FORCE FIELD FOR SOD ACTIVE SITE, monomer or dimer
MASS 
CU 63.55
NL 14.01
NK 14.01
NJ 14.01
NM 14.01
NN 14.01
NQ 14.01
NR 14.01
O9 15.99

BOND               !! formal, we use shake during  MD!!
CU-S   40.       2.20
CU-NL  40.       2.13
CU-NJ  40.       2.13    
CU-NK  40.       2.13  
CC-NL 422.       1.385             
CR-NL 488.       1.335                  
CW-NJ 427.       1.381                                              
CR-NJ 488.       1.335                                    
CW-NK 427.       1.381                                              
CR-NK 488.       1.335                                    
CC-NM 422.       1.385                          
CR-NM 488.       1.335                                    
CC-NN 422.       1.385                          
CR-NN 488.       1.335                                    
CC-NQ 422.       1.385               
CR-NQ 488.       1.335                  
CW-NR 427.       1.381                                              
CR-NR 488.       1.335                  
O9-O9 488.       1.335                  

ANGL
CT-S -CU    20.        110.0
S -CU-S     20.        180.0
NJ-CU-NL    20.        137.0
NK-CU-NL    20.         91.2
NJ-CU-NK    20.        109.9    
NJ-CU-NR    20.         87.5
NK-CU-NR    20.        162.3
NL-CU-NR    20.         78.8
CC-NL-CU    20.        126.0
CR-NL-CU    20.        126.0
CW-NJ-CU    20.        126.0
CR-NJ-CU    20.        126.0
CW-NK-CU    20.        126.0
CR-NK-CU    20.        126.0
CW-NR-CU    20.        126.0
CR-NR-CU    20.        126.0
CR-NJ-CW    70.        107.3
HC-CR-NJ    35.        120.0
CC-CW-NJ    70.        105.9
HC-CW-NJ    35.        120.0
NA-CR-NJ    70.        110.7
CC-NM-CR    70.        107.3
CT-CC-NM    70.        122.2
CW-CC-NM    70.        108.7
HC-CR-NM    35.        120.0
CW-CC-NM    70.        108.7
NA-CR-NM    70.        110.7
CC-NN-CR    70.        107.3
CT-CC-NN    70.        122.2
CW-CC-NN    70.        108.7
HC-CR-NN    35.        120.0
CW-CC-NN    70.        108.7
NA-CR-NN    70.        110.7
CC-NQ-CR    70.        107.3
CT-CC-NQ    70.        122.2
CW-CC-NQ    70.        108.7
HC-CR-NQ    35.        120.0
CW-CC-NQ    70.        108.7
NA-CR-NQ    70.        110.7
CC-NL-CR    70.        107.3
CT-CC-NL    70.        122.2
CW-CC-NL    70.        108.7
HC-CR-NL    35.        120.0
CW-CC-NL    70.        108.7
NA-CR-NL    70.        110.7
CR-NK-CW    70.        107.3
HC-CR-NK    35.        120.0
CC-CW-NK    70.        105.9
NA-CR-NK    70.        110.7
HC-CW-NK    35.        120.0
CR-NR-CW    70.        107.3
CR-NR-CV    70.        105.3
HC-CR-NR    35.        120.0
HC-CW-NR    35.        120.0
CC-CV-NR    70.        109.9
CC-CW-NR    70.        105.9
NQ-CR-NR    70.        120.0     

DIHE
S -CU-S -CT   2    0.0        0.0                3.
X -CU-NJ-X    2    0.0        0.0                3.
X -CU-NK-X    2    0.0        0.0                3.
X -CU-NL-X    2    0.0        0.0                3.
X -CU-NR-X    2    0.0        0.0                3.
X -CR-NK-X    4    9.3        180.               2.
X -CW-NK-X    4    6.0        180.               2.
X -CR-NJ-X    4    9.3        180.               2.
X -CW-NJ-X    4    6.0        180.               2.
X -CR-NJ-X    4    9.3        180.               2.
X -CW-NJ-X    4    6.0        180.               2.
X -CC-NM-X    4    5.6        180.               2.
X -CR-NM-X    4    9.3        180.               2.
X -CC-NN-X    4    5.6        180.               2.
X -CR-NN-X    4    9.3        180.               2.
X -CC-NQ-X    4    5.6        180.               2.
X -CR-NQ-X    4    9.3        180.               2.
X -CC-NL-X    4    5.6        180.               2.
X -CR-NL-X    4    9.3        180.               2.
X -CW-NR-X    4    6.0        180.               2.
X -NR-CW-X    4    6.0        180.               2.
X -CR-NK-CU   2    0.0        180.               2.
X -CW-NK-CU   2    0.0        180.               2.
X -CR-NJ-CU   2    0.0        180.               2.
X -CW-NJ-CU   2    0.0        180.               2.
X -CC-NL-CU   2    0.0        180.               2.
X -CR-NL-CU   2    0.0        180.               2.
X -CW-NR-CU   2    0.0        180.               2.
X -CR-NR-CU   2    0.0        180.               2.

NONB      AC
  CU       1.1        0.0125
  NL       1.75       0.16
  NJ       1.75       0.16
  NK       1.75       0.16
  NM       1.75       0.16
  NN       1.75       0.16
  NQ       1.75       0.16
  NR       1.75       0.16
  O9       1.54       0.70