+
Open data
-
Basic information
Entry | Database: PDB / ID: 9fgq | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Structure of human APC3loop 375-381 bound to the NCP | |||||||||
![]() |
| |||||||||
![]() | CELL CYCLE / Arginine anchor / NCP / APC3 / Complex | |||||||||
Function / homology | ![]() 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 / protein branched polyubiquitination / metaphase/anaphase transition of mitotic cell cycle / regulation of meiotic cell cycle / anaphase-promoting complex-dependent catabolic process / Phosphorylation of the APC/C ...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 / protein branched polyubiquitination / metaphase/anaphase transition of mitotic cell cycle / regulation of meiotic cell cycle / anaphase-promoting complex-dependent catabolic process / Phosphorylation of the APC/C / protein K11-linked ubiquitination / Regulation of APC/C activators between G1/S and early anaphase / Transcriptional Regulation by VENTX / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / protein K48-linked ubiquitination / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Deposition of new CENPA-containing nucleosomes at the centromere / telomere organization / Inhibition of DNA recombination at telomere / Meiotic synapsis / Interleukin-7 signaling / RNA Polymerase I Promoter Opening / APC/C:Cdc20 mediated degradation of Cyclin B / APC-Cdc20 mediated degradation of Nek2A / Assembly of the ORC complex at the origin of replication / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / SUMOylation of chromatin organization proteins / regulation of mitotic cell cycle / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / SIRT1 negatively regulates rRNA expression / epigenetic regulation of gene expression / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / HDACs deacetylate histones / Nonhomologous End-Joining (NHEJ) / RNA Polymerase I Promoter Escape / Assembly of the pre-replicative complex / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / G2/M DNA damage checkpoint / HDMs demethylate histones / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / NoRC negatively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / Meiotic recombination / Pre-NOTCH Transcription and Translation / CDK-mediated phosphorylation and removal of Cdc6 / spindle / Metalloprotease DUBs / RMTs methylate histone arginines / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / HCMV Early Events / neuron projection development / mitotic spindle / structural constituent of chromatin / Separation of Sister Chromatids / UCH proteinases / nucleosome / Antigen processing: Ubiquitination & Proteasome degradation / heterochromatin formation / E3 ubiquitin ligases ubiquitinate target proteins / nucleosome assembly / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / chromatin organization / HATs acetylate histones / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Factors involved in megakaryocyte development and platelet production / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / Processing of DNA double-strand break ends / Senescence-Associated Secretory Phenotype (SASP) / protein phosphatase binding / Oxidative Stress Induced Senescence / gene expression / Estrogen-dependent gene expression / chromosome, telomeric region / Ub-specific processing proteases / protein ubiquitination / cadherin binding Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.5 Å | |||||||||
![]() | Young, R.V.C. / Muhammad, R. / Alfieri, C. | |||||||||
Funding support | ![]()
| |||||||||
![]() | ![]() Title: Spatial control of the APC/C ensures the rapid degradation of cyclin B1. Authors: Luca Cirillo / Rose Young / Sapthaswaran Veerapathiran / Annalisa Roberti / Molly Martin / Azzah Abubacar / Camilla Perosa / Catherine Coates / Reyhan Muhammad / Theodoros I Roumeliotis / ...Authors: Luca Cirillo / Rose Young / Sapthaswaran Veerapathiran / Annalisa Roberti / Molly Martin / Azzah Abubacar / Camilla Perosa / Catherine Coates / Reyhan Muhammad / Theodoros I Roumeliotis / Jyoti S Choudhary / Claudio Alfieri / Jonathon Pines / ![]() Abstract: The proper control of mitosis depends on the ubiquitin-mediated degradation of the right mitotic regulator at the right time. This is effected by the Anaphase Promoting Complex/Cyclosome (APC/C) ...The proper control of mitosis depends on the ubiquitin-mediated degradation of the right mitotic regulator at the right time. This is effected by the Anaphase Promoting Complex/Cyclosome (APC/C) ubiquitin ligase that is regulated by the Spindle Assembly Checkpoint (SAC). The SAC prevents the APC/C from recognising Cyclin B1, the essential anaphase and cytokinesis inhibitor, until all chromosomes are attached to the spindle. Once chromosomes are attached, Cyclin B1 is rapidly degraded to enable chromosome segregation and cytokinesis. We have a good understanding of how the SAC inhibits the APC/C, but relatively little is known about how the APC/C recognises Cyclin B1 as soon as the SAC is turned off. Here, by combining live-cell imaging, in vitro reconstitution biochemistry, and structural analysis by cryo-electron microscopy, we