Biological protomer from reconstruction of real space-subtracted images
Sample
Complex: Ctf19 complex
Protein or peptide: x 12 types
Keywords
Kinetochore / CELL CYCLE
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 / Mis6-Sim4 complex / meiotic sister chromatid segregation / establishment of meiotic sister chromatid cohesion / ascospore formation / attachment of spindle microtubules to kinetochore / CENP-A containing chromatin assembly / protein localization to chromosome, centromeric region ...negative regulation of meiotic DNA double-strand break formation involved in reciprocal meiotic recombination / COMA complex / maintenance of meiotic sister chromatid cohesion / Mis6-Sim4 complex / meiotic sister chromatid segregation / establishment of meiotic sister chromatid cohesion / ascospore formation / attachment of spindle microtubules to kinetochore / CENP-A containing chromatin assembly / protein localization to chromosome, centromeric region / kinetochore assembly / outer kinetochore / establishment of mitotic sister chromatid cohesion / protein localization to kinetochore / spindle pole body / 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
Journal: 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
Deposition
Feb 3, 2019
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Header (metadata) release
Mar 27, 2019
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Map release
Apr 3, 2019
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Update
Mar 20, 2024
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Current status
Mar 20, 2024
Processing site: RCSB / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
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