[From nobody Thu Nov 14 11:53:16 2013 MIME-Version: 1.0 To: <gmx-users@gromacs.org> Subject: =?utf-8?B?UnVubmluZyBNRCBvbiBhIGRpbWVyaWMgcHJvdGVpbg==?= From: "onetwo "<twoone21@rediffmail.com> Content-Type: multipart/alternative; boundary="=_c5f50129a4cc148f0d8c0dc087368b9f" --=_c5f50129a4cc148f0d8c0dc087368b9f Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="UTF-8" Hello Sir, I am simulating a protein which is a homodimer, when I did pdb2gmx, it generated a topolgy file in which there were two chain topologies for each chain as : ; Include chain topologies #include "topol_A.itp" #include "topol_B.itp" and in Compound section gave ; Compound #mols Protein_A 1 Protein_B 1 I want to ask that if it will consider the system as one or two different proteins. Also in production MD phase, in md.mdp file I mentioned Berendsen temperature coupling is on in two groups Tcoupl = V-rescale tc-grps = Protein Non-Protein tau_t = 0.1 0.1 ref_t = 300 300 I have this doubt that as I have given tc-grps as Protein and Non-Protein, so if "Protein" will consider both the chains of the protein or not. Thanks in advance Regards --=_c5f50129a4cc148f0d8c0dc087368b9f Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="UTF-8" Hello Sir,<br /> <br /> I am simulating a protein which is a homodimer, when I did pdb2gmx, it gene= rated a topolgy file in which there were two chain topologies for each cha= in as : <br /> <br /> ; Include chain topologies<br /> #include "topol_A.itp"<br /> #include "topol_B.itp" <br /> <br /> and in Compound section gave ;<br /> <br /> Compound #mols<br /> Protein_A 1<br /> Protein_B 1<br /> <br /> I want to ask that if it will consider the system as one or two different p= roteins.<br /> <br /> Also in production MD phase, in md.mdp file I mentioned<br /> <br /> Berendsen temperature coupling is on in two groups<br /> Tcoupl =3D V-rescale<br /> tc-grps =3D Protein Non-Protein<br /> tau_t =3D 0.1 0.1<br /> ref_t =3D 300 300<br /> <br /> I have this doubt that as I have given tc-grps as Protein and Non-Protein, = so if "Protein" will consider both the chains of the protein or not.<br /> <br /> Thanks in advance<br /> Regards<br><Table border=3D0 Width=3D644 Height=3D57 cellspacing=3D0 cellpa= dding=3D0 style=3D"font-family:Verdana;font-size:11px;line-height:15px;"><T= R><td><A HREF=3D"http://sigads.rediff.com/RealMedia/ads/click_nx.ads/www.re= diffmail.com/signatureline.htm@Middle?" target=3D"_blank"><IMG SRC=3D"http:= //sigads.rediff.com/RealMedia/ads/adstream_nx.ads/www.rediffmail.com/signat= ureline.htm@Middle"></A></td></TR></Table> --=_c5f50129a4cc148f0d8c0dc087368b9f--]