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- PDB-9fh9: Structure of CyclinB1 N-terminus bound to the NCP -

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Entry
Database: PDB / ID: 9fh9
TitleStructure of CyclinB1 N-terminus bound to the NCP
Components
  • (DNA (145-MER)) x 2
  • G2/mitotic-specific cyclin-B1
  • Histone H2A type 3
  • Histone H2B 1.1
  • Histone H3.1
  • Histone H4
KeywordsCELL CYCLE / Arginine anchor / NCP / Cyclin B1 / Complex
Function / homology
Function and homology information


response to DDT / cyclin B1-CDK1 complex / positive regulation of mitochondrial ATP synthesis coupled electron transport / regulation of chromosome condensation / Mitotic Prophase / E2F-enabled inhibition of pre-replication complex formation / G2/M DNA replication checkpoint / ventricular cardiac muscle cell development / Depolymerization of the Nuclear Lamina / MASTL Facilitates Mitotic Progression ...response to DDT / cyclin B1-CDK1 complex / positive regulation of mitochondrial ATP synthesis coupled electron transport / regulation of chromosome condensation / Mitotic Prophase / E2F-enabled inhibition of pre-replication complex formation / G2/M DNA replication checkpoint / ventricular cardiac muscle cell development / Depolymerization of the Nuclear Lamina / MASTL Facilitates Mitotic Progression / positive regulation of mRNA 3'-end processing / regulation of mitotic cell cycle spindle assembly checkpoint / positive regulation of attachment of spindle microtubules to kinetochore / Activation of NIMA Kinases NEK9, NEK6, NEK7 / patched binding / Phosphorylation of Emi1 / Transcriptional regulation by RUNX2 / tissue regeneration / Phosphorylation of the APC/C / Nuclear Pore Complex (NPC) Disassembly / outer kinetochore / Initiation of Nuclear Envelope (NE) Reformation / Polo-like kinase mediated events / cellular response to fatty acid / Golgi Cisternae Pericentriolar Stack Reorganization / cyclin-dependent protein serine/threonine kinase activator activity / Condensation of Prometaphase Chromosomes / nucleosome disassembly / digestive tract development / oocyte maturation / UV-damage excision repair / cyclin-dependent protein serine/threonine kinase regulator activity / mitotic metaphase chromosome alignment / Regulation of APC/C activators between G1/S and early anaphase / microtubule organizing center / ubiquitin-like protein ligase binding / positive regulation of G2/M transition of mitotic cell cycle / response to mechanical stimulus / Chk1/Chk2(Cds1) mediated inactivation of Cyclin B:Cdk1 complex / Regulation of MITF-M-dependent genes involved in cell cycle and proliferation / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Cyclin A/B1/B2 associated events during G2/M transition / positive regulation of cardiac muscle cell proliferation / Chromatin modifying enzymes / Nuclear events stimulated by ALK signaling in cancer / 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 / Deposition of new CENPA-containing nucleosomes at the centromere / APC/C:Cdc20 mediated degradation of Cyclin B / telomere organization / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / positive regulation of mitotic cell cycle / Interleukin-7 signaling / RNA Polymerase I Promoter Opening / epigenetic regulation of gene expression / Inhibition of DNA recombination at telomere / Assembly of the ORC complex at the origin of replication / TP53 Regulates Transcription of Genes Involved in G2 Cell Cycle Arrest / Meiotic synapsis / Resolution of Sister Chromatid Cohesion / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / mitotic spindle organization / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / HDACs deacetylate histones / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / Nonhomologous End-Joining (NHEJ) / RNA Polymerase I Promoter Escape / cellular response to iron(III) ion / Transcriptional regulation by small RNAs / G1/S transition of mitotic cell cycle / Formation of the beta-catenin:TCF transactivating complex / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / HDMs demethylate histones / G2/M DNA damage checkpoint / NoRC negatively regulates rRNA expression / B-WICH complex positively regulates rRNA expression / PKMTs methylate histone lysines / DNA Damage/Telomere Stress Induced Senescence / Pre-NOTCH Transcription and Translation / Meiotic recombination / G2/M transition of mitotic cell cycle / Metalloprotease DUBs / Activation of anterior HOX genes in hindbrain development during early embryogenesis / RMTs methylate histone arginines / Transcriptional regulation of granulopoiesis
Similarity search - Function
: / : / Cyclin, C-terminal domain / : / Cyclins signature. / Cyclin / Cyclin, C-terminal domain / Cyclin_C / Cyclin, N-terminal / Cyclin, N-terminal domain ...: / : / Cyclin, C-terminal domain / : / Cyclins signature. / Cyclin / Cyclin, C-terminal domain / Cyclin_C / Cyclin, N-terminal / Cyclin, N-terminal domain / Cyclin-like / domain present in cyclins, TFIIB and Retinoblastoma / Cyclin-like superfamily / : / Histone H2B signature. / Histone H2A conserved site / Histone H2A signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone 2A / Histone H2A / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / Histone H4, conserved site / Histone H4 signature. / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 domain / Histone-fold
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA (> 100) / Histone H2B 1.1 / G2/mitotic-specific cyclin-B1 / Histone H4 / Histone H3.1 / Histone H2A type 3
Similarity search - Component
Biological speciesHomo sapiens (human)
Xenopus laevis (African clawed frog)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.5 Å
AuthorsYoung, R.V.C. / Muhammad, R. / Alfieri, C.
Funding support United Kingdom, 2items
OrganizationGrant numberCountry
Wellcome Trust United Kingdom
The Institute of Cancer Research (ICR) United Kingdom
Citation
Journal: EMBO J / Year: 2024
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.
#1: Journal: Acta Crystallogr D Struct Biol / Year: 2018
Title: Real-space refinement in PHENIX for cryo-EM and crystallography.
Authors: Pavel V Afonine / Billy K Poon / Randy J Read / Oleg V Sobolev / Thomas C Terwilliger / Alexandre Urzhumtsev / Paul D Adams /
Abstract: This article describes the implementation of real-space refinement in the phenix.real_space_refine program from the PHENIX suite. The use of a simplified refinement target function enables very fast ...This article describes the implementation of real-space refinement in the phenix.real_space_refine program from the PHENIX suite. The use of a simplified refinement target function enables very fast calculation, which in turn makes it possible to identify optimal data-restraint weights as part of routine refinements with little runtime cost. Refinement of atomic models against low-resolution data benefits from the inclusion of as much additional information as is available. In addition to standard restraints on covalent geometry, phenix.real_space_refine makes use of extra information such as secondary-structure and rotamer-specific restraints, as well as restraints or constraints on internal molecular symmetry. The re-refinement of 385 cryo-EM-derived models available in the Protein Data Bank at resolutions of 6 Å or better shows significant improvement of the models and of the fit of these models to the target maps.
History
DepositionMay 27, 2024Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 24, 2024Provider: repository / Type: Initial release
Revision 1.1Aug 28, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID / _citation_author.name / _em_admin.last_update
Revision 1.2Oct 16, 2024Group: Data collection / Database references / Structure summary
Category: citation / citation_author ...citation / citation_author / em_admin / pdbx_entry_details
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
K: G2/mitotic-specific cyclin-B1
L: G2/mitotic-specific cyclin-B1
A: Histone H3.1
B: Histone H4
C: Histone H2A type 3
D: Histone H2B 1.1
E: Histone H3.1
F: Histone H4
G: Histone H2A type 3
H: Histone H2B 1.1
I: DNA (145-MER)
J: DNA (145-MER)


