provides the first visualization of how the sequence of collagen defines distinctive local conformational variations in triple-helical structure. Figure 1: a, A partial sequence from human type ...

Collagen is composed mainly of the amino acids glycine, proline, and hydroxyproline. These amino acids form three strands, which make up the triple-helix structure characteristic of collagen.

At the molecular level, collagens consist of a rope-like structure of three interwoven strands known as a triple helix. Collagen self-organization begins at one end of this structure and ...