BTNMOD Modified paramaters for Biotin (RWD)
MASS
SD 32.06
DH  1.008
DC 12.01
DN 14.01

BOND
SD-C  395.0      1.69
HC-DC 300.0      1.54
DC-DH 367.0      1.08
DC-DN 428.0      1.38
DN-DH 434.0      1.01
DC-DC 469.0      1.40
DH-HC 300.0      1.08
DH-H  300.0      1.08

ANGL
N -C -N     70.0       115.4
SD-C -N     80.0       122.9
HC-CT-S     80.0       109.5
HC-CT-N     70.0       109.5
DH-HC-CT   150.0       109.5
DH-H -N    150.0       109.5
DH-HC-DH    70.0       109.5
DH-H -DH    70.0       109.5
CT-HC-DC    70.0       125.0
HC-DC-DH    35.0       120.0
HC-DC-DN    70.0       108.7
HC-DC-DC    63.0       120.0
DC-DN-DH    30.0       120.0
DC-DN-DC    70.0       111.6
DC-HC-DC    70.0       104.4
DH-DC-DN    35.0       120.0
DN-DC-DC    63.0       120.0
DC-DC-DH    35.0       120.0
DC-DC-DC    63.0       120.0

DIHE
SD-C -N -X    4   11.2        180.0              2.
X -CT-HC-X    6    0.0          0.0              2.
X -N -H -X    4    6.0        180.0              2.
X -DC-HC-X    4   14.5          0.0              2.
X -DC-DN-X    4    6.0        180.0              2.
X -DC-DC-X    4   14.5        180.0              2.

IMPR
SD-C -N -N        10.5        180.0              2.
X -X -HC-CT        1.1        180.               2. 
X -X -DC-DH        1.1        180.               2.
X -X -DN-DH        1.0        180.               2. 

NONB
  SD       2.00       0.20
  DH       0.00       0.00
  DC       0.00       0.000
  DN       0.00       0.000