[AMBER] For atom: .R<Na+ 1525>.A<Na+ 1> Could not find type: Na+

From: Jorgen Simonsen <jorgen589.gmail.com>
Date: Sun, 25 Jul 2010 19:45:27 +0200

Hi

I am trying to neutralize my protein complex by adding Na+ ions to it

addions COM Na+ 0

which seems to do the right thing

Calculating grid charges
charges: 242 sec
(No solvent overlap)
Placed Na+ in COM at (24.80, -2.21, 25.46).
(No solvent overlap)

when I want to same the prmtop and inpcrd it gives me the following error

Checking Unit.
Building topology.
Building atom parameters.
For atom: .R<Na+ 1525>.A<Na+ 1> Could not find type: Na+

the libraries loaded are

Loading parameters: /amber10/dat/leap/parm/parm10.dat
Reading title:
PARM99 + frcmod.ff99SB + frcmod.parmbsc0
Loading library: /amber10/dat/leap/lib/all_amino10.lib
Loading library: /amber10/dat/leap/lib/all_aminoct10.lib
Loading library: /amber10/dat/leap/lib/all_aminont10.lib
Loading library: /amber10/dat/leap/lib/all_nucleic10.lib
Loading library: /amber10/dat/leap/lib/ions08.lib
Loading library: /amber10/dat/leap/lib/solvents.lib

so I thought that I should have loaded everything - if I try desc Na+ it
returns the following
UNIT name: Na+
Head atom: null
Tail atom: null
Contents:
R<Na+ 1>

which seem to be ok - any suggestions how to fix this ?
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Received on Sun Jul 25 2010 - 11:00:03 PDT
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