Scientists Map One Of Biology's Critical Light-sensing Structures

Scientists Map One Of Biology's Critical Light-sensing Structures: "In the Nov. 17, 2005 issue of the journal Nature: a team of scientists from the University of Wisconsin-Madison report that they have obtained the crystal structure of a phytochrome from a bacterium, the first such light-gathering structure depicted for all of biology. The structure of the bacterial phytochrome, according to the report, suggests its architecture first arose a billion or so years ago in a common ancestor and is shared among not only bacteria, but also by plants and fungi."