- EMDB-10516: Cryo-EM structure of the Anaphase-promoting complex/Cyclosome, in... -
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Basic information
Entry
Database: EMDB / ID: EMD-10516
Title
Cryo-EM structure of the Anaphase-promoting complex/Cyclosome, in complex with the Mitotic checkpoint complex (APC/C-MCC) at 3.8 angstrom resolution
Map data
Overall map
Sample
Complex: Anaphase-promoting complex/Cyclosome, in complex with the Mitotic checkpoint complex (APC/C-MCC)
Protein or peptide: x 18 types
Function / homology
Function and homology information
metaphase/anaphase transition of cell cycle / mitotic spindle assembly checkpoint MAD1-MAD2 complex / metaphase/anaphase transition of meiosis I / Inhibition of the proteolytic activity of APC/C required for the onset of anaphase by mitotic spindle checkpoint components / mitotic checkpoint complex / positive regulation of anaphase-promoting complex-dependent catabolic process / positive regulation of mitotic cell cycle spindle assembly checkpoint / establishment of centrosome localization / regulation of meiotic nuclear division / meiotic sister chromatid cohesion, centromeric ...metaphase/anaphase transition of cell cycle / mitotic spindle assembly checkpoint MAD1-MAD2 complex / metaphase/anaphase transition of meiosis I / Inhibition of the proteolytic activity of APC/C required for the onset of anaphase by mitotic spindle checkpoint components / mitotic checkpoint complex / positive regulation of anaphase-promoting complex-dependent catabolic process / positive regulation of mitotic cell cycle spindle assembly checkpoint / establishment of centrosome localization / regulation of meiotic nuclear division / meiotic sister chromatid cohesion, centromeric / Conversion from APC/C:Cdc20 to APC/C:Cdh1 in late anaphase / regulation of mitotic cell cycle spindle assembly checkpoint / positive regulation of synapse maturation / Inactivation of APC/C via direct inhibition of the APC/C complex / APC/C:Cdc20 mediated degradation of mitotic proteins / Phosphorylation of Emi1 / anaphase-promoting complex / Aberrant regulation of mitotic exit in cancer due to RB1 defects / regulation of meiotic cell cycle / metaphase/anaphase transition of mitotic cell cycle / anaphase-promoting complex-dependent catabolic process / positive regulation of synaptic plasticity / regulation of exit from mitosis / anaphase-promoting complex binding / nuclear pore nuclear basket / outer kinetochore / Phosphorylation of the APC/C / protein localization to chromosome, centromeric region / positive regulation of mitotic metaphase/anaphase transition / positive regulation of ubiquitin protein ligase activity / ubiquitin ligase activator activity / protein K11-linked ubiquitination / enzyme-substrate adaptor activity / positive regulation of dendrite morphogenesis / regulation of mitotic metaphase/anaphase transition / ubiquitin-ubiquitin ligase activity / mitotic sister chromatid cohesion / negative regulation of ubiquitin protein ligase activity / mitotic metaphase chromosome alignment / mitotic spindle assembly checkpoint signaling / establishment of mitotic spindle orientation / mitotic sister chromatid segregation / cullin family protein binding / Regulation of APC/C activators between G1/S and early anaphase / negative regulation of mitotic cell cycle / Transcriptional Regulation by VENTX / ubiquitin-like ligase-substrate adaptor activity / mitotic spindle assembly / positive regulation of axon extension / protein K48-linked ubiquitination / heterochromatin / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Resolution of Sister Chromatid Cohesion / regulation of mitotic cell cycle / APC/C:Cdc20 mediated degradation of Cyclin B / APC-Cdc20 mediated degradation of Nek2A / nuclear periphery / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / SCF-beta-TrCP mediated degradation of Emi1 / Assembly of the pre-replicative complex / RHO GTPases Activate Formins / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / brain development / negative regulation of protein catabolic process / CDK-mediated phosphorylation and removal of Cdc6 / mitotic spindle / kinetochore / spindle pole / spindle / Separation of Sister Chromatids / ubiquitin-protein transferase activity / microtubule cytoskeleton / ubiquitin protein ligase activity / Antigen processing: Ubiquitination & Proteasome degradation / mitotic cell cycle / nervous system development / Senescence-Associated Secretory Phenotype (SASP) / ubiquitin-dependent protein catabolic process / protein phosphatase binding / molecular adaptor activity / cell differentiation / non-specific serine/threonine protein kinase / protein kinase activity / Ub-specific processing proteases / protein ubiquitination / cell division / negative regulation of gene expression / protein serine kinase activity / protein serine/threonine kinase activity / centrosome / ubiquitin protein ligase binding / nucleolus / negative regulation of apoptotic process / apoptotic process / perinuclear region of cytoplasm / protein homodimerization activity Similarity search - Function
Journal: EMBO Rep / Year: 2020 Title: A unique binding mode of Nek2A to the APC/C allows its ubiquitination during prometaphase. Authors: Claudio Alfieri / Thomas Tischer / David Barford / Abstract: The anaphase-promoting complex (APC/C) is the key E3 ubiquitin ligase which directs mitotic progression and exit by catalysing the sequential ubiquitination of specific substrates. The activity of ...The anaphase-promoting complex (APC/C) is the key E3 ubiquitin ligase which directs mitotic progression and exit by catalysing the sequential ubiquitination of specific substrates. The activity of the APC/C in mitosis is restrained by the spindle assembly checkpoint (SAC), which coordinates chromosome segregation with the assembly of the mitotic spindle. The SAC effector is the mitotic checkpoint complex (MCC), which binds and inhibits the APC/C. It is incompletely understood how the APC/C switches substrate specificity in a cell cycle-specific manner. For instance, it is unclear how in prometaphase, when APC/C activity towards cyclin B and securin is repressed by the MCC, the kinase Nek2A is ubiquitinated. Here, we combine biochemical and structural analysis with functional studies in cells to show that Nek2A is a conformational-specific binder of the APC/C-MCC complex (APC/C ) and that, in contrast to cyclin A, Nek2A can be ubiquitinated efficiently by the APC/C in conjunction with both the E2 enzymes UbcH10 and UbcH5. We propose that these special features of Nek2A allow its prometaphase-specific ubiquitination.
History
Deposition
Dec 2, 2019
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Header (metadata) release
Feb 5, 2020
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Map release
Feb 19, 2020
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Update
Dec 2, 2020
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Current status
Dec 2, 2020
Processing site: PDBe / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
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