoting complex subunit 7 / Anaphase-promoting complex subunit 5 / Anaphase-promoting complex subunit 4 / Anaphase-promoting complex subunit 2 / Anaphase-promoting complex subunit 10
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.99 Å
AuthorsBarford D / Yatskevich S
Funding support United Kingdom, 2 items
OrganizationGrant numberCountry
Medical Research Council (MRC, United Kingdom)MC_UP_1201/6 United Kingdom
Cancer Research UKC576/A14109 United Kingdom
CitationJournal: Cell Rep / Year: 2021
Title: 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.
History
DepositionDec 10, 2019-
Header (metadata) releaseJan 13, 2021-
Map releaseJan 13, 2021-
UpdateApr 14, 2021-
Current statusApr 14, 2021Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.007
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.007
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_10538.png

Downloads & links

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Map

FileDownload / File: emd_10538.map.gz / Format: CCP4 / Size: 147.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.085 Å
Density
Contour LevelBy AUTHOR: 0.00485 / Movie #1: 0.007
Minimum - Maximum-0.01602255 - 0.043714322
Average (Standard dev.)0.00035848413 (±0.002260164)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions338338338
Spacing338338338
CellA=B=C: 366.73 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0851.0851.085
M x/y/z338338338
origin x/y/z0.0000.0000.000
length x/y/z366.730366.730366.730
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS338338338
D min/max/mean-0.0160.0440.000

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Supplemental data

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Sample components

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Entire : SUMOylated apoAPC/C with density at APC2-APC4 interface

EntireName: SUMOylated apoAPC/C with density at APC2-APC4 interface
Components
  • Complex: SUMOylated apoAPC/C with density at APC2-APC4 interface

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Supramolecule #1: SUMOylated apoAPC/C with density at APC2-APC4 interface

SupramoleculeName: SUMOylated apoAPC/C with density at APC2-APC4 interface
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#15
Details: Overall map of the SUMOylated apoAPC/C that shows additional density at APC2-APC4 interface
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration0.16 mg/mL
BufferpH: 8
VitrificationCryogen name: ETHANE / Chamber humidity: 100 %

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Average electron dose: 0.5 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.00)
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.99 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 165281

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