This file is indexed.

/usr/share/gromacs/top/gmx2.ff/ffbonded.itp is in gromacs-data 4.5.5-2.

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The actual contents of the file can be viewed below.

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[ bondtypes ]
  ; i    j func        b0          kb
    C    O    1   0.12300     502080.
    C   OM    1   0.12500     418400.
    C   OA    1   0.13600     376560.
    C    N    1   0.13300     418400.
    C   NT    1   0.13300     376560.
    C   NL    1   0.13300     376560.
   C1   OA    1   0.14300     334720.
   C1    N    1   0.14700     376560.
   C1   NT    1   0.14700     376560.
   C1   NL    1   0.14700     376560.
   C1    C    1   0.15300     334720.
   C1   C1    1   0.15300     334720.
   C2   OM    1   0.14300     376560.
   C2   OA    1   0.14300     334720.
   C2    N    1   0.14700     376560.
   C2   NT    1   0.14700     376560.
   C2   NL    1   0.14700     376560.
   C2    C    1   0.15300     334720.
   C2   C1    1   0.15300     334720.
   C2   C2    1   0.15300     334720.
   C3    N    1   0.14700     376560.
   C3    C    1   0.15300     334720.
   C3   C1    1   0.15300     334720.
   C3   C2    1   0.15300     334720.
 CR51  NR5    1   0.13300     418400.
 CR51 NR5*    1   0.13300     418400.
 CR61   C2    1   0.13900     418400.
 CR61 CR61    1   0.13900     418400.
   CB    O    1   0.12300     502080.
   CB   OA    1   0.13600     376560.
   CB   NT    1   0.13300     376560.
   CB  NR5    1   0.13300     418400.
   CB NR5*    1   0.13300     418400.
   CB   NP    1   0.13800     418400.
   CB    C    1   0.15300     334720.
   CB   C2    1   0.15300     334720.
   CB   C3    1   0.15300     334720.
   CB CR51    1   0.13300     418400.
   CB CR61    1   0.13900     418400.
   CB   CB    1   0.13900     418400.
    H    N    1   0.10000     374468.
    H   NT    1   0.10000     374468.
    H   NL    1   0.10000     374468.
    H NR5*    1   0.10000     374468.
   HO   OA    1   0.10000     313800.
   HW   OW    1   0.10000     418400.
    S    O    1   0.15000     376560.
    S   C2    1   0.18300     376560.
    S   C3    1   0.17800     376560.
    S   HS    1   0.13300     313800.
    S    S    1   0.20400     418400.
   FE  NR5    1   0.19800     418400.
   FE   NP    1   0.20900     418400.
   NZ    C    1   0.13400     376560.
   NZ    H    1   0.10000     374468.
   NE    C    1   0.13400     376560.
   NE   C2    1   0.14700     376560.
   NE    H    1   0.10000     374468.
    P   OM    1   0.14800     376560.
    P   OA    1   0.16100     251040.
   OS   C2    1   0.14300     251040.
   OS    P    1   0.16100     251040.
  CS1   OA    1   0.14300     251040.
  CS1 NR5*    1   0.14800     251040.
  CS1   C2    1   0.15300     251040.
  CS1   OS    1   0.14350     251040.
  CS1  CS1    1   0.15200     251040.
  NR6 CR61    1   0.13200     418400.
  NR6   CB    1   0.13400     418400.
 NR6*   C2    1   0.14800     334720.
 NR6*   C3    1   0.14800     334720.
 NR6* CR61    1   0.14000     334720.
 NR6*   CB    1   0.14000     334720.
 NR6*    H    1   0.10000     374468.
 NR6*  CS1    1   0.14800     334720.
  CS2   OA    1   0.14300     251040.
  CS2 CR61    1   0.13900     334720.
  CS2   CB    1   0.13900     334720.
  CS2   OS    1   0.14350     251040.
  CS2  CS1    1   0.15200     251040.
  CS2 NR6*    1   0.14000     334720.
   SI   C1    1   0.18700     251040.
   SI   OS    1   0.16300     251040.
    F    C    1   0.13600     418400.
  CR5  HCR    1   0.10800     292880.
  CR6  HCR    1   0.10800     292880.
   CB  CR6    1   0.13900     418400.
 CR51 CR51    1   0.13300     418400.
  NR6   C2    1   0.13400     418400.
; NR6*   C2    1   0.13400     418400.
