Re: [gmx-users] Residue not found in topology

2018-08-23 Thread Justin Lemkul
On 8/23/18 8:12 AM, Amir Zeb wrote: Thanks Justin, I have followed what did you suggest for .rtp entry in merged.rtp file of charmm36 ff. But i could not make .hdb file for ALY. Where can i find the H-information for ALY to insert them in merged.hdb file of charmm36 ff? Look at existing

Re: [gmx-users] Residue not found in topology

2018-08-23 Thread Amir Zeb
Thanks Justin, I have followed what did you suggest for .rtp entry in merged.rtp file of charmm36 ff. But i could not make .hdb file for ALY. Where can i find the H-information for ALY to insert them in merged.hdb file of charmm36 ff? Amir On Thu, Aug 23, 2018, 9:02 PM Justin Lemkul wrote: > >

Re: [gmx-users] Residue not found in topology

2018-08-23 Thread Justin Lemkul
On 8/23/18 7:52 AM, Bratin Kumar Das wrote: Hi You can see that only the problem is coming from hydrogen. So in pdb2gmx command use -ignh so that it ignores the hydrogen. If you use this this WARNING will not come. That's not true. The -ignh option ignores H atoms in the input

Re: [gmx-users] Residue not found in topology

2018-08-23 Thread Justin Lemkul
On 8/23/18 6:30 PM, Amir Zeb wrote: Thanks Justin, Actually I used Parachem CGenFF server https://cgenff.umaryland.edu/ and generated the parameters for KAC. Do not generate parameters in this way. You will have a mixture of highly optimized protein parameters for all other residues,

Re: [gmx-users] Residue not found in topology

2018-08-23 Thread Bratin Kumar Das
Hi You can see that only the problem is coming from hydrogen. So in pdb2gmx command use -ignh so that it ignores the hydrogen. If you use this this WARNING will not come. On Fri, Aug 24, 2018 at 4:00 AM, Amir Zeb wrote: > Thanks Justin, > > Actually I used Parachem CGenFF server

Re: [gmx-users] Residue not found in topology

2018-08-23 Thread Amir Zeb
Thanks Justin, Actually I used Parachem CGenFF server https://cgenff.umaryland.edu/ and generated the parameters for KAC. The merged.rtp file was modified by adding the KAC parameters That issue fixed, but now I'm getting the following warning which ultimately results in fatal error. WARNING:

Re: [gmx-users] Residue not found in topology

2018-08-22 Thread Justin Lemkul
On 8/22/18 5:26 AM, Bratin Kumar Das wrote: Hi In your tool.top file the particular lys molecule residue name you have to modify. Then it will work..Actually grompp can't find the molecule in the topology. The error has nothing to do with grompp. The topology was never created because

Re: [gmx-users] Residue not found in topology

2018-08-22 Thread Bratin Kumar Das
Hi In your tool.top file the particular lys molecule residue name you have to modify. Then it will work..Actually grompp can't find the molecule in the topology. On Wed 22 Aug, 2018, 2:53 PM Bratin Kumar Das, <177cy500.bra...@nitk.edu.in> wrote: > Hi > In your tool.top file the

Re: [gmx-users] Residue not found in topology

2018-08-22 Thread Bratin Kumar Das
Hi In your tool.top file the particular lys molecule residue name you have to modify. Then it will work..Actually grompp can't find the molecule in the topology. On Wed 22 Aug, 2018, 11:35 AM Amir Zeb, wrote: > Hi gromacs users, > > I want to simulate a protein where one of the lysine