Question

11. In an idealized collagen triple helix, the dihedral angle o = _ closely correspond to in the following possible torsion angles, while y = __ closely correspond to ___ (Hints: check your powerpoint slide as a guide; For angle less than 180°, clockwise-positive, counterclockwise negative) А в с DEF OP Y

Answer 1

11. Angle Φ= -51°, closely correspond to C in the following, while Ψ = +153°, closely correspond to B in the following .

12.C. because antiparallel have more linear hydrogen bond and a high concentration of Ala and Gly and are more perfectly aligned in antiparallel.