Re: [AMBER] question on antechamber generating parameters for a charged ligand

From: case <case.biomaps.rutgers.edu>
Date: Fri, 25 Nov 2011 12:14:37 -0500

On Fri, Nov 25, 2011, fn1.rice.edu wrote:

> antechamber -i GTG-align_h.pdb -fi pdb -o gtg.mol2 -fo mol2 -c bcc -nc -s -2
                                                                    ^^^^^

This is wrong: the "-nc" flag needs an argument, giving the net charge, such
as "-nc -1". Note: antechamber does *not* try to figure out the net charge on
the molecule; rather, the user has to provide that (default is zero).

> >> 7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-GUANOSINE

My "guess" is that the net charge is -2 (+1 for the methyl-guanosine, -3 for
the three phosphate groups. But check this yourself.

....dac


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Received on Fri Nov 25 2011 - 09:30:03 PST
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