Interesting. I can't see why that wouldn't be possible in theory, but there is a part of the code that would need rewriting, however.

Erik

Nilesh Dhumal skrev 2011-04-12 04.11:
I tried to use contact and -da together with following  command

g_hbond -f 3.trr -s 3.tpr -n hbond19.ndx -nonitacc   -noda   -r 0.5
-contact   -num

I am getting following error.

Fatal error:Can not analyze contact between H and A: turn off -noda

Nilesh



On Mon, April 11, 2011 5:05 pm, Nilesh Dhumal wrote:
Is it possible to find number of hydrogen bonds using g_hbond by
considering the distance between Acceptor-hydrogen instead of the distance
  between Acceptor-Donor atoms.

Nilesh


On Mon, April 11, 2011 3:32 pm, Erik Marklund wrote:

Try the -contact option.



Erik




Nilesh Dhumal skrev 2011-04-11 17.12:


Is there any way to specify clorin and florin atoms as a receptor.



Nilesh



On Mon, April 11, 2011 11:08 am, Justin A. Lemkul wrote:


Nilesh Dhumal wrote:



Hello,




I am trying to calculate number of hydrogen bond (O-H---CL)in my
system.

I use the following command





g_hbond -f 3.trr -s 3.tpr -n hbond18.ndx -nonitacc -num


Output file hbnum.xvg shows zero number of hydorgen bond.




Can you tell me why its showing zero no.




A strong peak is found in rdf between H and CL at 2.0 A.




Chlorine is not considered a receptor in g_hbond.




-Justin




I am using Gromacs 4.0.7 version.






Nilesh







--
========================================




Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin




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Erik Marklund, PhD student
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