Hi Li,
The issue seems to be, at least in my trial of nocenter, that solvating the
system mandates centering of coordinates, which is probably a smart thing
to do for writing down coordinates during MD. If I don't solvate the
system, this works for me.
A quick grep'ing of the leap source files didn't get me far fast and I'm a
bit busy to spend too much time sorting this out for you. I'd recommend
first deciding whether this is the only solution to your problem - is this
important for your MD or your analysis? If the latter, then check out
cpptraj.
Hope this helps,
Kevin
On Thu, Jan 16, 2014 at 12:56 AM, 肖立 <xiaoli19871216.gmail.com> wrote:
> Hi, Kevin:
> The leap log is posted as below. There 8720 atoms in reference1.pdb.
> After I saved the reference.pdb file, I found the coordinates of the
> protein atoms didn't match the original one. I use vi to look at it.
> Thanks a lot!
> Li
>
>
>
> > source leaprc.ff99SB
> ----- Source: /home/zhengshl/amber12_clean/
> dat/leap/cmd/leaprc.ff99SB
> ----- Source of /home/zhengshl/amber12_clean/dat/leap/cmd/leaprc.ff99SB
> done
> Log file: ./leap.log
> Loading parameters: /home/zhengshl/amber12_clean/dat/leap/parm/parm99.dat
> Reading title:
> PARM99 for DNA,RNA,AA, organic molecules, TIP3P wat. Polariz.& LP
> incl.02/04/99
> Loading parameters:
> /home/zhengshl/amber12_clean/dat/leap/parm/frcmod.ff99SB
> Reading force field modification type file (frcmod)
> Reading title:
> Modification/update of parm99.dat (Hornak & Simmerling)
> Loading library:
> /home/zhengshl/amber12_clean/dat/leap/lib/all_nucleic94.lib
> Loading library: /home/zhengshl/amber12_clean/dat/leap/lib/all_amino94.lib
> Loading library:
> /home/zhengshl/amber12_clean/dat/leap/lib/all_aminoct94.lib
> Loading library:
> /home/zhengshl/amber12_clean/dat/leap/lib/all_aminont94.lib
> Loading library: /home/zhengshl/amber12_clean/dat/leap/lib/ions94.lib
> Loading library: /home/zhengshl/amber12_clean/dat/leap/lib/solvents.lib
> > prot = loadpdb "reference1.pdb"
> Loading PDB file: ./reference1.pdb
> total atoms in file: 8720
> > set default nocenter on
> > solvateoct prot TIP3PBOX 12.0
> Scaling up box by a factor of 1.255061 to meet diagonal cut criterion
> Solute vdw bounding box: 69.478 103.715 52.311
> Total bounding box for atom centers: 133.836 133.836 133.836
> (box expansion for 'iso' is 118.2%)
> Solvent unit box: 18.774 18.774 18.774
> Volume: 1225713.857 A^3 (oct)
> Total mass 675848.382 amu, Density 0.916 g/cc
> Added 33943 residues.
> > addions prot Na+ 0
> 25 Na+ ions required to neutralize.
> Adding 25 counter ions to "prot" using 1A grid
> Grid extends from solute vdw + 5.53 to 11.63
> Resolution: 1.00 Angstrom.
> grid build: 0 sec
> Solvent present: replacing closest with ion
> when steric overlaps occur
> Calculating grid charges
> charges: 17 sec
> (Replacing solvent molecule)
> Placed Na+ in prot at (-21.22, 4.42, -9.62).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-9.20, 11.70, -20.17).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-26.68, 19.60, -6.85).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-41.19, 21.79, 0.52).
> (Replacing solvent molecule)
> Placed Na+ in prot at (4.70, 16.43, -7.06).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-40.13, 15.14, 11.12).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-13.28, -1.54, -37.24).
> (Replacing solvent molecule)
> Placed Na+ in prot at (19.05, 10.84, -23.09).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-2.00, 18.40, -25.85).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-45.90, 29.65, 20.28).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-22.90, 26.41, -2.11).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-17.23, -14.05, -10.60).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-14.92, 6.37, -14.64).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-33.74, 34.08, 11.16).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-50.89, 10.81, 17.10).
> (Replacing solvent molecule)
> Placed Na+ in prot at (5.55, 21.08, -14.08).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-22.76, -16.18, -23.07).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-19.07, 16.89, 32.90).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-36.53, 32.25, -3.80).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-6.60, 0.52, -43.64).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-47.39, 15.43, 30.08).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-14.92, 29.74, -14.26).
> (Replacing solvent molecule)
> Placed Na+ in prot at (32.60, -26.37, -20.84).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-51.34, 21.77, 3.87).
> (Replacing solvent molecule)
> Placed Na+ in prot at (-21.96, -10.47, -35.32).
>
> Done adding ions.
