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- PDB-6nuw: Yeast Ctf19 complex -

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Basic information

Entry
Database: PDB / ID: 6nuw
TitleYeast Ctf19 complex
Components
  • (Inner kinetochore subunit ...) x 11
  • Unknown (unassigned)
KeywordsCELL CYCLE / Kinetochore
Function / homology
Function and homology information


negative regulation of meiotic DNA double-strand break formation involved in reciprocal meiotic recombination / COMA complex / maintenance of meiotic sister chromatid cohesion / meiotic sister chromatid segregation / Mis6-Sim4 complex / centromere complex assembly / establishment of meiotic sister chromatid cohesion / ascospore formation / attachment of spindle microtubules to kinetochore / CENP-A containing chromatin assembly ...negative regulation of meiotic DNA double-strand break formation involved in reciprocal meiotic recombination / COMA complex / maintenance of meiotic sister chromatid cohesion / meiotic sister chromatid segregation / Mis6-Sim4 complex / centromere complex assembly / establishment of meiotic sister chromatid cohesion / ascospore formation / attachment of spindle microtubules to kinetochore / CENP-A containing chromatin assembly / outer kinetochore / protein localization to chromosome, centromeric region / establishment of mitotic sister chromatid cohesion / kinetochore assembly / spindle pole body / protein localization to kinetochore / mitotic spindle assembly checkpoint signaling / DNA replication initiation / meiotic cell cycle / chromosome segregation / kinetochore / cell division / structural molecule activity / nucleus / cytoplasm
Similarity search - Function
Kinetochore subunit Nkp2/Cnl2 / Cnl2/NKP2 family protein / : / CENPU protein / Centromere protein O / Cenp-O kinetochore centromere component / Centromere protein Chl4/mis15/CENP-N / Kinetochore protein CHL4 like
Similarity search - Domain/homology
Inner kinetochore subunit IML3 / Inner kinetochore subunit AME1 / Inner kinetochore subunit CHL4 / Inner kinetochore subunit OKP1 / Inner kinetochore subunit CTF19 / Inner kinetochore subunit NKP2 / Inner kinetochore subunit MCM21 / Inner kinetochore subunit NKP1 / Inner kinetochore subunit CTF3
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
Saccharomyces cerevisiae S288c (yeast)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.25 Å
AuthorsHinshaw, S.M. / Harrison, S.C.
Funding support United States, 1items
OrganizationGrant numberCountry
Howard Hughes Medical Institute (HHMI) United States
CitationJournal: Elife / Year: 2019
Title: The structure of the Ctf19c/CCAN from budding yeast.
Authors: Stephen M Hinshaw / Stephen C Harrison /
Abstract: Eukaryotic kinetochores connect spindlemicrotubules to chromosomal centromeres. A group of proteins called the Ctf19 complex (Ctf19c) in yeast and the constitutive centromere associated network (CCAN) ...Eukaryotic kinetochores connect spindlemicrotubules to chromosomal centromeres. A group of proteins called the Ctf19 complex (Ctf19c) in yeast and the constitutive centromere associated network (CCAN) in other organisms creates the foundation of a kinetochore. The Ctf19c/CCAN influences the timing of kinetochore assembly, sets its location by associating with a specialized nucleosome containing the histone H3 variant Cse4/CENP-A, and determines the organization of the microtubule attachment apparatus. We present here the structure of a reconstituted 13-subunit Ctf19c determined by cryo-electron microscopy at ~4 Å resolution. The structure accounts for known and inferred contacts with the Cse4 nucleosome and for an observed assembly hierarchy. We describe its implications for establishment of kinetochores and for their regulation by kinases throughout the cell cycle.
History
DepositionFeb 3, 2019Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 3, 2019Provider: repository / Type: Initial release
Revision 1.1Nov 20, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.2Mar 20, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
B: Inner kinetochore subunit IML3
C: Inner kinetochore subunit MCM21
D: Inner kinetochore subunit CTF19
E: Inner kinetochore subunit CHL4
F: Inner kinetochore subunit OKP1
G: Inner kinetochore subunit NKP1
I: Inner kinetochore subunit AME1
H: Inner kinetochore subunit CTF3,Inner kinetochore subunit CTF3
J: Inner kinetochore subunit NKP2
Y: Inner kinetochore subunit CTF3,Inner kinetochore subunit CTF3
X: Inner kinetochore subunit Mcm22
M: Inner kinetochore subunit Mcm16
U: Unknown (unassigned)


Theoretical massNumber of molelcules
Total (without water)493,09313
Polymers493,09313
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: light scattering
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Inner kinetochore subunit ... , 11 types, 12 molecules BCDEFGIHYJXM

