Re: [AMBER] 【AMBER12】Including water when using General Amber Force Field leaprc.gaff

From: ABEL Stephane 175950 <Stephane.ABEL.cea.fr>
Date: Sat, 19 Apr 2014 10:47:50 +0000

Hi,
Not sure, in your message I see that the fields for the water oxygen O are not well aligned.
HTH

--------------------------------------------------------------------
Stéphane Abel, Ph.D.
CEA Saclay DSV/IbItec-S/SB2SM & CNRS UMR 8221
Bat 528, Office 138C
Gif-sur-Yvette, F-91191 FRANCE
Phone (portable) : +33 6 49 37 70 60
________________________________________
De : 石坪江梨花 [13lb010p.rikkyo.ac.jp]
Envoyé : samedi 19 avril 2014 12:22
À : amber.ambermd.org
Objet : [AMBER] 【AMBER12】Including water when using General Amber Force Field leaprc.gaff

Dear all,

I have tried HOH for the residue name for water,


HETATM1 O HOH 1 -5.382 16.838 -57.659 1.00 0.00 O
HETATM2 H1 HOH 1 -4.602 17.179 -58.121 1.00 0.00 H
HETATM3 H2 HOH 1 -5.047 16.021 -57.260 1.00 0.00 H
END


but there was the following error .

-- residue 1: duplicate [ HO] atoms (total 3)
   Warning: Atom names in each residue should be unique.
     (Same-name atoms are handled by using the first
      occurrence and by ignoring the rest.
      Frequently duplicate atom names stem from alternate
      conformations in the PDB file.)
Unknown residue: number: 0 type: Terminal/last
..relaxing end constraints to try for a dbase match
  -no luck
Creating new UNIT for residue: sequence: 1
Created a new atom named: HO within residue: .R< 1>
  total atoms in file: 3
  The file contained 1 atoms not in residue templates

I'm really not sure what the problem is.

Please tell me how to modify it.
*Regards,*
Erika


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石坪 江梨花
立教大学 理学研究科化学専攻
博士課程前期課程 1年
理論創薬・分子設計 常盤研究室
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Email: 13lb010p.rikkyo.ac.jp
           erika.i.rikkyo.ac.jp
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Received on Sat Apr 19 2014 - 04:00:03 PDT
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