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Life’s building blocks in Bennu samples

The OSIRIS-REx mission returned a large sample from asteroid Bennu, which Japanese collaborators detected includes all five nucleobases required for life. The analysis revealed high concentrations of ammonia and nitrogen-rich organic matter.

Meta Quest 3 512GB

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Split gene-editing tool offers greater precision

Researchers create adenine base editor with 'on/off' switch, reducing off-target edits by over 70% and increasing accuracy of on-target edits. The tool has potential to correct nearly half of disease-causing point mutations in human genome.

Genetics: Biosynthesis pathway of a new DNA nucleobase elucidated

Researchers have discovered the biosynthesis pathway of 2-aminoadenine, a new DNA nucleobase found in bacteriophage S-2L. The pathway was identified through a homolog of the known enzyme succinoadenylate synthase and indicates that new bases can be enzymatically incorporated into genetic material.

DNA--Metal double helix

A team developed a novel approach to generate precisely controlled, helical palladium-DNA systems that mimic the organization of natural base pairs in double-stranded DNA molecules. The process is based on self-organized assembly of a special palladium complex and single-stranded DNA molecules.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Measuring electron emission from irradiated biomolecules

A new experiment has characterised the properties of electrons emitted when adenine, a key DNA nucleobase, is bombarded with high-velocity ions. The study's findings could improve understanding of how radiation damage increases cancer risk in cells.

New biologically derived metal-organic framework mimics DNA

Scientists have synthesized a new MOF that mimics DNA's hydrogen-bonding interactions between adenine and thymine. The MOF successfully traps thymine molecules, allowing researchers to catalyze a chemical reaction and isolate di-thymine, related to skin cancer.

GoPro HERO13 Black

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Mysterious DNA modification important for fly brain

A team of Emory scientists has identified an enzyme that removes N6-methyladenine from Drosophila DNA, crucial for neuronal development. The finding provides insights into the role of this modification in humans, particularly in relation to Polycomb proteins.

DNA damage: The dark side of respiration

Researchers at LMU discover how cellular respiration generates reactive oxygen species that can cause DNA mutations, leading to cell dysfunction and cancer. The study highlights the importance of improving treatment options for cancer by inhibiting DNA repair processes in tumor cells.

Rice physicists help unravel mystery of repetitive DNA segments

Scientists at Rice University have discovered that poly(dA) repeats behave differently when stretched, requiring less force to lengthen without additional effort. The findings raise more questions about the role these repeats play in gene regulation and genome packaging.

Garmin GPSMAP 67i with inReach

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How did chemical constituents essential to life arise on primitive Earth?

A team of chemists at the University of Georgia has proposed a mechanism for how adenine, a key component of DNA, might be formed from five cyanide molecules under terrestrial conditions. The research suggests that simple molecules can combine chemically to form the building blocks of life, offering a new answer to an unsolved puzzle.

MU researcher presents origin-of-life theory for young Earth

University of Missouri-Columbia researcher Rainer Glaser presents a novel origin-of-life theory suggesting that essential molecule adenine originated from interstellar dust clouds. The presence of highly concentrated hydrogen cyanide (HCN) in these clouds could indicate the existence of adenine, which is crucial for life on Earth.

Unraveling the physics of DNA's double helix

Researchers at Duke University have made direct measurements of DNA's forces within single strands that wind around each other to form the double helix. The study, published in Physical Review Letters, reveals new insights into the stacking and pairing forces between base units.

Adenine 'tails' make tailored anchors for DNA

Scientists develop a technique to control DNA strand density on gold substrates using short adenine 'tails' as anchors. This allows for precise optimization of DNA sensor arrays by adjusting the spacing between strands.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.