Control of DNA Replication Initiation by Ubiquitin

Eukaryotic cells divide by accomplishing a program of events in which the replication of the genome is a fundamental part. To ensure all cells have an accurate copy of the genome, DNA replication occurs only once per cell cycle and is controlled by numerous pathways. A key step in this process is th...

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Main Authors: Esperanza Hernández-Carralero, Elisa Cabrera, Ignacio Alonso-de Vega, Santiago Hernández-Pérez, Veronique A. J. Smits, Raimundo Freire
Format: Article
Language:English
Published: MDPI AG 2018-09-01
Series:Cells
Subjects:
Online Access:http://www.mdpi.com/2073-4409/7/10/146
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author Esperanza Hernández-Carralero
Elisa Cabrera
Ignacio Alonso-de Vega
Santiago Hernández-Pérez
Veronique A. J. Smits
Raimundo Freire
author_facet Esperanza Hernández-Carralero
Elisa Cabrera
Ignacio Alonso-de Vega
Santiago Hernández-Pérez
Veronique A. J. Smits
Raimundo Freire
author_sort Esperanza Hernández-Carralero
collection DOAJ
description Eukaryotic cells divide by accomplishing a program of events in which the replication of the genome is a fundamental part. To ensure all cells have an accurate copy of the genome, DNA replication occurs only once per cell cycle and is controlled by numerous pathways. A key step in this process is the initiation of DNA replication in which certain regions of DNA are marked as competent to replicate. Moreover, initiation of DNA replication needs to be coordinated with other cell cycle processes. At the molecular level, initiation of DNA replication relies, among other mechanisms, upon post-translational modifications, including the conjugation and hydrolysis of ubiquitin. An example is the precise control of the levels of the DNA replication initiation protein Cdt1 and its inhibitor Geminin by ubiquitin-mediated proteasomal degradation. This control ensures that DNA replication occurs with the right timing during the cell cycle, thereby avoiding re-replication events. Here, we review the events that involve ubiquitin signalling during DNA replication initiation, and how they are linked to human disease.
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spelling doaj.art-244f89b056234a95949c4fb57b81d8352023-09-02T21:57:09ZengMDPI AGCells2073-44092018-09-0171014610.3390/cells7100146cells7100146Control of DNA Replication Initiation by UbiquitinEsperanza Hernández-Carralero0Elisa Cabrera1Ignacio Alonso-de Vega2Santiago Hernández-Pérez3Veronique A. J. Smits4Raimundo Freire5Unidad de Investigación, Hospital Universitario de Canarias, Instituto de Tecnologías Biomédicas, Ofra s/n, 38320 La Laguna, Tenerife, SpainUnidad de Investigación, Hospital Universitario de Canarias, Instituto de Tecnologías Biomédicas, Ofra s/n, 38320 La Laguna, Tenerife, SpainUnidad de Investigación, Hospital Universitario de Canarias, Instituto de Tecnologías Biomédicas, Ofra s/n, 38320 La Laguna, Tenerife, SpainUnidad de Investigación, Hospital Universitario de Canarias, Instituto de Tecnologías Biomédicas, Ofra s/n, 38320 La Laguna, Tenerife, SpainUnidad de Investigación, Hospital Universitario de Canarias, Instituto de Tecnologías Biomédicas, Ofra s/n, 38320 La Laguna, Tenerife, SpainUnidad de Investigación, Hospital Universitario de Canarias, Instituto de Tecnologías Biomédicas, Ofra s/n, 38320 La Laguna, Tenerife, SpainEukaryotic cells divide by accomplishing a program of events in which the replication of the genome is a fundamental part. To ensure all cells have an accurate copy of the genome, DNA replication occurs only once per cell cycle and is controlled by numerous pathways. A key step in this process is the initiation of DNA replication in which certain regions of DNA are marked as competent to replicate. Moreover, initiation of DNA replication needs to be coordinated with other cell cycle processes. At the molecular level, initiation of DNA replication relies, among other mechanisms, upon post-translational modifications, including the conjugation and hydrolysis of ubiquitin. An example is the precise control of the levels of the DNA replication initiation protein Cdt1 and its inhibitor Geminin by ubiquitin-mediated proteasomal degradation. This control ensures that DNA replication occurs with the right timing during the cell cycle, thereby avoiding re-replication events. Here, we review the events that involve ubiquitin signalling during DNA replication initiation, and how they are linked to human disease.http://www.mdpi.com/2073-4409/7/10/146ubiquitinDNA replication Initiationubiquitin ligasesubiquitin hydrolasesproteasome
spellingShingle Esperanza Hernández-Carralero
Elisa Cabrera
Ignacio Alonso-de Vega
Santiago Hernández-Pérez
Veronique A. J. Smits
Raimundo Freire
Control of DNA Replication Initiation by Ubiquitin
Cells
ubiquitin
DNA replication Initiation
ubiquitin ligases
ubiquitin hydrolases
proteasome
title Control of DNA Replication Initiation by Ubiquitin
title_full Control of DNA Replication Initiation by Ubiquitin
title_fullStr Control of DNA Replication Initiation by Ubiquitin
title_full_unstemmed Control of DNA Replication Initiation by Ubiquitin
title_short Control of DNA Replication Initiation by Ubiquitin
title_sort control of dna replication initiation by ubiquitin
topic ubiquitin
DNA replication Initiation
ubiquitin ligases
ubiquitin hydrolases
proteasome
url http://www.mdpi.com/2073-4409/7/10/146
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