# modified force field for oxo-G MASS DH 1.0 BOND CK -O 570.0 1.229 JCC,7,(1986),230; AA,CYT,GUA,THY,URA CB-NA 414.0 1.391 JCC,7,(1986),230; ADE,GUA CK-NA 529.0 1.304 JCC,7,(1986),230; ADE,GUA ANGLE CB-CB-NA 70.0 111.30 C -CB-NA 70.0 130.00 CB-NA-H 30.0 120.00 CB-NA-CK 70.0 103.80 NA-CK-O 80.0 120.60 N*-CK-O 80.0 120.90 N*-CK-NA 70.0 115.40 CK-NA-H 30.0 120.00 DIHE X -CB-NA- X 4 6.00 180.0 2. JCC,7,(1986),230 X -CK-NA- X 4 5.60 180.0 2. JCC,7,(1986),230 IMPROPER NB-N*-CK-H5 1.1 180. 2. from par94.dat NA-N*-CK- O 10.50 180. 2. from par94.dat