A new RNA catalyst from the lab

Enzymes enable biochemical reactions that would otherwise not take place on their own. In nature, it is mostly proteins that function as enzymes. However, other molecules can also perform enzymatic reactions—for example ...

Searching for the chemistry of life

In the search for the chemical origins of life, researchers have found a possible alternative path for the emergence of the characteristic DNA pattern: According to the experiments, the characteristic DNA base pairs can form ...

Team decodes another piece of the histone code puzzle

Inside our cells, DNA is tightly packed and spooled around proteins called histones. Packaging DNA in this way allows large amounts of genetic material to exist inside the cell in a final form called chromatin. Tiny enzymes ...

Physical force alone spurs gene expression, study reveals

Cells will ramp up gene expression in response to physical forces alone, a new study finds. Gene activation, the first step of protein production, starts less than one millisecond after a cell is stretched—hundreds of times ...

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