Uncategorized
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RNA and DNA help cells switch class
Immune cells may tailor their genetic blueprint for antibodies through unusual RNA-DNA structures.
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Molecule sparks origin-of-life debate
The first genetic material may have been a molecule called peptide nucleic acid, or PNA.
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Pen-shaped device purifies water
A battery-powered instrument the size and shape of a pen can quickly disinfect contaminated drinking water.
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Bacteria give carpet a nasty smell
A compound produced by bacteria may be responsible for the "cat urine" smell of some new carpeting.
- Chemistry
Protein’s structure lights the way
Forty years after the discovery of aequorin in a jellyfish, the structure of this calcium-tracking, glowing protein is resolved.