 NR6*  CR5    1   0.13400     418400.
   CB  CR5    1   0.13900     418400.
  CR5  NR5    1   0.13300     418400.
  CR5 NR5*    1   0.13300     418400.
  CR6   C2    1   0.13900     418400.
  CR6  CR6    1   0.13900     418400.
  CP2  CP2    1   0.15300     334720.
  CP3  CP2    1   0.15300     334720.
    C  CP2    1   0.15300     334720.
   OS    C    1   0.14350     251040.
   C1   OS    1   0.14350     251040.
; Added by RMS & EAB, Oct 95
  CR5   HC    1   0.10900     292880.
   C1   HC    1   0.10900     292880.
   C2   HC    1   0.10900     292880.
   C3   HC    1   0.10900     292880.

; get the constraint distances
#include "ff_dum.itp"

[ constrainttypes ]
; now the constraints for the rigid NH3 groups
 MNH3    C    2   DC_MNC1
 MNH3   C1    2   DC_MNC2
 MNH3   C2    2   DC_MNC2
 MNH3 MNH3    2   DC_MNMN
; now the constraints for the rigid CH3 groups
 MCH3    N    2   DC_MCN
 MCH3    S    2   DC_MCS
 MCH3    C    2   DC_MCC
 MCH3   CB    2   DC_MCC
 MCH3   C1    2   DC_MCC
 MCH3   C2    2   DC_MCC
 MCH3 NR6*    2   DC_MCNR
 MCH3 MCH3    2   DC_MCMC
; and the angle-constraining bonds for OH and SH groups in proteins:
   C2   HS    2   DC_CS
   C2   HO    2   DC_CO
   C1   HO    2   DC_CO
   CB   HO    2   DC_CO
   C    HO    2   DC_CO
   P    HO    2   DC_PO

[ angletypes ]
  ; i    j    k func       tHC         cth
   HO   OA    C    1   109.500     397.480
   HO   OA   C1    1   109.500     397.480
   HO   OA   C2    1   109.500     397.480
   HO   OA   CB    1   109.500     397.480
    P   OA   HO    1   109.500     397.480
  CS1   OA   HO    1   109.500     397.480
  CS2   OA   HO    1   109.500     397.480
   HW   OW   HW    1   109.500     502.080
   C1    N    C    1   122.000     502.080
   C2    N    C    1   122.000     502.080
   C2    N   C1    1   116.000     502.080
   C3    N    C    1   117.000     502.080
   C3    N   C1    1   125.000     502.080
   C3    N   C2    1   125.000     502.080
    H    N    C    1   123.000     292.880
    H    N   C1    1   115.000     376.560
    H    N   C2    1   115.000     376.560
    H    N   C3    1   120.000     376.560
    H   NT    C    1   120.000     292.880
    H   NT   C1    1   120.000     376.560
    H   NT   C2    1   120.000     376.560
    H   NT   CB    1   120.000     292.880
    H   NT    H    1   120.000     334.720
    H   NL    C    1   109.500     376.560
    H   NL   C1    1   109.500     376.560
    H   NL   C2    1   109.500     376.560
    H   NL    H    1   109.500     334.720
 CR51  NR5 CR51    1   108.000     418.400
   CB  NR5 CR51    1   108.000     418.400
   FE  NR5 CR51    1   125.000     251.040
 CR51 NR5* CR51    1   108.000     418.400
   CB NR5* CR51    1   108.000     418.400
  CS1 NR5* CR51    1   126.000     418.400
  CS1 NR5*   CB    1   126.000     418.400
    H NR5* CR51    1   126.000     376.560
    H NR5*   CB    1   126.000     376.560
   CB   NP   CB    1   108.000     418.400
   FE   NP   CB    1   126.000     418.400
   OM    C   OM    1   126.000     502.080
   OA    C    O    1   124.000     502.080
    N    C    O    1   124.000     502.080
   NT    C    O    1   124.000     502.080
   NL    C    O    1   124.000     502.080
   C1    C    O    1   121.000     502.080
   C1    C   OM    1   117.000     502.080
   C1    C   OA    1   115.000     502.080
   C1    C    N    1   115.000     502.080
   C1    C   NT    1   115.000     502.080
   C2    C    O    1   121.000     502.080
   C2    C   OM    1   117.000     502.080
   C2    C   OA    1   115.000     502.080
   C2    C    N    1   115.000     502.080
   C2    C   NT    1   115.000     502.080
   C2    C   NL    1   115.000     502.080
