Other researchers had previously identified proteins in fossils less than half as old, but those efforts required destroying part of the fossil itself. (discovermagazine.com)
The researchers identified proteins specific to human blood and organs, which was a surprise, and showed that the vessels once held organ remains. (sciencemag.org)
Scientists have identified a protein on the surface of human red blood cells that serves as an essential entry point for invasion by the malaria parasite. (sciencedaily.com)