Scientists have invented a major new advance in DNA nanotechnology. Dubbed 'single-stranded origami,' their ... scale one thousand times smaller than a human hair -- that they hope will one ...

The world’s most famous molecule – the DNA double helix – sometimes doubles up again. Researchers have now found this quadruple-stranded form in healthy human cells for the first time.

Image based on an x-ray crystal structure of a G-quadruplex formed from the DNA sequence found in human genomes. Sixty years after scientists described the chemical code of life — an ...

On their own, however, polymerases aren't good at staying on the DNA strand. They require CTF18-RFC in humans and Ctf18-RFC in yeast to thread a ring-shaped clamp onto the DNA leading strand ...

On their own, however, polymerases aren't good at staying on the DNA strand. They require CTF18-RFC in humans and Ctf18-RFC in yeast to thread a ring-shaped clamp onto the DNA leading strand ...

But DNA doesn't always assume this form. The existence of one shape of DNA in humans, in particular — a four-stranded knot of genetic code — has been controversial among scientists for years.

This top view of a G-quadruplex shows its structure in the DNA of a human telomere, where they frequently form. Thomas Splettstoesser/Wikimedia Commons In describing the two-stranded structure of DNA, ...