provide evidence that the rapid recognition of Cyclin B1 in metaphase requires spatial regulation of the APC/C. Using fluorescence cross-correlation spectroscopy, we find that Cyclin B1 and the APC/C primarily interact at the mitotic apparatus. We show that this is because Cyclin B1, like the APC/C, binds to nucleosomes, and identify an 'arginine-anchor' in the N-terminus as necessary and sufficient for binding to the nucleosome. Mutating the arginine anchor on Cyclin B1 reduces its interaction with the APC/C and delays its degradation: cells with the mutant, non-nucleosome-binding Cyclin B1 become aneuploid, demonstrating the physiological relevance of our findings. Together, our data demonstrate that mitotic chromosomes promote the efficient interaction between Cyclin B1 and the APC/C to ensure the timely degradation of Cyclin B1 and genomic stability. | |||||||||
History |
|
-
Structure visualization
Structure viewer | Molecule: ![]() ![]() |
---|
-
Downloads & links
-
Download
PDBx/mmCIF format | ![]() | 395.7 KB | Display | ![]() |
---|---|---|---|---|
PDB format | ![]() | 235.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
---|
-Related structure data
Related structure data | ![]() 50416MC ![]() 9fh9C M: map data used to model this data C: citing same article ( |
---|---|
Similar structure data | Similarity search - Function & homology ![]() |
-
Links
-
Assembly
Deposited unit | ![]()
|
---|---|
1 |
|
-
Components
-Protein , 5 types, 10 molecules KLAEBFCGDH
#1: Protein | Mass: 32788.488 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: This is a disorder loop of human APC3 residues 177-446 fused to a SpyTag via a 27 residue GSA linker. Source: (gene. exp.) ![]() ![]() #2: Protein | Mass: 15437.167 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: Human histone H3.1 / Source: (gene. exp.) ![]() Gene: HIST1H3A, H3FA, HIST1H3B, H3FL, HIST1H3C, H3FC, HIST1H3D, H3FB, HIST1H3E, H3FD, HIST1H3F, H3FI, HIST1H3G, H3FH, HIST1H3H, H3FK, HIST1H3I, H3FF, HIST1H3J, H3FJ Production host: ![]() ![]() #3: Protein | Mass: 11394.426 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: Human histone H4 / Source: (gene. exp.) ![]() Gene: HIST1H4A, H4/A, H4FA, HIST1H4B, H4/I, H4FI, HIST1H4C, H4/G, H4FG, HIST1H4D, H4/B, H4FB, HIST1H4E, H4/J, H4FJ, HIST1H4F, H4/C, H4FC, HIST1H4H, H4/H, H4FH, HIST1H4I, H4/M, H4FM, HIST1H4J, H4/E, ...Gene: HIST1H4A, H4/A, H4FA, HIST1H4B, H4/I, H4FI, HIST1H4C, H4/G, H4FG, HIST1H4D, H4/B, H4FB, HIST1H4E, H4/J, H4FJ, HIST1H4F, H4/C, H4FC, HIST1H4H, H4/H, H4FH, HIST1H4I, H4/M, H4FM, HIST1H4J, H4/E, H4FE, HIST1H4K, H4/D, H4FD, HIST1H4L, H4/K, H4FK, HIST2H4A, H4/N, H4F2, H4FN, HIST2H4, HIST2H4B, H4/O, H4FO, HIST4H4 Production host: ![]() ![]() #4: Protein | Mass: 14125.549 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: This is a H2A/H2B fusion protein with a SpyCatcher tag attached Source: (gene. exp.) ![]() Gene: H2AC18, H2AFO, HIST2H2AA, HIST2H2AA3, H2AC19, HIST2H2AA4 Plasmid: pET-14b / Production host: ![]() ![]() #5: Protein | Mass: 29445.771 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: This is a H2A/H2B fusion protein with a SpyCatcher tag attached,This is a H2A/H2B fusion protein with a SpyCatcher tag attached Source: (gene. exp.) ![]() ![]() ![]() |
---|
-DNA chain , 2 types, 2 molecules IJ
#6: DNA chain | Mass: 64911.336 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: The Widom 147 bp sequence with 32 nucleotides of DNA on either side Source: (gene. exp.) ![]() ![]() ![]() |
---|---|
#7: DNA chain | Mass: 65382.633 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Widom 147 DNA sequence flanked with 32 nucleotides on either side Source: (gene. exp.) ![]() ![]() ![]() |
-Non-polymers , 1 types, 75 molecules 
#8: Water | ChemComp-HOH / |
---|
-Details
Has protein modification | N |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
Component | Name: APC3 motif bound to the NCP acidic patch / Type: COMPLEX Details: Recombinant protein sample of residues 375-381 of APC3 Entity ID: #1-#3, #6-#7 / Source: RECOMBINANT | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Molecular weight |
| ||||||||||||||||||||
Source (natural) | Organism: ![]() | ||||||||||||||||||||
Source (recombinant) | Organism: ![]() ![]() | ||||||||||||||||||||
Buffer solution | pH: 8 / Details: 20 mM HEPEs pH8.0, 50 mM NaCl, 0.5 mM TCEP | ||||||||||||||||||||
Buffer component |
| ||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK III / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
-
Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: TFS KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1600 nm / Nominal defocus min: 600 nm / Cs: 2.7 mm |
Image recording | Electron dose: 62 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-
Processing
EM software |
| ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Particle selection | Num. of particles selected: 2698450 Details: Template base particel picking and Topaz trained particle picking | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 414277 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 50.81 Å2 | ||||||||||||||||||||||||
Refine LS restraints |
|