sunny mishra wrote:
No. But in order to do that with lipid.gro what co-ordinates should I have to take?


I think you need to differentiate between "coordinates" and "box vectors." You should center the molecule in the box (defined by the vectors in the last line of the .gro file). I assumed you were specifying these box vectors with -box.

So, for both the protein and the lipid coordinate files, you need to use

editconf -c -box (x, y, z from .gro file)

-Justin

On Thu, Oct 29, 2009 at 4:40 PM, Justin A. Lemkul <[email protected] <mailto:[email protected]>> wrote:



    sunny mishra wrote:

        okk...here are the commands which I am givng...

        editconf -f 1SU4_cleancg_trans.gro -o 1SU4_newbox.gro -c -box
        13.29820 13.29820 6.59160

        I get the 1SU4_newbox.gro which has co-ordinates 13.29820
        13.29820 6.59160


    Have you done the same with lipid.gro?  If the protein and the lipid
    are in different coordinate systems (i.e., lipid.gro centered at the
    origin and protein centered within the box, which has its corner
    placed at the origin) then you will have a problem.

    -Justin

        cat 1SU4_newbox.gro lipid.gro > system..gro

        Now here system.gro also has co-ordinates 13.29820 13.29820 6.59160

        now inflategro:

        inflategro system.gro 4 DSPC 14 -o inflated_bilayer.gro 5

        Now when i visualize my output file in VMD then protein and
        lipid are seperated and even after i scale it to .95 they dnt
        meet....they are still apart, I was hoping that lipid will be
        scaled and protein shud have remained in the center of the lipid
        but that doesn't happen. I hope you got my question

        On Thu, Oct 29, 2009 at 4:25 PM, Justin A. Lemkul
        <[email protected] <mailto:[email protected]>
        <mailto:[email protected] <mailto:[email protected]>>> wrote:



           sunny mishra wrote:

               Yes I did the same and when I see my system.gro file it
        gives me
               the dimensions of the protein box half of the lipid
        bilayer box
               so that means it should now be set in the center of the lipid
               bilayer. But after


           I don't understand what you mean.


               that when I run the inflategro script and see my output
        file the
               protein and lipid are separated and I dnt know why?


           Can you post the actual commands you're using?

           -Justin


           --    ========================================

           Justin A. Lemkul
           Ph.D. Candidate
           ICTAS Doctoral Scholar
           Department of Biochemistry
           Virginia Tech
           Blacksburg, VA
           jalemkul[at]vt.edu <http://vt.edu> <http://vt.edu> | (540)
        231-9080

           http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

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-- ========================================

    Justin A. Lemkul
    Ph.D. Candidate
    ICTAS Doctoral Scholar
    Department of Biochemistry
    Virginia Tech
    Blacksburg, VA
    jalemkul[at]vt.edu <http://vt.edu> | (540) 231-9080
    http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

    ========================================
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--
========================================

Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

========================================
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