> > savepdb prot reference.pdb
> Writing pdb file: reference.pdb
> Converting N-terminal residue name to PDB format: NASN -> ASN
> Converting C-terminal residue name to PDB format: CPHE -> PHE
>
>
> On Wed, Jan 15, 2014 at 7:07 PM, Kevin Hauser <84hauser.gmail.com> wrote:
>
> > Hi Li,
> >
> > Can you post your leap.log, please? How many atoms is your
> > "reference1.pdb"? And just to be clear, the actual coordinates of the
> atoms
> > in reference1.pdb are different from those printed by leap, right? It's
> not
> > that VMD has zoomed out since your system is much larger now, right?
> >
> > Kevin
> >
> >
> > On Wed, Jan 15, 2014 at 6:24 PM, 肖立 <xiaoli19871216.gmail.com> wrote:
> >
> > > It still shows the change of the position of protein.
> > > Thank you
> > > Li
> > >
> > >
> > > On Wed, Jan 15, 2014 at 3:17 PM, Jio M <jiomm.yahoo.com> wrote:
> > >
> > > > Hi Li,
> > > >
> > > > > source leaprc.ff99SB
> > > > > prot = loadpdb "reference1.pdb"
> > > > > addions prot Na+ 0
> > > > > set default nocenter on
> > > > > solvateoct prot TIP3PBOX 12.0
> > > > > savepdb prot reference.pdb
> > > >
> > > >
> > > > a vague thingy, try adding ions after water?
> > > > solvateoct prot TIP3PBOX 12.0
> > > >
> > > > addions prot Na+ 0
> > > >
> > > >
> > > >
> > > >
> > > > On Wednesday, January 15, 2014 10:54 PM, 肖立 <
> xiaoli19871216.gmail.com>
> > > > wrote:
> > > >
> > > > I changed to another computer which have this option so there is no
> > error
> > > > message this time. But I still have that issue when using the
> > solvatebox
> > > > since the position of the protein is changed.
> > > > Thank you
> > > > Li
> > > >
> > > >
> > > > On Wed, Jan 15, 2014 at 2:04 PM, David A Case <
> > case.biomaps.rutgers.edu
> > > > >wrote:
> > > >
> > > > > On Wed, Jan 15, 2014, 肖立 wrote:
> > > > >
> > > > > > > > set default nocenter on
> > > > > > > > can't parse nocenter
> > > > >
> > > > > It looks like you need to update your version of AmberTools. Go to
> > > > > $AMBERHOME and re-run the configure script, then type "make
> install"
> > > > >
> > > > > ...dac
> > > > >
> > > > > _______________________________________________
> > > > > AMBER mailing list
> > > > > AMBER.ambermd.org
> > > > > http://lists.ambermd.org/mailman/listinfo/amber
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Li Xiao
> > > > University of California, Irvine
> > > > Email: xiaoli19871216.gmail.com
> > > >
> > > > _______________________________________________
> > > > AMBER mailing list
> > > > AMBER.ambermd.org
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> > > > _______________________________________________
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> > > > http://lists.ambermd.org/mailman/listinfo/amber
> > > >
> > >
> > >
> > >
> > > --
> > > Li Xiao
> > > University of California, Irvine
> > > Email: xiaoli19871216.gmail.com
> > > _______________________________________________
> > > AMBER mailing list
> > > AMBER.ambermd.org
> > > http://lists.ambermd.org/mailman/listinfo/amber
> > >
> >
> >
> >
> > --
> > -- - -
> > HK
> >
> >
> > ════════════════════════════════════════════
> > Kevin E. Hauser, Ph.D. Candidate
> > NRSA Fellow, National Institutes of Health
> > Carlos Simmerling Laboratory
> > Miguel Garcia-Diaz Laboratory
> > 100 Laufer Center for Physical and Quantitative Biology
> > Stony Brook, New York 11794-5252
> > Phone: (631) 632.5394 Email: 84hauser.gmail.com
> > ════════════════════════════════════════════
> >
> >
> >
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>
>
> --
> Li Xiao
> University of California, Irvine
> Email: xiaoli19871216.gmail.com
>
> _______________________________________________
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>
>
--
-- - -
HK
════════════════════════════════════════════
Kevin E. Hauser, Ph.D. Candidate
NRSA Fellow, National Institutes of Health
Carlos Simmerling Laboratory
Miguel Garcia-Diaz Laboratory
100 Laufer Center for Physical and Quantitative Biology
Stony Brook, New York 11794-5252
Phone: (631) 632.5394 Email: 84hauser.gmail.com
════════════════════════════════════════════
******************************************************************************
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is for the sole use of the intended recipient(s) and may
contain confidential and privileged information.
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by e-mail and destroy all copies of the original.
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Received on Sun Jan 19 2014 - 22:30:02 PST
