Re: [gmx-users] error in umbrella sampling tutorial

2015-04-23 Thread HANNIBAL LECTER
http://lmgtfy.com/?q=There+is+a+dangling+bond+at+at+least+one+of+the+terminal+ends.+Fix+your+coordinate+file%2C+add+a+new+terminal+database+entry+(.tdb)%2C+or+select+the+proper+existing+terminal+entry
.

On Thu, Apr 23, 2015 at 8:47 AM, Ayesha Fatima ayeshafatima...@gmail.com
wrote:

 Dear Justin,
 I am learning to use the steered dynamics method implemented in
 gromacs. somehow your website is not accessible today so i cannot
 download the modified files of the fibrils for simulation. so i
 started withe the original file 2BEG.pdb and if i dont select the N
 and C termini modifications i get the error
 ...
 There is a dangling bond at at least one of the terminal ends. Fix
 your coordinate file, add a new terminal database entry (.tdb), or
 select the proper existing terminal entry.
 .

 Could you guide me through the issue?
 Thank you
 Regards
 Ayesha Fatima
 PhD candidate, UM, Malaysia
 --
 Gromacs Users mailing list

 * Please search the archive at
 http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before
 posting!

 * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists

 * For (un)subscribe requests visit
 https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or
 send a mail to gmx-users-requ...@gromacs.org.

-- 
Gromacs Users mailing list

* Please search the archive at 
http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting!

* Can't post? Read http://www.gromacs.org/Support/Mailing_Lists

* For (un)subscribe requests visit
https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a 
mail to gmx-users-requ...@gromacs.org.


Re: [gmx-users] error in umbrella sampling tutorial

2015-04-23 Thread Justin Lemkul



On 4/23/15 8:47 AM, Ayesha Fatima wrote:

Dear Justin,
I am learning to use the steered dynamics method implemented in
gromacs. somehow your website is not accessible today so i cannot


Server has been accessible all day; no idea why it wouldn't be working.


download the modified files of the fibrils for simulation. so i
started withe the original file 2BEG.pdb and if i dont select the N
and C termini modifications i get the error
...
There is a dangling bond at at least one of the terminal ends. Fix
your coordinate file, add a new terminal database entry (.tdb), or
select the proper existing terminal entry.
.

Could you guide me through the issue?


You can't sensibly choose none for terminal patching if there are no capping 
groups.  My coordinates have an acetyl cap on the N-terminus of each peptide, 
which is why this works.


-Justin

--
==

Justin A. Lemkul, Ph.D.
Ruth L. Kirschstein NRSA Postdoctoral Fellow

Department of Pharmaceutical Sciences
School of Pharmacy
Health Sciences Facility II, Room 629
University of Maryland, Baltimore
20 Penn St.
Baltimore, MD 21201

jalem...@outerbanks.umaryland.edu | (410) 706-7441
http://mackerell.umaryland.edu/~jalemkul

==
--
Gromacs Users mailing list

* Please search the archive at 
http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting!

* Can't post? Read http://www.gromacs.org/Support/Mailing_Lists

* For (un)subscribe requests visit
https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a 
mail to gmx-users-requ...@gromacs.org.