The Structure of Collagen

@article{Rich1955TheSO,
  title={The Structure of Collagen},
  author={Alexander Rich and Francis H. C. Crick},
  journal={Nature},
  year={1955},
  volume={176},
  pages={915-916}
}
During the 1950s Crick made crucial contributions not only to the study of DNA and the genetic code, but to X-ray structure analysis of important biological molecules. He was instrumental in extending helical diffraction theory to construct three-dimensional maps of protein molecules from X-ray data. In particular, he calculated the complicated X-ray diffraction pattern produced by a helix that was itself wound around a second axis into a larger super helix, or coiled coil. In this paper… 
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Revision of collagen molecular structure.
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It was found that the diffraction data from native collagen could be explained by the 7/2-helical model better than, or at least the same as, the prevailing 10/3-helicals model.
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NMR and x-ray studies of collagen model peptides.
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The main focus is to review and to address the current state of knowledge in the field of NMR and x-ray analysis of triple helical model peptides.
Structure Analysis of a Collagen Model Polypeptide, (Pro–Pro–Gly)10
A detailed conformation study of the polypeptide (Pro–Pro–Gly)10, synthesized as a collagen model, has been done using X-ray diffraction. Several structures having the observed helical parameters
Molecular structure of the collagen triple helix.
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