   C3    C    O    1   121.000     502.080
   C3    C    N    1   115.000     502.080
   CB    C    O    1   121.000     502.080
   CB    C    N    1   115.000     502.080
   CB    C   NT    1   115.000     502.080
   NZ    C   NZ    1   120.000     502.080
   NE    C   NZ    1   120.000     502.080
    C   C1    N    1   109.500     460.240
    C   C1   NT    1   109.500     460.240
    C   C1   NL    1   109.500     460.240
   C1   C1   OA    1   109.500     460.240
   C1   C1    N    1   109.500     460.240
   C1   C1   NT    1   109.500     460.240
   C1   C1   NL    1   109.500     460.240
   C1   C1    C    1   109.500     460.240
   C1   C1   C1    1   111.000     460.240
   C2   C1   OA    1   109.500     460.240
   C2   C1    N    1   109.500     460.240
   C2   C1   NT    1   109.500     460.240
   C2   C1   NL    1   109.500     460.240
   C2   C1    C    1   109.500     460.240
   C2   C1   C1    1   111.000     460.240
   C2   C1   C2    1   109.500     460.240
   C3   C1   OA    1   111.000     460.240
   C3   C1    N    1   109.500     460.240
   C3   C1   NT    1   109.500     460.240
   C3   C1   NL    1   109.500     460.240
   C3   C1    C    1   109.500     460.240
   C3   C1   C1    1   111.000     460.240
   C3   C1   C2    1   111.000     460.240
   C3   C1   C3    1   111.000     460.240
   SI   C1   C3    1   109.500     460.240
    C   C2    N    1   109.500     460.240
    C   C2   NT    1   109.500     460.240
    C   C2   NL    1   109.500     460.240
   C1   C2   OA    1   109.500     460.240
   C1   C2    N    1   109.500     460.240
   C1   C2    C    1   111.000     460.240
   C1   C2   C1    1   109.500     460.240
   C2   C2   OM    1   109.500     460.240
   C2   C2   OA    1   109.500     460.240
   C2   C2    N    1   109.500     460.240
   C2   C2   NT    1   109.500     460.240
   C2   C2   NL    1   109.500     460.240
   C2   C2    C    1   111.000     460.240
   C2   C2   C1    1   111.000     460.240
   C2   C2   C2    1   111.000     460.240
   C3   C2   OM    1   109.500     460.240
   C3   C2   OA    1   111.000     460.240
   C3   C2   C2    1   111.000     460.240
   C3   C2   C1    1   111.000     460.240
   CB   C2   OM    1   109.500     460.240
   CB   C2   C1    1   111.000     460.240
   CB   C2   C2    1   111.000     460.240
    S   C2   C1    1   113.000     460.240
    S   C2   C2    1   113.000     460.240
   NE   C2   C2    1   109.500     460.240
   OS   C2   C1    1   111.000     460.240
 NR6*   C2   C1    1   111.000     460.240
 NR6*   C2   CB    1   109.500     460.240
 NR6*   C2  CS1    1   109.500     460.240
 NR5* CR51  NR5    1   108.000     418.400
 NR5* CR51 NR5*    1   108.000     418.400
   CB CR51  NR5    1   108.000     418.400
   CB CR51 NR5*    1   108.000     418.400
 CR61 CR61 CR61    1   120.000     418.400
   CB CR61   C2    1   126.000     418.400
   CB CR61 CR61    1   120.000     418.400
   CB CR61   CB    1   120.000     418.400
  NR6 CR61   CB    1   120.000     418.400
  NR6 CR61  NR6    1   120.000     418.400
 NR6* CR61 CR61    1   120.000     418.400
 NR6* CR61   CB    1   120.000     418.400
  CS2 CR61 CR61    1   120.000     418.400
   C2   CB  NR5    1   126.000     418.400
   C2   CB NR5*    1   126.000     418.400
 CR51   CB  NR5    1   108.000     418.400
 CR51   CB NR5*    1   108.000     418.400
 CR51   CB   C2    1   126.000     418.400
 CR61   CB   OA    1   120.000     418.400
 CR61   CB   NT    1   120.000     418.400
 CR61   CB NR5*    1   132.000     418.400
 CR61   CB   NP    1   126.000     418.400
 CR61   CB    C    1   120.000     418.400
 CR61   CB   C2    1   120.000     418.400
