Refer to the Ramachandran plot below to determine which of the following combinations of phi and psi angles for the central PROLINE residue are ALLOWED for the tripeptide sequence A-P-K. Each correctly assigned choice earns 0.1 marks.
Options.
phi = -70, psi = +160
phi = +160, psi = -70
phi =+70, psi = -80
phi = -70, psi = -10
phi = -70, psi = -90
