Protein knots gain new evolutionary significance

(Phys.org) -- A new study suggests that protein knots, a structure whose formation remains a mystery, may have specific functional advantages that depend on the nature of the protein's architecture.

A revolution in knot theory

In the 19th century, Lord Kelvin made the inspired guess that elements are knots in the "ether". Hydrogen would be one kind of knot, oxygen a different kind of knot---and so forth throughout the periodic table of elements. ...

Tying molecules in knots

A new generation of lighter, stronger plastics could be produced using an intricate chemical process devised by scientists.

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