/usr/share/gromacs/top/gromos53a6.ff/aminoacids.vsd is in gromacs-data 4.5.5-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 | ; no CH3 groups - Gromos96 is a united atom forcefield
[ NH3 ]
NL C MNH3
NL CH1 MNH3
NL CH2 MNH3
[ NH2 ]
NT planar
NZ planar
NL C MNH3
NL CH1 MNH3
NL CH2 MNH3
; Data for generating dummy aromatic rings.
; Actually we dont need all these bonds and angles,
; but by specifying them here it is easier to improve
; the dummy generation code later.
[ PHE ]
CG CD1 0.139
CG CD2 0.139
CD1 CE1 0.139
CD2 CE2 0.139
CE1 CZ 0.139
CE2 CZ 0.139
CD1 HD1 0.109
CD2 HD2 0.109
CE1 HE1 0.109
CE2 HE2 0.109
CZ HZ 0.109
CG CD1 CE1 120.0
CD1 CE1 CZ 120.0
CE1 CZ CE2 120.0
CZ CE2 CD2 120.0
CE2 CD2 CG 120.0
CD2 CG CD1 120.0
CG CD1 HD1 120.0
CG CD2 HD2 120.0
HD1 CD1 CE1 120.0
CD1 CE1 HE1 120.0
HE1 CE1 CZ 120.0
CE1 CZ HZ 120.0
HZ CZ CE2 120.0
CZ CE2 HE2 120.0
HE2 CE2 CD2 120.0
HD2 CD2 CG 120.0
[ TYR ]
CG CD1 0.139
CG CD2 0.139
CD1 CE1 0.139
CD2 CE2 0.139
CE1 CZ 0.139
CE2 CZ 0.139
CD1 HD1 0.109
CD2 HD2 0.109
CE1 HE1 0.109
CE2 HE2 0.109
CZ OH 0.136
OH HH 0.100
CG CD1 CE1 120.0
CD1 CE1 CZ 120.0
CE1 CZ CE2 120.0
CZ CE2 CD2 120.0
CE2 CD2 CG 120.0
CD2 CG CD1 120.0
CG CD1 HD1 120.0
CG CD2 HD2 120.0
HD1 CD1 CE1 120.0
CD1 CE1 HE1 120.0
HE1 CE1 CZ 120.0
CE1 CZ OH 120.0
CZ OH HH 109.5
OH CZ CE2 120.0
CZ CE2 HE2 120.0
HE2 CE2 CD2 120.0
HD2 CD2 CG 120.0
[ TRP ]
CB CG 0.153
CG CD1 0.133
CD1 NE1 0.133
NE1 CE2 0.133
CE2 CD2 0.139
CD2 CG 0.139
CE2 CZ2 0.139
CZ2 CH2 0.139
CH2 CZ3 0.139
CZ3 CE3 0.139
CE3 CD2 0.139
CD1 HD1 0.109
NE1 HE1 0.100
CE3 HE3 0.109
CZ2 HZ2 0.109
CZ3 HZ3 0.109
CH2 HH2 0.109
CB CG CD1 126.0
CB CG CD2 126.0
CG CD1 NE1 108.0
CD1 NE1 CE2 108.0
NE1 CE2 CD2 108.0
CE2 CD2 CG 108.0
CD2 CG CD1 108.0
NE1 CE2 CZ2 132.0
CE2 CD2 CE3 120.0
CD2 CE2 CZ2 120.0
CE2 CZ2 CH2 120.0
CZ2 CH2 CZ3 120.0
CH2 CZ3 CE3 120.0
CZ3 CE3 CD2 120.0
CE3 CD2 CG 132.0
CG CD1 HD1 126.0
HD1 CD1 NE1 126.0
CD1 NE1 HE1 126.0
HE1 NE1 CE2 126.0
CZ3 CE3 HE3 120.0
HE3 CE3 CD2 120.0
CE2 CZ2 HZ2 120.0
HZ2 CZ2 CH2 120.0
CH2 CZ3 HZ3 120.0
HZ3 CZ3 CE3 120.0
CZ2 CH2 HH2 120.0
HH2 CH2 CZ3 120.0
[ HISA ]
CG ND1 0.133
ND1 CE1 0.133
CE1 NE2 0.133
NE2 CD2 0.133
CD2 CG 0.133
ND1 HD1 0.100
CG ND1 CE1 108.0
ND1 CE1 NE2 108.0
CE1 NE2 CD2 108.0
NE2 CD2 CG 108.0
CD2 CG ND1 108.0
CG ND1 HD1 126.0
HD1 ND1 CE1 126.0
[ HISB ]
CG ND1 0.133
ND1 CE1 0.133
CE1 NE2 0.133
NE2 CD2 0.133
CD2 CG 0.133
NE2 HE2 0.100
CG ND1 CE1 108.0
ND1 CE1 NE2 108.0
CE1 NE2 CD2 108.0
NE2 CD2 CG 108.0
CD2 CG ND1 108.0
CE1 NE2 HE2 126.0
HE2 NE2 CD2 126.0
[ HISH ]
CG ND1 0.133
ND1 CE1 0.133
CE1 NE2 0.133
NE2 CD2 0.133
CD2 CG 0.133
ND1 HD1 0.100
NE2 HE2 0.100
CG ND1 CE1 108.0
ND1 CE1 NE2 108.0
CE1 NE2 CD2 108.0
NE2 CD2 CG 108.0
CD2 CG ND1 108.0
CG ND1 HD1 126.0
HD1 ND1 CE1 126.0
CE1 NE2 HE2 126.0
HE2 NE2 CD2 126.0
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