Related topics: dna

Scientists have tracked down an elusive 'tangled knot' of DNA

It's DNA, but not as we know it. In a world first, Australian researchers have identified a new DNA structure—called the i-motif—inside cells. A twisted 'knot' of DNA, the i-motif has never before been directly seen inside ...

Biomimetic chemistry—DNA mimic outwits viral enzyme

Not only can synthetic molecules mimic the structures of their biological models, they can also take on their functions and may even successfully compete with them, as an artificial DNA sequence designed by Ludwig-Maximilians-Universitaet ...

A mutational timer is built into the chemistry of DNA

If you had to copy billions of letters from one sheet of paper to another, you'd probably make a few mistakes. So it might not come as a surprise that when DNA makes a copy of its three-billion-base genetic code, it can slip ...

How molecular scissors cut in the right place

A research group at Uppsala University has found out how CRISPR-Cas9—also known as 'molecular scissors'—can search the genome for a specific DNA sequence. Cas9 already has many applications in biotechnology and is also ...

Scientists map key DNA protein complex at near-atomic resolution

Chalking up another success for a new imaging technology that has energized the field of structural biology, researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) obtained the highest ...

Deciphering potent DNA toxin's secrets

One of the most potent toxins known acts by welding the two strands of the famous double helix together in a unique fashion which foils the standard repair mechanisms cells use to protect their DNA.

Video imaging of single molecule DNA replication

Almost all life on Earth is based on DNA being copied, or replicated. Now for the first time scientists have been able to watch the replication of a single DNA molecule, with some surprising findings. For one thing, there's ...

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