Hi,

In case you want the "bonds" to be dynamic I think the only way is to use 
tabulated interactions. A bit tedious to set up, but doable. Note that this 
will NOT emulate angles or dihedrals, just the stretching term. I can't 
understand why you would want bonds between all atoms within a certain 
distance, however, and I hope you know what you're doing.

Erik
 
25 aug 2012 kl. 06.54 skrev mohan maruthi sena:

> Hi all,
>           I want build a toplogy for a protein , for which , each and
> every atom  has to  make bonds with other atoms with in certain
> specified cut-off distance. How can i do this ?
> 
> Please suggest me a way,
> 
> 
> Thanks in advance,
> Mohan
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-----------------------------------------------
Erik Marklund, PhD
Dept. of Cell and Molecular Biology, Uppsala University.
Husargatan 3, Box 596,    75124 Uppsala, Sweden
phone:    +46 18 471 6688        fax: +46 18 511 755
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