Ramachardan Plots Flashcards
1
Q
What are the rotation angles around the N-Ca and Ca—C bonds called?
A
The rotation angle around the N-Ca bond is called φ (phi), and that around the Ca-C bond is called ψ (psi).
2
Q
What restricts free rotation around the N—Ca and Ca—C bonds?
A
The presence of bulky side chains and the structure of proline restrict free rotation around the N—Ca and Ca—C bonds.
3
Q
What is the peptide bond angle designated as?
A
The peptide bond angle is designated as ω (omega).
4
Q
Who constructed space-filling models of peptides to determine steric angles in a polypeptide chain?
A
The biophysicist G. N. Ramachandran and his colleagues constructed space-filling models of peptides to determine steric angles in a polypeptide chain.
