1 ; If you get a complaint about missing dummy types from pdb2gmx
2 ; is is straightforward to add it here.
3 ; First, determine the bonded atom type (for most forcefields except
4 ; opls it is probably identical to the nonbonded atomtype) for the
5 ; next atom bound to your N or C atom. Check the constrainttypes
6 ; section of the forcefield and determine which type of dummy mass
7 ; is used for an N (or C) bonded to that atomtype.
8 ; In the correct section below you can then add your atomtype
9 ; (not bonded atomtype!), the type of the bound heavy atom, and the
10 ; type of dummy mass to use in this case.
12 ; If the dummy is a planar NH2 group you should just write planar
13 ; after the N atomtype name.
14 ; N.B: dummy masses must have names beginning with MNH2* , MNH3* , MCH3*.
17 opls_135 opls_136 MCH3B
18 opls_135 opls_137 MCH3B
19 opls_135 opls_157 MCH3B
20 opls_135 opls_158 MCH3B
21 opls_135 opls_224B MCH3B
22 opls_135 opls_225B MCH3B
23 opls_135 opls_235 MCH3A
24 opls_135 opls_283 MCH3B
25 opls_135 opls_293B MCH3B
26 opls_135 opls_299 MCH3B
27 opls_135 opls_912B MCH3B
28 opls_209 opls_202 MCH3A
31 opls_287 opls_283 MNH3
32 opls_287 opls_292 MNH3
33 opls_287 opls_292B MNH3
34 opls_287 opls_293 MNH3
35 opls_287 opls_293B MNH3
36 opls_287 opls_298 MNH3
37 opls_287 opls_299 MNH3
43 opls_900 opls_906 MNH2
44 opls_900 opls_906B MNH2
45 opls_900 opls_912B MNH2
48 ; Data for generating dummy aromatic rings.
49 ; Actually we dont need all these bonds and angles,
50 ; but by specifying them here it is easier to improve
51 ; the dummy generation code later.
112 [ TRP ] ; angles from MD sim, corrected to be perfectly planar
158 [ HISD ] ; angles from MD sim, corrected to be perfectly planar
179 [ HISE ] ; angles from MD sim, corrected to be perfectly planar
200 [ HISH ] ; angles from MD sim, corrected to be perfectly planar