Re: [gmx-users] radius of gyration

2012-06-12 Thread delara aghaie
for example 530 ps instead of 1000 ps - Thanks again Regards D.M From: Justin A. Lemkul To: delara aghaie ; Discussion list for GROMACS users Sent: Monday, 11 June 2012, 18:01 Subject: Re: [gmx-users] radius of gyration On 6/11/12 9:28 AM

Re: [gmx-users] radius of gyration

2012-06-11 Thread Justin A. Lemkul
the terminal. -Justin Regards D.M *From:* Justin A. Lemkul *To:* delara aghaie ; Discussion list for GROMACS users *Sent:* Monday, 11 June 2012, 17:46 *Subject:* Re: [gmx-users] radius of gyration On 6/11/12 9

Re: [gmx-users] radius of gyration

2012-06-11 Thread delara aghaie
? Regards D.M From: Justin A. Lemkul To: delara aghaie ; Discussion list for GROMACS users Sent: Monday, 11 June 2012, 17:46 Subject: Re: [gmx-users] radius of gyration On 6/11/12 9:09 AM, delara aghaie wrote: > Dear Justin > My question can be related t

Re: [gmx-users] radius of gyration

2012-06-11 Thread Justin A. Lemkul
On 6/11/12 9:09 AM, delara aghaie wrote: Dear Justin My question can be related to both. Ok let me talk about the tutorial. The simulation has finished compeletly and log file and other outputs show the completion of 1 ns simulation. this is part of gyrate.xvg file I see: - @ s0 le

Re: [gmx-users] radius of gyration

2012-06-11 Thread delara aghaie
ed in? Thanks for your time Regards D.M From: Justin A. Lemkul To: delara aghaie ; Discussion list for GROMACS users Sent: Monday, 11 June 2012, 17:21 Subject: Re: [gmx-users] radius of gyration On 6/11/12 8:40 AM, delara aghaie wrote: >

Re: [gmx-users] radius of gyration

2012-06-11 Thread Justin A. Lemkul
On 6/11/12 8:40 AM, delara aghaie wrote: Dear Justin. Thanks for your explanation. In lyzozyme tutorial the radius of gyration has been plooted against simulation time (there 1000 ps). When I plot the same graph, the horizontal axis i

Re: [gmx-users] radius of gyration

2012-06-11 Thread delara aghaie
Sent: Monday, 11 June 2012, 14:46 Subject: Re: [gmx-users] radius of gyration On 6/11/12 5:20 AM, delara aghaie wrote: > Dear Gromacs users > I have a question abut radius of gyration in proteins. I want to calculate it > via MD simulation for calcium pump protein. Following the same

Re: [gmx-users] radius of gyration

2012-06-11 Thread Justin A. Lemkul
On 6/11/12 5:20 AM, delara aghaie wrote: Dear Gromacs users I have a question abut radius of gyration in proteins. I want to calculate it via MD simulation for calcium pump protein. Following the same method as described in justin lezozyme tutorial, we have dissolved the protein in water. I wan

[gmx-users] radius of gyration

2012-06-11 Thread delara aghaie
Dear Gromacs users I have a question abut radius of gyration in proteins. I want to calculate it via MD simulation for calcium pump protein. Following the same method as described in justin lezozyme tutorial, we have dissolved the protein in water. I want to know that is it wise to study this pa

[gmx-users] radius of gyration

2012-06-10 Thread delara aghaie
Dear Gromacs users I have a question abut radius of gyration in proteins. I want to calculate it via MD simulation for calcium pump protein. Following the same method as described in justin lezozyme tutorial, we have dissolved the protein in water. I want to know that is it wise to study this par

[gmx-users] radius of gyration

2012-05-08 Thread dina dusti
Dear Justin, Thank you very much from your response. Best Regards Dina From: Justin A. Lemkul To: dina dusti ; Discussion list for GROMACS users Sent: Wednesday, May 9, 2012 4:52 AM Subject: Re: [gmx-users] radius of gyration On 5/8/12 4:50 PM, dina

