Biosynthesis pathway of a new DNA nucleobase elucidated
DNA is composed of nucleobases represented by the letters A, T, G and C. They form the basis of the genetic code and are present in all living beings. But in a bacteriophage, another base, represented by the letter Z, exists. This exception, the only.....»»
Hidden in the teeth: DNA study finds these 19th century lions preyed on humans and giraffes
In 1898, two male lions terrorized an encampment of bridge builders on the Tsavo River in Kenya. The lions, which were massive and maneless, crept into the camp at night, raided the tents and dragged off their victims. The infamous Tsavo "man-eaters".....»»
Signaling pathway discovery could lead to faster, more reliable human stem cell differentiation
A recent discovery has found a possible avenue to improve human health by better understanding how to engineer human stem cell differentiation......»»
Advanced model predicts gene architecture via nucleosome position
DNA—the molecule that carries the genetic information of all living organisms—is packaged within cells in a complex manner that allows it to function efficiently. Nucleosomes facilitate DNA compaction and also play a crucial role in regulating ge.....»»
Using a unique combination of DNA techniques to authenticate ginseng supplements and combat adulteration
Rosalee Hellberg, an associate professor in Chapman University's Food Science Program, and her research team have made a significant breakthrough in the fight against adulteration in dietary supplements. Effective methods for identifying adulteration.....»»
You get your energy from your mom. A new study explains why
It's one of the basic tenets of biology: We get our DNA from our mom and our dad. But one notable exception has perplexed scientists for decades: Most animals, including humans, inherit the DNA inside their mitochondria—the cell's energy centers—.....»»
Reconstruction of fruit fly"s anterior visual pathway may lead to insights into animal navigation
UC Santa Barbara neuroscientists have reconstructed the entire anterior visual pathway of a fruit fly, a complex series of connections between the insect's eyes and the navigation center of its brain......»»
Researchers reveal key mechanism in regulating DNA recombination
Meiotic recombination generates genetic diversity and promotes proper chromosomal segregation of parental chromosomes. This process requires a set of recombinases polymerized on single-stranded (ss) DNAs called the nucleoprotein filament to undergo h.....»»
Engineers create a chip-based tractor beam for biological particles
MIT researchers have developed a miniature, chip-based "tractor beam," like the one that captures the Millennium Falcon in the film "Star Wars," that could someday help biologists and clinicians study DNA, classify cells, and investigate the mechanis.....»»
23andMe Is Sinking Fast. Can the Company Survive?
The home DNA testing boom is over, and 23andMe is running out of options......»»
First-ever artificial cell nuclei created in living egg from purified DNA injection
A research group is the first in the world to succeed in constructing artificial cell nuclei by injecting purified DNA solution instead of sperm into living mouse eggs. Their findings are published in the journal Genes to Cells......»»
Developing novel chiral capsule tools for advanced optical technologies
Chirality is an essential property in biology; the molecular building blocks of some of the most important biological structures, including DNA and proteins, are chiral. When a molecule is said to be chiral, it means that it is distinguishable from i.....»»
Q&A: Using a new approach to shine a light on hidden plant microbes
Despite there being more microbes on Earth than stars in our galaxy, only a tiny fraction have been discovered. An approach called metagenomics—a type of DNA sequencing—may help scientists learn more about these elusive organisms, according to Pe.....»»
Franklin expedition captain who died in 1848 was cannibalized by survivors
Scientists matched DNA of living descendent to Capt. James Fitzjames of the HMS Erebus. Scientists at the University of Waterloo have identified one of the doomed crew members of.....»»
Research provides new insights into role of mechanical forces in gene expression
The genome inside each of our cells is modeled by tension and torsion—due in part to the activity of proteins that compact, loop, wrap and untwist DNA—but scientists know little about how those forces affect the transcription of genes......»»
Double-edged STING: A new pathway involved in aging
A protein called STING, previously shown to control a pathway that contributes to antiviral signaling, also plays an important role in cellular stress clearance and cell survival, according to a new paper published in Molecular Cell......»»
Exploring the interplay between phosphate signaling and jasmonate pathways in tea plants
Catechins, the key active components in tea, are known for their protective effects against conditions like diabetes, cancer, and cardiovascular diseases. However, their biosynthesis is highly sensitive to environmental factors, particularly phosphat.....»»
Ultra-Precise Particle Measurement Narrows Pathway to ‘New Physics’
A long-awaited calculation of the W boson’s mass agrees with theory, contradicting a previous anomaly that had raised the possibility of new physics beyond the Standard Model.....»»
Study reviews ginsenoside biosynthesis and regulation in Panax notoginseng
Panax notoginseng, a perennial herb central to traditional Chinese medicine, is celebrated for its health benefits, such as promoting blood circulation and reducing inflammation. Its key components, ginsenosides, are associated with various pharmacol.....»»
The olive tree"s blueprint: Key insights into high-quality oil production
A pivotal study has decoded the genetic basis of olive oil production, revealing a key regulatory mechanism that shapes oil biosynthesis. By mapping the olive tree's genome and metabolic pathways, researchers have identified how MYC2, a critical tran.....»»
Chemical chameleon reveals novel pathway for separating rare-earth metals
Researchers at the Department of Energy's Oak Ridge National Laboratory have found a chemical "chameleon" that could improve the process used to purify rare-earth metals used in clean energy, medical and national security applications......»»