 CR61   CB   C3    1   120.000     418.400
 CR61   CB CR61    1   120.000     418.400
   CB   CB    O    1   120.000     418.400
   CB   CB   NT    1   120.000     418.400
   CB   CB  NR5    1   108.000     418.400
   CB   CB NR5*    1   108.000     418.400
   CB   CB   NP    1   108.000     418.400
   CB   CB   C2    1   126.000     418.400
   CB   CB   C3    1   120.000     418.400
   CB   CB CR51    1   108.000     418.400
   CB   CB CR61    1   120.000     418.400
   CB   CB   CB    1   120.000     418.400
  NR6   CB    O    1   120.000     418.400
  NR6   CB   NT    1   120.000     418.400
  NR6   CB NR5*    1   132.000     418.400
  NR6   CB   C2    1   120.000     418.400
  NR6   CB CR61    1   120.000     418.400
  NR6   CB   CB    1   120.000     418.400
  NR6   CB  NR6    1   120.000     418.400
 NR6*   CB    O    1   120.000     418.400
 NR6*   CB   NT    1   120.000     418.400
 NR6*   CB CR61    1   120.000     418.400
 NR6*   CB   CB    1   120.000     418.400
 NR6*   CB  NR6    1   120.000     418.400
 NR6*   CB NR6*    1   120.000     418.400
  CS2   CB    C    1   120.000     418.400
  CS2   CB   C2    1   120.000     418.400
  CS2   CB CR61    1   120.000     418.400
  CS2   CB  NR6    1   120.000     418.400
   C3    S    O    1   107.000     460.240
   C3    S   C2    1   100.000     460.240
   C3    S   C3    1    97.000     460.240
   HS    S   C2    1    96.000     397.480
    S    S   C2    1   104.000     460.240
   NP   FE  NR5    1   115.000      41.840
   NP   FE   NP    1    90.000     418.400
    H   NZ    C    1   120.000     292.880
    H   NZ    H    1   120.000     334.720
   C2   NE    C    1   124.000     502.080
    H   NE    C    1   120.000     292.880
    H   NE   C2    1   116.000     376.560
   OM    P   OM    1   120.000     585.760
   OA    P   OM    1   109.600     397.480
   OS    P   OM    1   109.600     397.480
   OS    P   OA    1   103.000     397.480
   OS    P   OS    1   103.000     397.480
    P   OS   C2    1   120.000     397.480
    P   OS    P    1   120.000     397.480
  CS1   OS    P    1   120.000     397.480
  CS1   OS  CS1    1   109.500     334.720
  CS2   OS    P    1   120.000     397.480
   SI   OS  CS1    1   120.000     397.480
   SI   OS  CS2    1   120.000     397.480
   SI   OS   SI    1   155.000     397.480
   OS  CS1 NR5*    1   109.500     284.512
  CS1  CS1   OA    1   109.500     284.512
  CS1  CS1 NR5*    1   109.500     284.512
  CS1  CS1   OS    1   109.500     284.512
  CS1  CS1  CS1    1   109.500     251.040
 NR6*  CS1   C2    1   109.500     251.040
 NR6*  CS1   OS    1   109.500     284.512
 NR6*  CS1  CS1    1   109.500     251.040
  CS2  CS1   OA    1   109.500     284.512
  CS2  CS1 NR5*    1   109.500     284.512
  CS2  CS1   C2    1   109.500     251.040
  CS2  CS1   OS    1   109.500     284.512
  CS2  CS1  CS1    1   109.500     251.040
  CS2  CS1 NR6*    1   109.500     251.040
   CB  NR6 CR61    1   120.000     418.400
   CB  NR6   CB    1   120.000     418.400
   C3 NR6*   C2    1   120.000     418.400
 CR61 NR6* CR61    1   120.000     418.400
   CB NR6*   C2    1   120.000     418.400
   CB NR6*   C3    1   120.000     418.400
   CB NR6* CR61    1   120.000     418.400
   CB NR6*   CB    1   120.000     418.400
    H NR6*   C2    1   120.000     376.560
    H NR6*   CB    1   120.000     376.560
  CS1 NR6* CR61    1   120.000     418.400
  CS1 NR6*   CB    1   120.000     418.400
  CS1 NR6*    H    1   120.000     376.560
  CS2 NR6*   CB    1   120.000     418.400
  CS2 NR6*    H    1   120.000     376.560
   CB  CS2 CR61    1   120.000     418.400
  CS1  CS2   OA    1   109.500     284.512
  CS1  CS2   OS    1   109.500     284.512
