Gopalasamudram Narayana Ramachandran, or
G.N. Ramachandran,
FRS (8 October 1922 – 7 April 2001) was an Indian
physicist who was known for his work that led to his creation of the
Ramachandran plot for understanding
peptide structure. He was the first to propose a triple-helical model for the structure of
collagen. He subsequently went on to make other major contributions in
biology and
physics.