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Harvard Medical School researchers identify new targets to inhibit viral replication and may inform the development of a new class of antiviral drugs. iStock

Catch a virus by the tail

Some RNA viruses such as Segmented negative-sense (SNS) RNA viruses initiate infection by delivering into cells a suite of genomic RNA segments, each sheathed...
Study reveals key step in cell protein production from genes

Study reveals key step in cell protein production from genes

DNA is the information molecule. It stores instructions for making other large molecules, called proteins. These instructions are stored inside each of your cells,...
Scientists created world’s first living organism with fully redesigned DNA

Scientists created world’s first living organism with fully redesigned DNA

Scientists at Cambridge University have created the world’s first living organism that has a fully synthetic and radically altered DNA code. They have replaced the...
Brian Cafferty, a postdoctoral scholar in the lab of George Whitesides

New system that store data in organic molecules for millennia

Although the information is ubiquitous, and its technology arguably among the highest that humankind has produced, its very ubiquity has posed new types of...
April 22, 2019 largest simulation to date of an entire gene of DNA A Los Alamos-led team created the largest simulation to date of an entire gene of DNA, a feat that required one billion atoms to model.

Scientists have created the largest simulation of an entire gene of DNA

The growing interest in the complexity of biological interactions is continuously driving the need to increase system size in biophysical simulations, requiring not only...
Illustration of a DNA-wrapped single-walled carbon nanotube (credit: Benjamin Lambert, EPFL)

Directed evolution method can engineer synthetic nanoparticles

Mimicking natural evolution, directed evolution guides the synthesis of proteins with improved or new functions. The technique is powerful enough that it can engineer...
An X-ray diffraction image of part of a molecule of DNA. The new, 8-letter version, is similarly stable. Credit: Science Source/Science Photo Library

Scientists have created a whole new kind of DNA that could support life

There are four types of nitrogenous bases in DNA. Adenine (A) and guanine (G) are double-ringed purines, and cytosine (C) and thymine (T) are...
New study may help address drug resistant pneumococcal diseases

New study may help address drug resistant pneumococcal diseases

Indian researchers have identified three drug target sites in the genome of Streptococcus pneumoniae, paving the way for developing newer drugs to treat Pneumococcal...
Family tree revealing paternal inheritance of mitochondrial DNA (mtDNA). Luo et al.2 sequenced the mtDNA of several members of a family in which many individuals had a high level of mtDNA heteroplasmy (the presence of distinct genetic variants in the same cell). This mtDNA variability is denoted by two colours in the same silhouette of an individual. The analysis showed that some of the individuals with heteroplasmy had inherited mtDNA from both of their parents, breaking the usual pattern of exclusive maternal inheritance of mtDNA. Luo et al. suggest that the ability to inherit paternal mtDNA is a genetic trait.

Mitochondrial DNA can be inherited from fathers, not just mothers

DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the...

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