  CS1  CS2  CS1    1   109.500     251.040
 NR6*  CS2   CB    1   120.000     418.400
 NR6*  CS2  CS1    1   120.000     418.400
   C1   SI   C1    1   109.500     397.480
   OS   SI   C1    1   109.500     397.480
   OS   SI   OS    1   109.500     397.480
    F    C    F    1   107.600     460.240
   C2    C    F    1   111.400     460.240
    C   C2   OA    1   110.900     460.240
  CS1   OS   C2    1   112.900     397.480
   OS   C2   C2    1   107.900     460.240
  CR6  CR6  HCR    1   120.000     376.560
  CR5  CR6  HCR    1   120.000     376.560
   CB  CR6  HCR    1   120.000     376.560
   CB  CR5  HCR    1   120.000     376.560
 NR5*  CR5  HCR    1   120.000     376.560
 NR5*  CR6  HCR    1   120.000     376.560
   CB CR51 CR51    1   108.000     418.400
    H    N    H    1   109.500     334.720
    C   C1   OA    1   109.500     460.240
   NL   C1   C3    1   109.500     460.240
   C2    S    S    1   104.000     460.240
 NR5*   CB CR61    1   132.000     418.400
   C1   CB  NR5    1   126.000     418.400
;   CB  NR5 CR51    1   125.000     251.040
   CB    C NR6*    1   120.000     418.400
    O    C NR6*    1   120.000     418.400
    C NR6*    H    1   120.000     376.560
   CB   CB    C    1   120.000     418.400
  NR6   CB    C    1   120.000     418.400
    C NR6*    C    1   120.000     418.400
  NR6   CB NR6*    1   120.000     418.400
  NR6   CB    O    1   120.000     418.400
   C2   NT   C1    1   116.000     502.080
  CR5   CB   C2    1   126.000     418.400
   CB   CB  CR5    1   108.000     418.400
   CB  CR5 NR5*    1   108.000     418.400
   CB   CB  CR6    1   120.000     418.400
    H NR5*  CR5    1   126.000     376.560
   CB NR5*  CR5    1   108.000     418.400
  CR6   CB NR5*    1   132.000     418.400
   CB  CR6   C2    1   126.000     418.400
   CB  CR6  CR6    1   120.000     418.400
   CB  CR6   CB    1   120.000     418.400
  NR6  CR6   CB    1   120.000     418.400
  CR6  CR6  CR6    1   120.000     418.400
  CR6   CB   C2    1   120.000     418.400
  CR6   CB  CR6    1   120.000     418.400
   CB  CR6   C2    1   126.000     418.400
   CB  CR6  CR6    1   120.000     418.400
   CB  CR6   CB    1   120.000     418.400
  NR6  CR6   CB    1   120.000     418.400
  NR6  CR6  NR6    1   120.000     418.400
 NR6*  CR6  CR6    1   120.000     418.400
 NR6*  CR6   CB    1   120.000     418.400
  CS2  CR6  CR6    1   120.000     418.400
  CR6   CB   OA    1   120.000     418.400
  CR6   CB   NT    1   120.000     418.400
  CR6   CB NR5*    1   132.000     418.400
  CR6   CB   NP    1   126.000     418.400
  CR6   CB    C    1   120.000     418.400
  CR6   CB   C2    1   120.000     418.400
  CR6   CB   C3    1   120.000     418.400
  CR6   CB  CR6    1   120.000     418.400
  CP2  CP2  CP2    1   111.000     460.240
  CP2  CP2  CP3    1   111.000     460.240
    C  CP2  CP2    1   111.000     460.240
    O    C  CP2    1   121.000     502.080
   OA    C  CP2    1   115.000     502.080
   OS    C  CP2    1   121.000     502.080
;   C1   C2   OS    1   121.000     502.080
   C1   OS    C    1   119.000     397.480
   C2   C1   OS    1   106.000     397.480
   OS    C    O    1   124.000     397.480
   C2   OS    C    1   119.000     397.480

; Added by DvdS, Oct 95
   NL   C1   HC    1   109.500     292.880	; N-terminus
   NT   C1   HC    1   109.500     292.880	; N-terminus
 NR5*   CB  CR5    1   108.000     418.400	; HIS stuff
   CB  CR5   HC    1   126.000     292.880
 NR5*  CR5   HC    1   126.000     292.880
 NR5*  CR5 NR5*    1   108.000     418.400
  CR5  NR5* CR5    1   108.000     418.400
  NR5   CB  CR5    1   108.000     418.400
   CB  NR5  CR5    1   108.000     418.400
