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Title: Structure of an APC3–APC16 Complex: Insights into Assembly of the Anaphase-Promoting Complex/Cyclosome

Journal Article · · Journal of Molecular Biology
 [1];  [1];  [2];  [2];  [1];  [3];  [1];  [1];  [2];  [4]
  1. St. Jude Children's Research Hospital, Memphis, TN (United States). Dept. of Structural Biology
  2. Research Inst. of Molecular Pathology (IMP), Vienna (Austria). Vienna Biocenter (VBC)
  3. Howard Hughes Medical Inst., Memphis, TN (United States). St. Jude Children's Research Hospital
  4. St. Jude Children's Research Hospital, Memphis, TN (United States). Dept. of Structural Biology; Howard Hughes Medical Inst., Memphis, TN (United States). St. Jude Children's Research Hospital

The anaphase-promoting complex/cyclosome (APC/C) is a massive E3 ligase that controls mitosis by catalyzing ubiquitination of key cell cycle regulatory proteins. The APC/C assembly contains two subcomplexes: the “Platform” centers around a cullin-RING-like E3 ligase catalytic core; the “Arc Lamp” is a hub that mediates transient association with regulators and ubiquitination substrates. The Arc Lamp contains the small subunits APC16, CDC26, and APC13, and tetratricopeptide repeat (TPR) proteins (APC7, APC3, APC6, and APC8) that homodimerize and stack with quasi-2-fold symmetry. Within the APC/C complex, APC3 serves as center for regulation. APC3's TPR motifs recruit substrate-binding coactivators, CDC20 and CDH1, via their C-terminal conserved Ile-Arg (IR) tail sequences. Human APC3 also binds APC16 and APC7 and contains a > 200-residue loop that is heavily phosphorylated during mitosis, although the basis for APC3 interactions and whether loop phosphorylation is required for ubiquitination are unclear. Here, we map the basis for human APC3 assembly with APC16 and APC7, report crystal structures of APC3Δloop alone and in complex with the C-terminal domain of APC16, and test roles of APC3's loop and IR tail binding surfaces in APC/C-catalyzed ubiquitination. The structures show how one APC16 binds asymmetrically to the symmetric APC3 dimer and, together with biochemistry and prior data, explain how APC16 recruits APC7 to APC3, show how APC3's C-terminal domain is rearranged in the full APC/C assembly, and visualize residues in the IR tail binding cleft important for coactivator-dependent ubiquitination. Overall, the results provide insights into assembly, regulation, and interactions of TPR proteins and the APC/C.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-06CH11357; P41 GM103403; R37GM065930; P30CA021765
OSTI ID:
1177429
Alternate ID(s):
OSTI ID: 1367766
Journal Information:
Journal of Molecular Biology, Vol. 427, Issue 8; ISSN 0022-2836
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

References (80)

