Dihedral angles of amino acid residues are one of the important conformational properties to define the complex three- dimensional structure of protein. Two important dihedral angles in protein backbone are o (answer "left" or "right") as in the following structure and W. fanswer "leftor "right") as in the following structure Peotide Unit QUESTION 8 in multidimensional NMR correlation experiments, magnetization is efficiently transferred from one nucleus to another via JAL