RESIDUE U73 TORSION TOR1 120. C5 C1 C6 C8 C8 C7 TORSION TOR2 90. C10 C12 C13 C14 C14 C15 C16 N17 C18 TORSION TOR3 90. C14 C13 C12 C10 O11 C10 N9 C3 N4 C5 S2 C1 C6 C8 C7