A 20s complex containing CDC27 and CDC16 catalyzes the mitosis-specific conjugation of ubiquitin to cyclin B journal April 1995
The cyclosome, a large complex containing cyclin-selective ubiquitin ligase activity, targets cyclins for destruction at the end of mitosis. journal February 1995
The anaphase-promoting complex: it's not just for mitosis any more journal September 2002
State of the APC/C: Organization, function, and structure journal January 2011
Cubism and the cell cycle: the many faces of the APC/C journal June 2011
Panta rhei: The APC/C at steady state journal April 2013
The anaphase promoting complex/cyclosome: a machine designed to destroy journal August 2006
Regulation of APC/C Activators in Mitosis and Meiosis journal November 2008
Meiotic control of the APC/C: similarities & differences from mitosis journal January 2011
Novel functions for the anaphase-promoting complex in neurobiology journal August 2011
D box and KEN box motifs in budding yeast Hsl1p are required for APC-mediated degradation and direct binding to Cdc20p and Cdh1p journal September 2001
The WD40 Propeller Domain of Cdh1 Functions as a Destruction Box Receptor for APC/C Substrates journal May 2005
Substrate binding on the APC/C occurs between the coactivator Cdh1 and the processivity factor Doc1 journal December 2010
Structures of APC/CCdh1 with substrates identify Cdh1 and Apc10 as the D-box co-receptor journal November 2010
Structure of the mitotic checkpoint complex journal March 2012
Structural analysis of human Cdc20 supports multisite degron recognition by APC/C journal October 2012
Insights into Degron Recognition by APC/C Coactivators from the Structure of an Acm1-Cdh1 Complex journal June 2013
Cdc16p, Cdc23p and Cdc27p form a complex essential for mitosis. journal September 1994
Localization of the Coactivator Cdh1 and the Cullin Subunit Apc2 in a Cryo-Electron Microscopy Model of Vertebrate APC/C journal December 2005
Structure of the Anaphase-Promoting Complex/Cyclosome Interacting with a Mitotic Checkpoint Complex journal March 2009
APC15 mediates CDC20 autoubiquitylation by APC/CMCC and disassembly of the mitotic checkpoint complex journal September 2012
Structural basis for the subunit assembly of the anaphase-promoting complex journal February 2011
Molecular architecture and mechanism of the anaphase-promoting complex journal July 2014
Structural Organization of the Anaphase-Promoting Complex Bound to the Mitotic Activator Slp1 journal December 2007
An architectural map of the anaphase-promoting complex journal February 2006
TPR Subunits of the Anaphase-Promoting Complex Mediate Binding to the Activator Protein CDH1 journal September 2003
Identification of a novel ubiquitin-conjugating enzyme involved in mitotic cyclin degradation journal April 1996
Mass Spectrometric Analysis of the Anaphase-Promoting Complex from Yeast: Identification of a Subunit Related to Cullins journal February 1998
Structural and Functional Discussion of the Tetra-Trico-Peptide Repeat, a Protein Interaction Module journal March 2012
The Four Canonical TPR Subunits of Human APC/C Form Related Homo-Dimeric Structures and Stack in Parallel to Form a TPR Suprahelix journal November 2013
The CDC26 gene of Saccharomyces cerevisiae is required for cell growth only at high temperature journal January 1992
Identification of Subunits of the Anaphase-Promoting Complex of Saccharomyces cerevisiae journal November 1996
GENETIC CONTROL OF THE CELL DIVISION CYCLE IN YEAST: V. GENETIC ANALYSIS OF cdc MUTANTS journal June 1973
APC16 is a conserved subunit of the anaphase-promoting complex/cyclosome journal May 2010
emb-1 Encodes the APC16 Subunit of the Caenorhabditis elegans Anaphase-Promoting Complex journal October 2011
Phenotypic profiling of the human genome by time-lapse microscopy reveals cell division genes journal April 2010
Systematic Analysis of Human Protein Complexes Identifies Chromosome Segregation Proteins journal April 2010
Analysis of Activator-Binding Sites on the APC/C Supports a Cooperative Substrate-Binding Mechanism journal April 2009
Crystal structure of the APC10/DOC1 subunit of the human anaphase-promoting complex journal September 2001
Insights into anaphase promoting complex TPR subdomain assembly from a CDC26–APC6 structure journal August 2009
The APC/C subunit Cdc16/Cut9 is a contiguous tetratricopeptide repeat superhelix with a homo-dimer interface similar to Cdc27 journal October 2010
Molecular Structure of the N-terminal Domain of the APC/C Subunit Cdc27 Reveals a Homo-dimeric Tetratricopeptide Repeat Architecture journal April 2010
Scalable web services for the PSIPRED Protein Analysis Workbench journal June 2013
Electron microscopy structure of human APC/CCDH1–EMI1 reveals multimodal mechanism of E3 ligase shutdown journal May 2013
Recombinant expression, reconstitution and structure of human anaphase-promoting complex (APC/C) journal December 2012
Mechanism of Polyubiquitination by Human Anaphase-Promoting Complex: RING Repurposing for Ubiquitin Chain Assembly journal October 2014
Sequential E2s Drive Polyubiquitin Chain Assembly on APC Targets journal July 2007
E2-C, a cyclin-selective ubiquitin carrier protein required for the destruction of mitotic cyclins. journal April 1996
APC/C-mediated multiple monoubiquitylation provides an alternative degradation signal for cyclin B1 journal January 2012
Identification of a physiological E2 module for the human anaphase-promoting complex journal October 2009
UBE2S elongates ubiquitin chains on APC/C substrates to promote mitotic exit journal October 2009
UBE2S drives elongation of K11-linked ubiquitin chains by the Anaphase-Promoting Complex journal January 2010
Mitotic regulation of the human anaphase-promoting complex by phosphorylation journal December 2003
Systematic Phosphorylation Analysis of Human Mitotic Protein Complexes journal November 2011
Phosphorylation of the Cyclosome Is Required for Its Stimulation by Fizzy/cdc20 journal June 1999
Reversible phosphorylation controls the activity of cyclosome-associated cyclin-ubiquitin ligase. journal September 1995
Triggering of cyclin degradation in interphase extracts of amphibian eggs by cdc2 kinase journal July 1990
Xe-p9, a Xenopus Suc1/Cks protein, is essential for the Cdc2-dependent phosphorylation of the anaphase- promoting complex at mitosis journal August 1998
Electrostatic Interactions of Hsp-organizing Protein Tetratricopeptide Domains with Hsp70 and Hsp90 journal September 2009
Dali server: conservation mapping in 3D journal May 2010
Structure of TPR Domain–Peptide Complexes journal April 2000
UCSF Chimera?A visualization system for exploratory research and analysis journal January 2004
Features and development of Coot journal March 2010
Coot model-building tools for molecular graphics journal November 2004
Solution Structure of the E.coli TolA C-terminal Domain Reveals Conformational Changes upon Binding to the Phage g3p N-terminal Domain journal March 2005
Two WXXF-based motifs in NECAPs define the specificity of accessory protein binding to AP-1 and AP-2 journal September 2004
Phosphorylation by Cdc28 Activates the Cdc20-Dependent Activity of the Anaphase-Promoting Complex journal June 2000
Ubistatins Inhibit Proteasome-Dependent Degradation by Binding the Ubiquitin Chain journal October 2004
Pharmacologic Inhibition of the Anaphase-Promoting Complex Induces A Spindle Checkpoint-Dependent Mitotic Arrest in the Absence of Spindle Damage journal October 2010
An APC/C inhibitor stabilizes cyclin B1 by prematurely terminating ubiquitination journal February 2012
Synergistic blockade of mitotic exit by two chemical inhibitors of the APC/C journal August 2014
Production of selenomethionyl-derivatized proteins in baculovirus-infected insect cells journal September 2007
Phaser crystallographic software journal July 2007
Refinement of Macromolecular Structures by the Maximum-Likelihood Method journal May 1997
Overview of the CCP 4 suite and current developments journal March 2011
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
TPRpred: a tool for prediction of TPR-, PPR- and SEL1-like repeats from protein sequences journal January 2007
Searching protein structure databases with DaliLite v.3 journal September 2008
I-TASSER: a unified platform for automated protein structure and function prediction journal March 2010
Protein structure prediction on the Web: a case study using the Phyre server journal February 2009

