[ None ]

[ COO- ]
[ replace ]
 C  C   CC      12.011  0.34
 O  OT1 OC      15.9994 -0.67
 OXT    OT2 OC      15.9994 -0.67   
[ add ]
 2  8   OT  C   CA  N
    OC  15.9994 -0.67   -1
[ impropers ]
 C  CA  OT2 OT1      

; Created by Cuendet and Bjelkmar.
[ COOH ]
[ replace ]
 C  C   CD      12.011  0.72
 O  OT1 OB      15.9994 -0.55
 OXT    OT2 OH      15.9994 -0.61
[ add ]
 2  8   OT  C   CA  N
    OB  15.9994 -0.55   -1
 1  2   HT2 OT2 C   CA
    H   1.008   0.44   -1
[ replace ]
 OT2    OT2 OH1     15.9994 -0.61
[ impropers ]
 C  CA  OT2 OT1

; Created by Michel Cuendet.
[ CT2 ]
[ replace ]
 C      CC      12.011  0.55
 O      O       15.9994 -0.55
[ add ]
 1  2   NT  C   CA  N
    NH2 14.0027 -0.62   -1
 2  3   HT  NT  C   CA
    H   1.008   0.00   -1
[ replace ]
 HT1        H       1.008   0.30    ; this one is trans to O
 HT2        H       1.008   0.32    ; this one is cis to O
[ impropers ]
 C  NT  CA  O
 C  CA  NT  O
 NT C   HT1 HT2
 NT C   HT2 HT1


; added by Justin Lemkul 
[ 3TER ]
[ replace ]
 O3'   ON5      15.9994  -0.66
 C3'   CN7      12.011    0.14
[ add ]
 1  2  H3T  O3'  C3'  C4'
    HN5  1.008   0.43   -1