#1: Protein Inner kinetochore subunit IML3 / CENP-L homolog / Constitutive centromere-associated network protein IML3 / Increased minichromosome ...CENP-L homolog / Constitutive centromere-associated network protein IML3 / Increased minichromosome loss protein 3 / Minichromosome maintenance protein 19


Mass: 28365.484 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: IML3, MCM19, YBR107C, YBR0836 / Production host: Escherichia coli (E. coli) / References: UniProt: P38265
#2: Protein Inner kinetochore subunit MCM21 / CENP-O homolog / Chromosome transmission fidelity protein 5 / Constitutive centromere-associated ...CENP-O homolog / Chromosome transmission fidelity protein 5 / Constitutive centromere-associated network protein MCM21 / Minichromosome maintenance protein 21


Mass: 43301.133 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: MCM21, CTF5, YDR318W / Production host: Escherichia coli (E. coli) / References: UniProt: Q06675
#3: Protein Inner kinetochore subunit CTF19 / CENP-P homolog / Chromosome transmission fidelity protein 19 / Constitutive centromere-associated ...CENP-P homolog / Chromosome transmission fidelity protein 19 / Constitutive centromere-associated network protein CTF19 / Minichromosome maintenance protein 18


Mass: 42841.113 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: CTF19, MCM18, YPL018W, LPB13W / Production host: Escherichia coli (E. coli) / References: UniProt: Q02732
#4: Protein Inner kinetochore subunit CHL4 / CENP-N homolog / Chromosome loss protein 4 / Chromosome transmission fidelity protein 17 / ...CENP-N homolog / Chromosome loss protein 4 / Chromosome transmission fidelity protein 17 / Constitutive centromere-associated network protein CHL4 / Minichromosome maintenance protein 17


Mass: 53015.977 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: CHL4, CTF17, MCM17, YDR254W, YD9320A.04 / Production host: Escherichia coli (E. coli) / References: UniProt: P38907
#5: Protein Inner kinetochore subunit OKP1 / CENP-Q homolog / Constitutive centromere-associated network protein OKP1 / Outer kinetochore protein 1


Mass: 47427.246 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: OKP1, YGR179C / Production host: Escherichia coli (E. coli) / References: UniProt: P53298
#6: Protein Inner kinetochore subunit NKP1 / Constitutive centromere-associated network protein NKP1 / Non-essential kinetochore protein 1


Mass: 27278.709 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: NKP1, YDR383C / Production host: Escherichia coli (E. coli) / References: UniProt: Q12493
#7: Protein Inner kinetochore subunit AME1 / Associated with microtubules and essential protein 1 / CENP-U homolog / Constitutive centromere- ...Associated with microtubules and essential protein 1 / CENP-U homolog / Constitutive centromere-associated network protein AME1


Mass: 38335.594 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: AME1, ARP100, YBR211C, YBR1458 / Production host: Escherichia coli (E. coli) / References: UniProt: P38313
#8: Protein Inner kinetochore subunit CTF3,Inner kinetochore subunit CTF3 / CENP-I homolog / Chromosome loss protein 3 / Chromosome transmission fidelity protein 3 / ...CENP-I homolog / Chromosome loss protein 3 / Chromosome transmission fidelity protein 3 / Constitutive centromere-associated network protein CTF3


Mass: 87766.664 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast), (gene. exp.) Saccharomyces cerevisiae S288c (yeast)
Strain: ATCC 204508 / S288c / Gene: CTF3, CHL3, YLR381W / Production host: Escherichia coli (E. coli) / References: UniProt: Q12748
#9: Protein Inner kinetochore subunit NKP2 / Constitutive centromere-associated network protein NKP2 / Non-essential kinetochore protein 2


Mass: 17877.033 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: NKP2, YLR315W / Production host: Escherichia coli (E. coli) / References: UniProt: Q06162
#10: Protein Inner kinetochore subunit Mcm22


Mass: 10741.231 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae S288c (yeast) / Strain: ATCC 204508 / S288c / Production host: Escherichia coli (E. coli)
#11: Protein Inner kinetochore subunit Mcm16


Mass: 6400.881 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae S288c (yeast) / Strain: ATCC 204508 / S288c / Production host: Escherichia coli (E. coli)

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Protein/peptide , 1 types, 1 molecules U

#12: Protein/peptide Unknown (unassigned)


Mass: 1975.426 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae S288c (yeast) / Strain: ATCC 204508 / S288c / Production host: Escherichia coli (E. coli)

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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: Ctf19 complex / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 8.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: unspecified
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Tecnai Polara / Image courtesy: FEI Company
MicroscopyModel: FEI POLARA 300
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 47 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.13_2998: / Classification: refinement
EM software
IDNameVersionCategory
7Coot0.8.8model fitting
12RELION33D reconstruction
13PHENIX1.13model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 4.25 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 119469 / Symmetry type: POINT

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