2009 Science News of the Year: Molecules | Science News

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2009 Science News of the Year: Molecules

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5:06pm, December 18, 2009

New bond in the basement
Basements house hidden treasures — including a chemical bond never before seen in living things. Scientists have discovered that collagen fibers in the basement membrane — a tough, structural layer of cells that surrounds most tissues in animals — are connected by a sulfur-nitrogen bond (SN: 9/26/09, p. 5). Basement membranes anchor cells, provide a framework for developing tissues and blood vessels, and help regulate cell behavior and signaling. The discovery could h

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