Re: [gmx-users] radius of gyration

2012-05-08 Thread Justin A. Lemkul
On 5/8/12 4:50 PM, dina dusti wrote: Dear Justin, Thank you very much from your help, but may I ask you to say me why the error estimate of Rg is very smaller than Rgx, Rgy, Rgz, Please? I didn't understand any thing from paper about this problem! The value of Rg is calculated from the (x,y

[gmx-users] radius of gyration

2012-05-08 Thread dina dusti
l To: dina dusti ; Discussion list for GROMACS users Sent: Wednesday, May 9, 2012 12:44 AM Subject: Re: [gmx-users] radius of gyration On 5/8/12 4:08 PM, dina dusti wrote: > Dear Justin, > > Thank you very much from your help. > Yes, the micelle was created after 100 ns from st

Re: [gmx-users] radius of gyration

2012-05-08 Thread Justin A. Lemkul
On 5/8/12 4:08 PM, dina dusti wrote: Dear Justin, Thank you very much from your help. Yes, the micelle was created after 100 ns from start of simulation. If the first procedure is true, so why the error estimate is so small and why the error estimate of Rg is so different with Rg(x,y,z)? Fo

[gmx-users] radius of gyration

2012-05-08 Thread dina dusti
Dear Justin, Thank you very much from your help. Yes, the micelle was created after 100 ns from start of simulation. If the first procedure is true, so why the error estimate is so small and why the error estimate of Rg is so different with Rg(x,y,z)? Please help me. Best Regards Dina -- gmx-us

Re: [gmx-users] radius of gyration

2012-05-08 Thread Justin A. Lemkul
On 5/8/12 1:06 PM, dina dusti wrote: Dear GROMACS Specialists, I have one question about radius of gyration for micelle, Please help me. My micelle is created at 10 ps by Martini CG force field. Does this mean that during the first 100 ns, there is no micelle? That is, it is only compl

[gmx-users] radius of gyration

2012-05-08 Thread dina dusti
Dear GROMACS Specialists, I have one question about radius of gyration for micelle, Please help me. My micelle is created at 10 ps by Martini CG force field. When I calculate the radius of gyration from this time as "g_gyrate -f 1.xtc -s 1.tpr -n 1.ndx -o gyrate.xvg -b 10" and "g_analyze

Re: [gmx-users] radius of gyration - compactness - accessible surface area

2011-06-21 Thread Tsjerk Wassenaar
You understand correctly. On Tue, Jun 21, 2011 at 11:35 AM, shahab shariati wrote: > Dear Tsjerk > > very thanks for your useful guidance. > > I now know that I should compare output of g_gyrate (containing Rg vs time) > by area.xvg output file of g_sas (containing area vs time). > > In area.xvg

[gmx-users] radius of gyration - compactness - accessible surface area

2011-06-21 Thread shahab shariati
Dear Tsjerk very thanks for your useful guidance. I now know that I should compare output of g_gyrate (containing Rg vs time) by area.xvg output file of g_sas (containing area vs time). In area.xvg output file, there are several columns: "Hydrophobic", "Hydrophilic" and "Total". for example in

Re: [gmx-users] radius of gyration - compactness - accessible surface area

2011-06-21 Thread Tsjerk Wassenaar
Hi Shahab, When comparing two variables, they have to share an axis. Time for instance... Cheers, Tsjerk On Tue, Jun 21, 2011 at 6:36 AM, shahab shariati wrote: > Dear Tsjerk > > thanks for your attention. > > larger radius of gyration, more surface. and smaller radius of > gyration, less sur

