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.

Added benefit of daclatasvir drug not proven for chronic hepatitis C infection

The drug daclatasvir (trade name Daklinza) has been available since August 2014 for the treatment of adults with chronic hepatitis C (CHC) infection. The German Institute for Quality and Efficiency in Health Care examined in a dossier assessment whether this new drug offers an added benefit over the appropriate comparator therapy.

11 Dec 2014

MIT engineers create new computer model to design complex 3-D DNA shapes

MIT biological engineers have created a new computer model that allows them to design the most complex three-dimensional DNA shapes ever produced, including rings, bowls, and geometric structures such as icosahedrons that resemble viral particles.

3 Dec 2014

Tufts University study explores relationship between transcription, expansions of DNA repeats

Researchers in human genetics have known that long nucleotide repeats in DNA lead to instability of the genome and ultimately to human hereditary diseases such Freidreich's ataxia and Huntington's disease.

26 Nov 2014

Scientists map DNA replication process at the most fundamental level

The proteins that drive DNA replication—the force behind cellular growth and reproduction—are some of the most complex machines on Earth.

17 Oct 2014

SOFIE BIOSCIENCES awarded NCI Phase II SBIR contract to develop [18F]FAC PET

SOFIE BIOSCIENCES, a leader in the field of Positron Emission Tomography (PET) imaging, including probes, scanners, and chemistry systems, announced today that the National Cancer Institute has awarded the company a Phase II Small Business Innovation Research (SBIR) contract for approximately $1.5M over two years.

16 Oct 2014

Researchers reveal how alteration of single nucleotide could initiate fragile X syndrome

Researchers reveal how the alteration of a single nucleotide—the basic building block of DNA—could initiate fragile X syndrome, the most common inherited form of intellectual disability. The study appears in The Journal of Cell Biology.

2 Sep 2014

Study reveals intricate mechanisms involved in enzyme that governs DNA duplication

In a study published today in Genes & Development, Dr Christian Speck from the MRC Clinical Sciences Centre's DNA Replication group, in collaboration with Brookhaven National Laboratory (BNL), New York, reveal the intricate mechanisms involved in the enzyme that governs DNA duplication during cell division.

4 Aug 2014

Identification of new molecular mechanism indicates new ways to block uncontrolled cell division

1 Aug 2014

Scientists reveal structure of protein involved in life and development of cancer

Scientists reveal the structure of one of the most important and complicated proteins in cell division - a fundamental process in life and the development of cancer - in research published in Nature today (Sunday).

21 Jul 2014

Researchers discover new way by which metabolism is linked to regulation of DNA

A research team at the Faculty of Medicine & Dentistry at the University of Alberta have discovered a new way by which metabolism is linked to the regulation of DNA, the basis of our genetic code. The findings may have important implications for the understanding of many common diseases, including cancer.

4 Jul 2014

Yap1 oncogene drives recurrence and progression of pancreatic cancer

Pancreatic cancer tumors addicted to mutant Kras signaling for their growth and progression have a ready-made substitute to tap if they're ever forced to go cold-turkey on the mutant oncogene, scientists at The University of Texas MD Anderson Cancer Center report in the journal Cell.

20 Jun 2014

Research finding paves way for targeted approaches to treating cancer patients

Twelve years ago, UNC School of Medicine researcher Brian Strahl, PhD, found that a protein called Set2 plays a role in how yeast genes are expressed - specifically how DNA gets transcribed into messenger RNA. Now his lab has found that Set2 is also a major player in DNA repair, a complicated and crucial process that can lead to the development of cancer cells if the repair goes wrong.

9 Jun 2014

Study suggests new targets for treating rare genetic disorder and cancer

The combined action of two enzymes, Srs2 and Exo1, prevents and repairs common genetic mutations in growing yeast cells, according to a new study led by scientists at NYU Langone Medical Center.

2 Jun 2014

Scientists find interplay between two specific proteins crucial for flawless repair of crosslink damage

Environmental influences such as ionizing radiation, intense heat or various chemical substances damage the DNA constantly.

27 May 2014

TSRI scientists create bacteria with expanded DNA code

Scientists at The Scripps Research Institute have engineered a bacterium whose genetic material includes an added pair of DNA “letters,” or bases, not found in nature. The cells of this unique bacterium can replicate the unnatural DNA bases more or less normally, for as long as the molecular building blocks are supplied.

8 May 2014

3 pioneering cell biologists win 2014 E.B. Wilson Medal from American Society for Cell Biology

If cells were cars, then the three pioneering cell biologists just named winners of the 2014 E.B. Wilson Medal, the highest scientific honor of the American Society for Cell Biology, helped write the essential parts list.

8 May 2014

BRCA gene loss may accelerate cancer-promoting chromosome rearrangements

Inherited mutations in the BRCA1 or BRCA2 tumor suppressor genes are by far the most frequent contributors to hereditary cancer risk in the human population, often causing breast or ovarian cancer in young women of child-bearing age.

29 Apr 2014

Research team discovers new water-soluble fluorescent system for early detection of cancer cells

A research team lead by Academy Professor Kari Rissanen at the University of Jyväskylä has discovered a new water-soluble fluorescent detection system that is extremely sensitive to pyrophosphate (PPi).

25 Apr 2014

B1/Cdk1 protein which plays key role in cell division also boosts power of mitochondrial activity

An international team led by researchers at UC Davis has shown that the cyclin B1/Cdk1 protein complex, which plays a key role in cell division, also boosts the mitochondrial activity to power that process.

18 Apr 2014

Study shows R9-caPep compound blocks PCNA actions in neuroblastoma cells

Neuroblastoma is one of the deadliest childhood cancers, accounting for 15 percent of pediatric cancer deaths. For patients with high-risk neuroblastomas, the five-year survival rate is 40 to 50 percent even with the most rigorous treatments available today.

17 Apr 2014