RESIDUE PNP
TORSION TOR1 90. C2 C1 O1P P CM P O2P O3P
TORSION TOR2 60. O2P P O1P C1 C1 C2 C3 C4 C5 C6 N O1N O2N
TORSION TOR3 90. P O1P C1 C2 C2 C3 C4 C5 C6 N O1N O2N
TORSION TOR4 60. C1 O1P P O2P CM O2P O3P