  NR5  CR5   HC    1   126.000     292.880
  NR5  CR5 NR5*    1   126.000     292.880
   CB  CR5  NR5    1   108.000     418.400
   HC  CR5  NR5    1   126.000     292.880
  CR5  NR5  CR5    1   108.000     418.400
   
; Added by RMS & EAB, Oct 95
   C1   C3   HC    1   109.500     292.880
   C2   C3   HC    1   109.500     292.880
   C3   C3   HC    1   109.500     292.880
    S   C3   HC    1   109.500     292.880
   HC   C3   HC    1   109.500     292.880
   HC   C2   HC    1   109.500     292.880
   HC   C1   HC    1   109.500     292.880
    N   C2   HC    1   109.500     292.880
   NT   C2   HC    1   109.500     292.880
   NL   C2   HC    1   109.500     292.880
    C   C2   HC    1   109.500     292.880
   CB   C2   HC    1   109.500     292.880
   C1   C2   HC    1   109.500     292.880
   C2   C2   HC    1   109.500     292.880
   C3   C2   HC    1   109.500     292.880
    S   C2   HC    1   109.500     292.880
    C   C2   HC    1   109.500     292.880
   NE   C2   HC    1   109.500     292.880
   OA   C2   HC    1   109.500     292.880
    C   C1   HC    1   109.500     292.880
    N   C1   HC    1   109.500     292.880
   OA   C1   HC    1   109.500     292.880
   C1   C1   HC    1   109.500     292.880
   C2   C1   HC    1   109.500     292.880
   C3   C1   HC    1   109.500     292.880
    C   C1   HC    1   109.500     292.880

[ dihedraltypes ]
  ; i    l func        q0          cq
 NR5*  NR5    2     0.000     167.360
 NR5* NR5*    2     0.000     167.360
    C    O    2     0.000     167.360
    C   OM    2     0.000     167.360
    C   NT    2     0.000     167.360
   C1   OA    2    35.264     334.720
   C1   C1    2    35.264     334.720
   C2    N    2     0.000     167.360
   C2   NT    2     0.000     167.360
   C2    C    2     0.000     167.360
   C2   C1    2    35.264     334.720
   C3   C1    2    35.264     334.720
 CR51  NR5    2     0.000     167.360
 CR51 NR5*    2     0.000     167.360
 CR51 CR51    2     0.000     167.360
 CR61 CR61    2     0.000     167.360
   CB    O    2     0.000     167.360
   CB   OA    2     0.000     167.360
   CB   NT    2     0.000     167.360
   CB  NR5    2     0.000     167.360
   CB NR5*    2     0.000     167.360
   CB   NP    2     0.000     167.360
   CB    C    2     0.000     167.360
   CB   C2    2     0.000     167.360
   CB   C3    2     0.000     167.360
   CB CR51    2     0.000     167.360
   CB CR61    2     0.000     167.360
   CB   CB    2     0.000     167.360
    H    N    2     0.000     167.360
    H   NT    2     0.000     167.360
    H   NL    2    35.264     334.720
    H NR5*    2     0.000     167.360
   FE   NP    2     0.000     167.360
   NZ    C    2     0.000     167.360
   NE    C    2     0.000     167.360
   NE    H    2     0.000     167.360
  CS1 NR5*    2     0.000     167.360
  CS1   C2    2    35.264     334.720
  CS1   CB    2     0.000     167.360
  CS1  CS1    2    35.264     334.720
  NR6 CR61    2     0.000     167.360
  NR6   CB    2     0.000     167.360
  NR6  NR6    2     0.000     167.360
 NR6*   C2    2     0.000     167.360
 NR6*   C3    2     0.000     167.360
 NR6* CR61    2     0.000     167.360
 NR6*   CB    2     0.000     167.360
 NR6*    H    2     0.000     167.360
 NR6*  CS1    2     0.000     167.360
 NR6*  NR6    2     0.000     167.360
 NR6* NR6*    2     0.000     167.360
  CS2   CB    2     0.000     167.360
  CS2  CS1    2    35.264     334.720
  CS2 NR6*    2     0.000     167.360
   SI   C1    2    35.264     334.720
    C   C1    2     0.000     167.360
  NR6    C    2     0.000     167.360
    C    C    2     0.000     167.360
    C NR6*    2     0.000     167.360