[gmx-users] radius of gyration - compactness - accessible surface area

2011-06-20 Thread shahab shariati
Dear Tsjerk thanks for your attention. larger radius of gyration, more surface. and smaller radius of gyration, less surface. I want to obtain solvent accessible surface area using g_sas. g_sas -f *.xtc -s *.tpr -n *.ndx -o -or -oa. I will obtain three output files containing: area.xvg, resar

[gmx-users] radius of gyration - compactness - accessible surface area

2011-06-20 Thread shahab shariati
Dear Tsjerk thanks for your attention. larger radius of gyration, more surface. and smaller radius of gyration, less surface. I want to obtain solvent accessible surface area using g_sas. g_sas -f *.xtc -s *.tpr -n *.ndx -o -or -oa. I will obtain three output files containing: area.xvg, resar

Re: [gmx-users] radius of gyration - compactness

2011-06-20 Thread Tsjerk Wassenaar
Hey Shahab, What's the contradiction? > [ Furthermore, INT–DBD appears less compact in the complex, as far as the > radius of gyration increases and more molecular surface is exposed to the > solvent (Table 1). ] larger radius of gyration, less compact, more surface > [ Furthermore, according t

[gmx-users] radius of gyration - compactness

2011-06-20 Thread shahab shariati
Dear all I am studying md simulation of free protein and protein-ligand and protein-dna complex. In my simulation systems, the average of radius of gyration in free protein is 2.31 and for protein in complex is 2.58. I know the radius of gyration is measurement of compactness of the protein as s

Re: [gmx-users] Radius of Gyration

2010-11-01 Thread Dmitri Dubov
Hi, C.. You wrote 1 ноября 2010 г., 22:09:36: > Does someone knows which equation is g_gyrate using to calculate the Rgx, Rgy, Rgz components of the Rg and which is the relation between them? I thougth that it was: Rg2=Rgx2+Rgy2+Rgz2, but at least for my results this is not the case. Sure,

[gmx-users] Radius of Gyration

2010-11-01 Thread C. Batistakis
Dear all Does someone knows which equation is g_gyrate using to calculate the Rgx, Rgy, Rgz components of the Rg and which is the relation between them? I thougth that it was: Rg2=Rgx2+Rgy2+Rgz2, but at least for my results this is not the case. Thanks a lot Chrysostomos -- gmx-user

Re: [gmx-users] Radius of gyration

2009-09-11 Thread Justin A. Lemkul
Johnny Lam wrote: Hi all, I am looking to equilibrate a peptide chain and I was wondering, is there any way or any command that I can input into gromacs to make the program output the radius of gyration data? Thanks a lot everyone! g_gyrate. -Justin --Johnny -- --

Re: [gmx-users] Radius of gyration

2009-09-11 Thread David van der Spoel
Johnny Lam wrote: Hi all, I am looking to equilibrate a peptide chain and I was wondering, is there any way or any command that I can input into gromacs to make the program output the radius of gyration data? Thanks a lot everyone! you can analyze the trajectory using g_gyrate, but mdrun can

[gmx-users] Radius of gyration

2009-09-11 Thread Johnny Lam
Hi all, I am looking to equilibrate a peptide chain and I was wondering, is there any way or any command that I can input into gromacs to make the program output the radius of gyration data? Thanks a lot everyone! --Johnny -- - Johnny Lam ISPE Ber

Re: [gmx-users] radius of gyration taking bound water into account

2007-06-22 Thread David van der Spoel
Fabrizio Mancinelli wrote: Dear users, in computing radius of gyration of a protein in water (g_gyrate), I have found values that are rather smaller than what found experimentally, maybe because bound water isn't taken into account within g_gyrate routine. Is there any way to overcome this lim

[gmx-users] radius of gyration taking bound water into account

2007-06-22 Thread Fabrizio Mancinelli
Dear users, in computing radius of gyration of a protein in water (g_gyrate), I have found values that are rather smaller than what found experimentally, maybe because bound water isn't taken into account within g_gyrate routine. Is there any way to overcome this limitation? Thanks in advance,