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Crick here reviewed his work with Alexander Rich on collagen during the 1950s. Collagens make up a family of proteins that share a triple-helical shape (three strands of a polypeptide chain wound around one another, corkscrew-like) and that are a major structural component of connective tissue, giving it strength and flexibility.
Original Repository:
The Wellcome Library for the History and Understanding of Medicine. Francis Harry Compton Crick Papers
Location:
Box: 11. Folder: PP/CRI/D/1/1/19
Rights:
Reproduced with permission of the Wellcome Library for the History and Understanding of Medicine. and http://library.wellcome.ac.uk/
Original Repository. Wellcome Library for the History and Understanding of Medicine. Francis Harry Compton Crick Papers. 11646. URL. http://archives.wellcome.ac.uk/