Related Experiment Video

Updated: Dec 16, 2025

In Vitro SUMOylation Assay to Study SUMO E3 Ligase Activity
09:45

In Vitro SUMOylation Assay to Study SUMO E3 Ligase Activity

Published on: January 29, 2018

9.6K

The Role of Ubiquitination and SUMOylation in DNA Replication

Tarek Abbas1

  • 1Department of Radiation Oncology, University of Virginia, Charlottesville, VA, USA.

Current Issues in Molecular Biology
|July 2, 2020
PubMed

Insights

Ubiquitination and SUMOylation are key post-translational modifications regulating DNA replication in eukaryotes. Dysregulation of these processes leads to genomic instability and diseases like cancer.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cell Biology

Background:

  • DNA replication is essential for transmitting genetic material and maintaining genomic stability.
  • Post-translational modifications (PTMs) like ubiquitination and SUMOylation are crucial for regulating DNA replication.
  • Aberrant DNA replication contributes to diseases, including cancer.

Purpose of the Study:

  • To elucidate the impact of ubiquitination and SUMOylation on eukaryotic DNA replication.
  • To highlight the consequences of dysregulated ubiquitination and SUMOylation on cellular activities and genomic integrity.

Main Methods:

  • Review of existing literature on ubiquitination, SUMOylation, and DNA replication.
  • Analysis of the roles of specific ubiquitination and SUMOylation pathways in replication control.
  • Discussion of cellular responses to replication stress mediated by these modifications.

Main Results:

  • Ubiquitination and SUMOylation provide precise temporal and spatial control over DNA replication initiation, progression, and termination.
  • These modifications are vital for cellular responses to replication stress, maintaining genomic stability.
  • Disruption of ubiquitination and SUMOylation signaling pathways results in genomic instability and mutagenesis.

Conclusions:

  • Ubiquitination and SUMOylation are critical regulatory mechanisms for DNA replication in eukaryotes.
  • Understanding these pathways is essential for comprehending genomic instability and developing therapeutic strategies for related diseases.

More Related Videos

Localization of SUMO-modified Proteins Using Fluorescent Sumo-trapping Proteins06:23

Localization of SUMO-modified Proteins Using Fluorescent Sumo-trapping Proteins

Published on: April 27, 2019

8.8K
In Vitro Ubiquitination and Deubiquitination Assays of Nucleosomal Histones11:36

In Vitro Ubiquitination and Deubiquitination Assays of Nucleosomal Histones

Published on: July 25, 2019

11.2K

Related Concept Videos

DNA Replication02:40

DNA Replication

DNA replication involves the separation of the two strands of the double helix, with each strand serving as a template from which the new complementary strand is copied.  After replication, each double-stranded DNA includes one parental or “old” strand and one “new” strand. This is known as semiconservative replication. The resulting DNA molecules have the same sequence and are divided equally into the two daughter cells.
Replication in Prokaryotes
DNA replication...
57.4K
Replication in Eukaryotes02:31

Replication in Eukaryotes

Overview
200.9K
Replication in Eukaryotes01:29

Replication in Eukaryotes

In eukaryotic cells, DNA replication is highly conserved and tightly regulated. Multiple linear chromosomes must be duplicated with high fidelity before cell division, so there are many proteins that fulfill specialized roles in the replication process. Replication occurs in three phases: initiation, elongation, and termination, and ends with two complete sets of chromosomes in the nucleus.
Many Proteins Orchestrate Replication at the Origin
Eukaryotic replication follows many of the same...
16.7K
The DNA Replication Fork01:02

The DNA Replication Fork

An organism’s genome needs to be duplicated in an efficient and error-free manner for its growth and survival. The replication fork is a Y-shaped active region where two strands of DNA are separated and replicated continuously. The coupling of DNA unzipping and complementary strand synthesis is a characteristic feature of a replication fork.   Organisms with small circular DNA, such as E. coli, often have a single origin of replication; therefore, they have only two replication...
40.0K
The DNA Replication Fork01:02

The DNA Replication Fork

17.7K
S-Cdk Initiates DNA Replication02:38

S-Cdk Initiates DNA Replication

The cell cycle is a series of events leading to DNA duplication followed by the division of cell content to form two daughter cells. The cell cycle progresses in four stages—the cell increases in size (gap 1 or G1-phase), duplicates its DNA (synthesis or S-phase), prepares to divide (gap 2 or G2-phase), and divides (mitosis or M-phase).
Two states at the origin of replication
In eukaryotes, the initiation of replication occurs at many sites on the chromosomes, called the origins of...
5.2K