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- EMDB-1820: Yeast anaphase promoting complex (monomer) -

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Basic information

Entry
Database: EMDB / ID: EMD-1820
TitleYeast anaphase promoting complex (monomer)
Map data3D structure of the yeast anaphase promoting complex
Sample
  • Sample: Yeast anaphase promoting complexAnaphase-promoting complex
  • Organelle or cellular component: APCC
Keywordsanaphase / yeast / cell cycle
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
Methodsingle particle reconstruction / cryo EM / Resolution: 25.0 Å
AuthorsBuschhorn BA / Petzold G / Galova M / Dube P / Kraft C / Herzog F / Peters JM / Stark H
CitationJournal: Nat Struct Mol Biol / Year: 2011
Title: Substrate binding on the APC/C occurs between the coactivator Cdh1 and the processivity factor Doc1.
Authors: Bettina A Buschhorn / Georg Petzold / Marta Galova / Prakash Dube / Claudine Kraft / Franz Herzog / Holger Stark / Jan-Michael Peters /
Abstract: The anaphase-promoting complex/cyclosome (APC/C) is a 22S ubiquitin ligase complex that initiates chromosome segregation and mitotic exit. We have used biochemical and electron microscopic analyses ...The anaphase-promoting complex/cyclosome (APC/C) is a 22S ubiquitin ligase complex that initiates chromosome segregation and mitotic exit. We have used biochemical and electron microscopic analyses of Saccharomyces cerevisiae and human APC/C to address how the APC/C subunit Doc1 contributes to recruitment and processive ubiquitylation of APC/C substrates, and to understand how APC/C monomers interact to form a 36S dimeric form. We show that Doc1 interacts with Cdc27, Cdc16 and Apc1 and is located in the vicinity of the cullin-RING module Apc2-Apc11 in the inner cavity of the APC/C. Substrate proteins also bind in the inner cavity, in close proximity to Doc1 and the coactivator Cdh1, and induce conformational changes in Apc2-Apc11. Our results suggest that substrates are recruited to the APC/C by binding to a bipartite substrate receptor composed of a coactivator protein and Doc1.
History
DepositionNov 11, 2010-
Header (metadata) releaseMar 16, 2012-
Map releaseMar 16, 2012-
UpdateDec 11, 2013-
Current statusDec 11, 2013Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.06
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.06
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

image1820.png

Downloads & links

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Map

FileDownload / File: emd_1820.map.gz / Format: CCP4 / Size: 3.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotation3D structure of the yeast anaphase promoting complex
Voxel sizeX=Y=Z: 3.6 Å
Density
Contour LevelBy AUTHOR: 0.06 / Movie #1: 0.06
Minimum - Maximum-0.33142108 - 1.0711745
Average (Standard dev.)-0.00005669 (±0.06583346)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions100100100
Spacing100100100
CellA=B=C: 360.0 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z3.63.63.6
M x/y/z100100100
origin x/y/z0.0000.0000.000
length x/y/z360.000360.000360.000
α/β/γ90.00090.00090.000
start NX/NY/NZ-70-70-70
NX/NY/NZ140140140
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS100100100
D min/max/mean-0.3311.071-0.000

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Supplemental data

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Sample components

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Entire : Yeast anaphase promoting complex

EntireName: Yeast anaphase promoting complexAnaphase-promoting complex
Components
  • Sample: Yeast anaphase promoting complexAnaphase-promoting complex
  • Organelle or cellular component: APCC

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Supramolecule #1000: Yeast anaphase promoting complex

SupramoleculeName: Yeast anaphase promoting complex / type: sample / ID: 1000 / Number unique components: 1

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Supramolecule #1: APCC

SupramoleculeName: APCC / type: organelle_or_cellular_component / ID: 1 / Name.synonym: APCC / Oligomeric state: Monomer / Recombinant expression: No
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast) / synonym: Bakers' yeast

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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

VitrificationCryogen name: NITROGEN / Instrument: OTHER

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Electron microscopy

MicroscopeFEI/PHILIPS CM200FEG
Electron beamAcceleration voltage: 160 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELDBright-field microscopy
Sample stageSpecimen holder: Eucentric / Specimen holder model: GATAN LIQUID NITROGEN
Image recordingDigitization - Sampling interval: 1.8 µm

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Image processing

Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 25.0 Å

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