Having 'solved' the structure of ... as the core of the collagen molecule. This turned out to be quite reasonable because it was known that polyproline formed a helix 3, of three residues per ...

Collagen is a complicated protein made up of long strands that connect to form a strong triple helix. This structure is ...

MIT study explains why dinosaur collagen survived for millions of years. Collagen, a protein prevalent in bones and connective tissue, has been discovered in dinosaur fossils as old as 195 million ...

Figure 1: Pauling and Corey's first guess at the structure of collagen, showing a beautifully drawn illustration of their proposed three-chain helix: it was wrong, and they later withdrew it.