Collagen, the body's most abundant protein, has long been viewed as a predictable structural component of tissues. However, a ...

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.

Here's everything you need to know. Collagen is the most abundant protein our bodies produce. It is made from three chains of amino acids arranged into a helix pattern that is found in our muscles ...