When people think of DNA, they visualize a string-like double helix structure. In reality, the DNA double helix in cells is supercoiled and constrained into loops. This supercoiling and looping are ...
Tiny robots could serve all kinds of useful functions, but shrinking their actuators has proven challenging. Now researchers at the University of Wollongong (UOW) in Australia have made artificial ...
A cell has many ways to regulate gene expression, one of which is the structure of the genome itself; active genes have to be accessible to the cellular machinery to be expressed. The DNA in the ...
When people think of DNA, they visualize a string-like double helix structure. In reality, the DNA double helix in cells is supercoiled and constrained into loops. This supercoiling and looping are ...
DNA, the diverse combination of just four nucleotide letters that writes our genetic code, can do more than just form a double helix. In a new study from the National Institutes of Health (NIH) and ...
As it squeezes down the chromatin fibre, the cohesin protein complex extrudes a growing loop of DNA - a bit like the quick-lacing system of trail-running shoes. But what is powering the movement of ...
Picture in your mind a traditional “landline” telephone with a coiled cord connecting the handset to the phone. The coiled telephone cord and the DNA double helix that stores the genetic material in ...
Although it also performs some functions in men, estrogen, the main female sex hormone, is involved in a myriad of processes, which is why the body changes so much during menopause. This is because ...
Even living cells have their own tangled problems to solve. They involve knots that arise accidentally in DNA and that can comprise its functionality. A new study by SISSA (Scuola Internazionale ...
The (when stretched) two-meter-long DNA molecule in each human cell is continuously being unpacked and packed again to enable the expression of genetic information. When genes must be accessed for ...
A team of physicists working at the intersection of theory and experiment are shedding new light on the 'teamwork' of molecular motors -- called RNA polymerases (RNAPs) -- that mediate DNA ...
As it squeezes down the chromatin fiber, the cohesin protein complex extrudes a growing loop of DNA -- a bit like the quick-lacing system of trail-running shoes. But what is powering the movement of ...
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