Cited By (12)

SUMO targets the APC/C to regulate transition from metaphase to anaphase journal March 2018
Mechanism of APC/C CDC20 activation by mitotic phosphorylation journal April 2016
Insights into APC/C: from cellular function to diseases and therapeutics journal March 2016
Visualizing the complex functions and mechanisms of the anaphase promoting complex/cyclosome (APC/C) journal November 2017
biGBac enables rapid gene assembly for the expression of large multisubunit protein complexes journal April 2016
Plasmodium APC3 mediates chromosome condensation and cytokinesis during atypical mitosis in male gametogenesis journal April 2018
Molecular mechanism of APC/C activation by mitotic phosphorylation journal April 2016
The anaphase‐promoting complex: A key mitotic regulator associated with somatic mutations occurring in cancer journal October 2019
RING E3 mechanism for ubiquitin ligation to a disordered substrate visualized for human anaphase-promoting complex journal March 2015
Mechanisms for the temporal regulation of substrate ubiquitination by the anaphase-promoting complex/cyclosome journal December 2019
Atomic-Resolution Structures of the APC/C Subunits Apc4 and the Apc5 N-Terminal Domain journal October 2015
The Anaphase-Promoting Complex (APC) ubiquitin ligase affects chemosensory behavior inC. elegans journal May 2016

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