Theoretical massNumber of molelcules
Total (without water)204,84312
Polymers204,84312
Non-polymers00
Water905
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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Protein , 4 types, 8 molecules AEBFCGDH

#2: Protein Histone H3.1 / Histone H3/a / Histone H3/b / Histone H3/c / Histone H3/d / Histone H3/f / Histone H3/h / Histone ...Histone H3/a / Histone H3/b / Histone H3/c / Histone H3/d / Histone H3/f / Histone H3/h / Histone H3/i / Histone H3/j / Histone H3/k / Histone H3/l


Mass: 15437.167 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
Gene: HIST1H3A, H3FA, HIST1H3B, H3FL, HIST1H3C, H3FC, HIST1H3D, H3FB, HIST1H3E, H3FD, HIST1H3F, H3FI, HIST1H3G, H3FH, HIST1H3H, H3FK, HIST1H3I, H3FF, HIST1H3J, H3FJ
Production host: Escherichia coli (E. coli) / References: UniProt: P68431
#3: Protein Histone H4


Mass: 11394.426 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
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: Escherichia coli (E. coli) / References: UniProt: P62805
#4: Protein Histone H2A type 3 / H2A-clustered histone 25


Mass: 14151.523 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: H2AC25, H2AW, HIST3H2A / Production host: Escherichia coli (E. coli) / References: UniProt: Q7L7L0
#5: Protein Histone H2B 1.1 / H2B1.1


Mass: 13655.948 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P02281

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DNA chain , 2 types, 2 molecules IJ

#6: DNA chain DNA (145-MER)


Mass: 45138.770 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli)
#7: DNA chain DNA (145-MER)


Mass: 45610.043 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli)

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Protein/peptide / Non-polymers , 2 types, 7 molecules KL

#1: Protein/peptide G2/mitotic-specific cyclin-B1


Mass: 2407.878 Da / Num. of mol.: 2 / Source method: obtained synthetically / Details: The first 21 amino acids of cyclin B1 / Source: (synth.) Homo sapiens (human) / References: UniProt: P14635
#8: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 5 / Source method: isolated from a natural source / Formula: H2O

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Details

Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Cyclin B1 NTD bound to the acidic path of the NCP / Type: COMPLEX / Entity ID: #1-#7 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.5
Buffer component
IDConc.NameFormulaBuffer-ID
120 mMHEPEsC8H18N2O4S1
250 mMSodium chlorideNaCl1
30.5 mMTCEPC9H15O6P1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK III / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K

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Electron microscopy imaging

MicroscopyModel: TFS GLACIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1600 nm / Nominal defocus min: 600 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 66184 / Symmetry type: POINT
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 61.72 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.005312654
ELECTRON MICROSCOPYf_angle_d0.628518332
ELECTRON MICROSCOPYf_chiral_restr0.03642088
ELECTRON MICROSCOPYf_plane_restr0.00491317
ELECTRON MICROSCOPYf_dihedral_angle_d31.37693745

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