DNA Replication News and Research

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DNA replication, the basis for biological inheritance, is a fundamental process occurring in all living organisms to copy their DNA. This process is "semiconservative" in that each strand of the original double-stranded DNA molecule serves as template for the reproduction of the complementary strand. Hence, following DNA replication, two identical DNA molecules have been produced from a single double-stranded DNA molecule. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.

Unraveling the Link Between Chromosomal Instability and Cancer Spread

Chromosomal instability is a phenomenon marked by rapid alterations in the count and configuration of chromosomes during cell division. This occurrence is prevalent in solid tumors and is closely associated with the aggressive dissemination of cancer, known as metastasis.

27 Sep 2023

New Insights into MCM8/9 Enzyme Could Lead to Treatments for Infertility and Cancer

Scientific research requires patience. The rewards are not always immediate, and the technology needed does not always exist. Michael A. Trakselis, Ph.D., professor and director of graduate affairs for the Department of Chemistry and Biochemistry at Baylor University, understands this.

30 Aug 2023

Study Reports High-Resolution Structures of CAF-1

Since the passage of the DNA replication fork destroys nucleosomes on the DNA, chromatin inheritance during cell division requires the replication of DNA and the assembling of nucleosomes onto the duplicated DNA.

28 Aug 2023

Study Shows How Genomic Topography Influences Where Cancer Mutations Arise

Researchers at the University of California San Diego have uncovered a connection between the topography of the human genome and the presence of mutations in human cancer. They found that certain regions of the genome, which exhibit unique features, act as hotspots for the accumulation of mutations.

25 Aug 2023

Dietary Fiber Regulates Gut Microbiota and Improves Epithelial Cell Proliferation

A high-fiber diet is known to have several health benefits. Scientific studies point to protection against such diseases as cancer and diabetes.

25 Jul 2023

New View of Euchromatin in the Cell Analyzed

In their study performed, the research group discusses their novel view of euchromatin present in the cell and displays how the disclosed organization is appropriate to genome functions.

28 Jun 2023

Study Provides Evidence for Involvement of p53/p16/RB-E2F-DREAM Repressional Targets in Cellular Senescence

A new research paper was published in Aging (listed by MEDLINE/PubMed as "Aging (Albany NY)" and "Aging-US" by Web of Science) Volume 15, Issue 10, entitled, "Key elements of cellular senescence involve transcriptional repression of mitotic and DNA repair genes through the p53-p16/RB-E2F-DREAM complex."

14 Jun 2023

Understanding Potential Mechanisms Underlying Genetic Variation in Older Trees

Older, long-lived trees are thought to contribute more to the creation and maintenance of genetic mutations than short-lived trees, according to research on the link between the growth rate of tropical trees and the frequency of genetic mutations they collect.

7 Jun 2023

New Mechanism Controlling Cellular Proliferation in Response to Serum Revealed

Researchers of the Genome Dynamics Project team at Tokyo Metropolitan Institute of Medical Science revealed new mechanism controlling cellular proliferation in response to serum, which triggers growth of resting cells.

13 Apr 2023

How specialized plant “train tracks” can be used to feed the expanding population

A new study will examine the possibility that specialized plant “train tracks” that transport chemicals within cells could help in feeding the world’s expanding population.

From The University of Warwick 23 Mar 2023

Neural-network-based image recognition models for examining SCC defects

Scientists from Tokyo Metropolitan University have used machine learning to automate the identification of defects in sister chromatid cohesion. They trained a convolutional neural network (CNN) with microscopy images of individual stained chromosomes, identified by researchers as having or not having cohesion defects. After training, it was able to successfully classify 73.1% of new images. Automation promises better statistics, and more insight into the wide range of disorders which cause cohesion defects.

14 Mar 2023

New hexameric structure of the protein triggering antibiotic resistance discovered

All living organisms require DNA replication to ensure the genetic integrity of the following generation. On the other hand, bacteria have the ability to horizontally transfer genetic information to other bacteria.

6 Feb 2023

Proteins’ movement and the spread of antibiotic resistance

Umeå University researchers have figured out how a particular type of protein travels during DNA replication. The discovery could affect the current understanding of how bacteria propagate antibiotic resistance genes.

30 Jan 2023

Figuring out how cells safeguard their genomes during replication

Cells zealously protect the integrity of their genomes, because damage can lead to cancer or cell death. The genome, a cell’s complete set of DNA, is most vulnerable while it is being duplicated before a cell divides.

26 Jan 2023

New insights into cell health and disease

Scientists from Weill Cornell Medicine have discovered a protein that not only prepares DNA for replication but also controls the replication process. The research, which was published on January 5th, 2023, in the journal Molecular Cell, resolves a puzzle that has long-baffled biologists.

26 Jan 2023

Effective anticancer strategy for selective killing of cancer cells

A study team headed by Dr Yuanliang Zhai from The University of Hong Kong’s (HKU) School of Biological Sciences and his associates from The Hong Kong University of Science and Technology (HKUST) and Institut Curie in France discovered a new mechanism of the human MCM2-7 complex in controlling replication initiation, which can be employed as a unique and effective anticancer method with the potential for selective death of cancer cells.

11 Jan 2023

Researchers gain insights into how density may change gene expression in some insects

A grasshopper hatched in a crowded environment may look and behave differently than a grasshopper hatched in isolation -; even if they have the same genes.

14 Dec 2022

Revealing the unappreciated role of POLQ in responding to DNA replication stress

Researchers at the Francis Crick Institute, in partnership with Artios, have discovered how an enzyme involved in DNA repair (POLQ) becomes critical to the survival of some tumors when the cancer cells lose the ability to employ a more frequent way of DNA repair.

1 Dec 2022

Revealing the functional significance of DDX41 in great detail

The DDX41 gene encodes the nuclear enzyme DEAD-box-type RNA helicase. Hematopoietic malignancies are caused by DDX41 mutations. However, the mechanism behind the development of this malignancy remains unknown.

21 Nov 2022

Enzymes hold the answer to understanding how DNA mutates

According to recent research from the University of Surrey, enzymes, which are essential for regulating how cells replicate in the human body, could be the very component that encourages DNA to spontaneously mutate, leading to potentially permanent genetic errors.

From University of Surrey 17 Nov 2022