Re: [gmx-users] Using GROMACS to find the net charge on a Protein

2014-09-12 Thread donna
Dear Agnivo Regarding your inquiry: there is an online tool to determine the pka value of a protein (of its aminoacids) if you have the pdb file of your protein The program is Propka see it at internet ,( See the paper Very Fast Empirical Prediction and Rationalization of Protein pKa

[gmx-users] Using GROMACS to find the net charge on a Protein

2014-09-09 Thread Agnivo Gosai
Dear Users I am trying to find the net charge at the physiological pH value for a protein molecule (Thrombin) in my case and am wondering if it is possible to use GROMACS for doing it. I am very new to GROMACS and at present I have been going through the tutorials by Dr. Lemkul. I have seen that

Re: [gmx-users] Using GROMACS to find the net charge on a Protein

2014-09-09 Thread Justin Lemkul
On 9/9/14 3:51 PM, Agnivo Gosai wrote: Dear Users I am trying to find the net charge at the physiological pH value for a protein molecule (Thrombin) in my case and am wondering if it is possible to use GROMACS for doing it. I am very new to GROMACS and at present I have been going through

Re: [gmx-users] Using GROMACS to find the net charge on a Protein

2014-09-09 Thread João Henriques
Quick answer is no. In fact, that's really not what (standard) molecular dynamics is for. You need a constant-pH MD method for that. Read this to get a bit more acquainted with the subject (might be overkill for you, because I doubt this is what you want/need):