  NR6   C2    2     0.000     167.360
  CR5  HCR    2     0.000     167.360
  CR6  HCR    2     0.000     167.360
  CR5  CR5    2     0.000     167.360
   CB  CR5    2     0.000     167.360
  NR6  CR5    2     0.000     167.360
 NR6*  CR5    2     0.000     167.360
  CR5  NR5    2     0.000     167.360
  CR5 NR5*    2     0.000     167.360
  CR5  CR5    2     0.000     167.360
   CB  CR5    2     0.000     167.360
   CB  CR6    2     0.000     167.360
  CR6  CR6    2     0.000     167.360
   OS    C    2     0.000     167.360
    C    O    2     0.000     167.360
   C1   OS    2    35.264     334.720
   C1   OA    2    35.264     334.720
; Added DvdS, Oct 95
  CR5   HC    2     0.000     167.360

[ dihedraltypes ]
  ; j    k func      phi0          cp   mult
    C   OA    1   180.000      16.736      2
    C    N    1   180.000      33.472      2
    C   NT    1   180.000      33.472      2
    C   NL    1     0.000       3.766      3
   C1   OA    1     0.000       1.255      3
   C1    N    1   180.000       0.418      6
   C1   NT    1     0.000       3.766      6
   C1   NL    1     0.000       3.766      3
   C1    C    1     0.000       0.418      6
   C1   C1    1     0.000       5.858      3
   C2   OA    1     0.000       1.255      3
   C2    N    1   180.000       0.418      6
   C2   NT    1     0.000       3.766      6
   C2   NL    1     0.000       3.766      3
   C2    C    1     0.000       0.418      6
   C2   C1    1     0.000       5.858      3
   C2   C2    1     0.000       5.858      3
   CB   OA    1   180.000       7.113      2
   CB   NT    1   180.000      33.472      2
   CB    C    1   180.000       5.858      2
   CB   C2    1     0.000       0.418      6
   CB CR61    1   180.000      41.840      2
    S   C2    1     0.000       2.929      3
    S    S    1     0.000      16.736      2
   FE  NR5    1     0.000       0.000      4
   NZ    C    1   180.000      33.472      2
   NE    C    1   180.000      33.472      2
   NE   C2    1   180.000       0.418      6
; two or three dihedral potentials are needed over some bonds,
; put the parameters in your topology manually
;    P   OA    1     0.000       1.046      3
;    P   OA    1     0.000       3.138      2
   OS   C2    1     0.000       3.766      3
;   OS    P    1     0.000       1.046      3
;   OS    P    1     0.000       3.138      2
  CS1   OA    1     0.000       1.255      3
  CS1 NR5*    1     0.000       0.000      2
  CS1   C2    1     0.000       5.858      3
  CS1   OS    1     0.000       3.766      3
;  CS1  CS1    1     0.000       5.858      3
;  CS1  CS1    1     0.000       0.418      2
;  CS1  CS1    1     0.000       2.092      2
  NR6   CB    1   180.000      33.472      2
 NR6*   C2    1     0.000       0.418      6
 NR6*   CB    1   180.000      33.472      2
 NR6*  CS1    1     0.000       0.000      2
  CS2   OA    1     0.000       1.255      3
  CS2   OS    1     0.000       3.766      3
;  CS2  CS1    1     0.000       5.858      3
;  CS2  CS1    1     0.000       0.418      2
;  CS2  CS1    1     0.000       2.092      2
   SI   C1    1     0.000       5.858      3
   SI   OS    1     0.000       3.766      3
    C  CP2    1     0.000       0.418      6
   C1   OS    1     0.000       3.766      3
    C   OS    1     0.000       3.766      3
  CP2  CP2    1     0.000       0.418      6

; Added DvdS  
   C1   C3    1   180.000       0.418      6
   C2   C3    1   180.000       0.418      6
    S   C3    1   180.000       0.418      6
   
[ dihedraltypes ]
CP2 CP2  3   9.2789   12.156  -13.120 -3.0597 26.240 -31.495
 C2  C2  3   9.2789   12.156  -13.120 -3.0597 26.240 -31.495