G.N. Ramachandran

@article{Subramanian2001GNR,
  title={G.N. Ramachandran},
  author={Easwara Subramanian},
  journal={Nature Structural Biology},
  year={2001},
  volume={8},
  pages={489-491}
}
nature structural biology • volume 8 number 6 • june 2001 489 G.N. Ramachandran, an outstanding figure in the field of protein structure, passed away at the age of 78, on April 7, 2001, in Chennai (the erstwhile city of Madras), India. Ramachandran (G.N.R. or Ram to his friends and associates) was the founder of the ‘Madras school’ of conformational analysis of biopolymers. His discovery of the triple helical structure of collagen in 1955 and his analysis of the allowed conformations of… 
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References

SHOWING 1-7 OF 7 REFERENCES
The Structure of Collagen
TLDR
This paper applies helical diffraction theory to deduce the three-chain, coiled coil structure of collagen, a family of extracellular proteins that are a major component of connective tissue and make up one-third of all proteins in the human body.
Crystal and molecular structure of a collagen-like peptide at 1.9 A resolution.
TLDR
The structure of a protein triple helix has been determined by x-ray crystallographic studies of a collagen-like peptide containing a single substitution of the consensus sequence, which adopts a triple-helical structure that confirms the basic features determined from fiber diffraction studies on collagen.
Cataphoresis of Crystal Nuclei
RECENT observations on the crystallization of lithium sulphate by Helen Rae and A. E. Robinson may possibly provide a further example of the formation of crystallization nuclei bearing a net charge
The structure and action of proteins
Where you can find the the structure and action of proteins easily? Is it in the book store? On-line book store? are you sure? Keep in mind that you will find the book in this site. This book is very
Ramachandran – a biography
  • 1998