Projects per year
Abstract
Centromeres play several important roles in ensuring proper chromosome segregation. Not only do they promote kinetochore assembly for microtubule attachment, but they also support robust sister chromatid cohesion at pericentromeres and facilitate replication of centromeric DNA early in S phase. However, it is still elusive how centromeres orchestrate all these functions at the same site. Here, we show that the budding yeast Dbf4-dependent kinase (DDK) accumulates at kinetochores in telophase, facilitated by the Ctf19 kinetochore complex. This promptly recruits Sld3-Sld7 replication initiator proteins to pericentromeric replication origins so that they initiate replication early in S phase. Furthermore, DDK at kinetochores independently recruits the Scc2-Scc4 cohesin loader to centromeres in G1 phase. This enhances cohesin loading and facilitates robust pericentromeric cohesion in S phase. Thus, we have found the central mechanism by which kinetochores orchestrate early S phase DNA replication and robust sister chromatid cohesion at microtubule attachment sites.
Original language | English |
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Pages (from-to) | 661-674 |
Number of pages | 14 |
Journal | Molecular Cell |
Volume | 50 |
Issue number | 5 |
DOIs | |
Publication status | Published - 6 Jun 2013 |
Keywords
- YEAST GENOME
- SISTER CHROMATIDS
- S-PHASE
- CELL IMAGING REVEALS
- HETEROCHROMATIN
- ASSOCIATION
- EUKARYOTIC CELLS
- SACCHAROMYCES-CEREVISIAE
- CHROMOSOME-REPLICATION
- XENOPUS EGG EXTRACTS
ASJC Scopus subject areas
- Molecular Biology
- Cell Biology
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Dive into the research topics of 'Kinetochores coordinate pericentromeric cohesion and early DNA replication by Cdc7-Dbf4 kinase recruitment'. Together they form a unique fingerprint.Projects
- 4 Finished
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Strategic Award: Wellcome Trust Technology Platform
Blow, J. (Investigator), Lamond, A. (Investigator) & Owen-Hughes, T. (Investigator)
1/01/13 → 30/09/18
Project: Research
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Molecular Mechanisms Regulating the Kinetochore-Microtubule Interaction in Mitosis (Principal Research Fellowship)
Tanaka, T. (Investigator)
1/04/12 → 30/04/21
Project: Research
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Aref#d: 19114. Live-Cell Analysis of Chromosome Duplication in Space and Time
Blow, J. (Investigator) & Tanaka, T. (Investigator)
1/04/08 → 30/09/13
Project: Research