Hello,

Hi
I am Purushotham
I am using X-plore for structural refinement using RDC, I have passing
problem regarding how to start? and how to use it? please kindly help me in
this regard.


On Tue, Apr 2, 2013 at 3:26 AM, <xplor-nih-request at nmr.cit.nih.gov> wrote:

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> Today's Topics:
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>    1. Re: adding cis Proline in water refinment (Richard Harris)
>    2. XPLOR problem (Allison Didychuk)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 1 Apr 2013 16:07:35 +0000
> From: Richard Harris <richard.harris at einstein.yu.edu>
> Subject: Re: [Xplor-nih] adding cis Proline in water refinment
> To: Charles Schwieters <charles at schwieters.org>
> Cc: "xplor-nih at nmr.cit.nih.gov" <xplor-nih at nmr.cit.nih.gov>
> Message-ID:
>         <
> 7BB704B92F102A4C86305311C23C6F50243B7FBA at YUWEXCPM11.yuad.uds.yu.edu>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi Charles
>
> Thanks for the quick fix - that's done the job.
>
> cheers
> Richard
>
> ________________________________________
> From: Charles Schwieters [charles at schwieters.org]
> Sent: Monday, April 01, 2013 11:37 AM
> To: Richard Harris
> Cc: xplor-nih at nmr.cit.nih.gov
> Subject: Re: [Xplor-nih] adding cis Proline in water refinment
>
> Hello Richard--
>
> >
> > I'm trying to include a cisProline in water refinement calculations -
> > I'm
> > using a modified version of the script found in
> > eginput/gb1_rdc/wrefine.py.
> > In earlier posts on this matter its suggested that there are two ways
> > of
> > doing this:
> >
> > 1) load a pre-generated PSF using protocol.initStruct, and then load
> >     the structure with protocol.initCoords instead of
> > protocol.loadPDB.
>
> This will not work unless, in generating your psf, you use the water
> refinement topology files as specified in wrefine.py. A psf generated
> using standard Xplor-NIH topology settings will not work with water
> refinement.
>
>
> >
> >  2) load the structure with protocol.loadPDB, and then correct the PSF
> >     information using psfGen.cisPeptide.
> >
> > In the script I have:
> > import psfGen
> > protocol.loadPDB(inputStructures[0],deleteUnknownAtoms=True)
> > psfGen.cisPeptide(110)
>
> Unfortunately, the definition of the ``patch'' differs between
> standard Xplor-NIH topologies and those used for water refinement. The
> only way to do this on the fly here is to call the old XPLOR command
>
> xplor.command('''
> patch CIPP reference=nil=(resid XX)
> ''')
>
> replacing XX with the appropriate residue number. psfGen.cisPeptide
> should be fixed to give a more appropriate error message.
>
> best regards--
> Charles
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 01 Apr 2013 16:56:11 -0500
> From: Allison Didychuk <didychuk at wisc.edu>
> Subject: [Xplor-nih] XPLOR problem
> To: xplor-nih at nmr.cit.nih.gov
> Message-ID: <76b0d26f1dbaa1.5159bc2b at wiscmail.wisc.edu>
> Content-Type: text/plain; charset="iso-8859-1"
>
> ?Hello,
>
> ?I'm having trouble using an XPLOR script that you originally gave to
> Jordan Burke to refine the structure of an RNA using data from SAXS, RDCs,
> and minimal additional NMR data. Have you ever encountered this error
> before?
>
>
> ?This is the end of the log file:
>
> ?X-PLOR>
> ?X-PLOR>end
> ?[stdin](428): protocol.initDynamics(dyn,
> ?[stdin](429): initVelocities=1,
> ?[stdin](430): bathTemp=init_t,
> ?[stdin](431): potList=potList,
> ?[stdin](432): numSteps=10000,
> ?[stdin](433): finalTime=10)
> ?[stdin](434): dyn.run()
> ?HBONDS: allocating space for 2025 h-bond interactions.
> ?HBONDS: 0 distance exclusions and 0 angle exclusions
> ?HBONDS: 205918 fixed h-bonds, currently 0 h-bonds present
> ?HBONDS: allocating space for 2025 h-bond interactions.
> ?HBONDS: ran out of space. Starting over.
> ?HBONDS: allocating space for 4050 h-bond interactions.
> ?HBONDS: 200042 distance exclusions and 3334 angle exclusions
> ?HBONDS: 0 fixed h-bonds, currently 2542 h-bonds present
> ?MAKINB: mode 3 found 0 exclusions, 0 interactions(1-4) and 0 GB exclusions
> ?MAKINB: mode 3 found 8922 exclusions, 0 interactions(1-4) and 8922 GB
> exclusions
> ?HEAP: maximum use=440784760 current use=436363876
> ?X-PLOR: total CPU time= 3398.3701 s
> ?X-PLOR: entry time at 17:05:14 28-Mar-13
> ?X-PLOR: exit time at 18:06:20 28-Mar-13
>
> I've attached my script. When I comment out the dynamics step before the
> anneal, the last part of the log file is:
>
> AT_Build::buildNode: cycle link found between atoms 2808 GUA 88 C3' and
> 2784 GUA 88 C4'
>  removing bond.
> AT_Build::buildNode: cycle link found between atoms 2834 GUA 89 C5 and
> 2824 GUA 89 C4
>  removing bond.
> AT_Build::buildNode: cycle link found between atoms 2836 GUA 89 C8 and
> 2823 GUA 89 N9
>  removing bond.
> AT_Build::buildNode: cycle link found between atoms 2842 GUA 89 C3' and
> 2818 GUA 89 C4'
>  removing bond.
> AT_Build::buildNode: cycle link found between atoms 2858 CYT 90 C6 and
> 2857 CYT 90 N1
>  removing bond.
> AT_Build::buildNode: cycle link found between atoms 2873 CYT 90 C3' and
> 2852 CYT 90 C4'
>  removing bond.
>  HBONDS: allocating space for 2025 h-bond interactions.
>  HBONDS: 0 distance exclusions and 0 angle exclusions
>  HBONDS: 205918 fixed h-bonds, currently 0 h-bonds present
>  HBONDS: allocating space for 2025 h-bond interactions.
>  HBONDS: ran out of space. Starting over.
>  HBONDS: allocating space for 4050 h-bond interactions.
>  HBONDS: 200042 distance exclusions and 3334 angle exclusions
>  HBONDS: 0 fixed h-bonds, currently 2542 h-bonds present
>  MAKINB: mode 3 found 0 exclusions, 0 interactions(1-4) and 0 GB exclusions
>  MAKINB: mode 3 found 8922 exclusions, 0 interactions(1-4) and 8922 GB
> exclusions
>  HEAP: maximum use=440784760 current use=436363876
>  X-PLOR: total CPU time= 3326.4299 s
>  X-PLOR: entry time at 19:25:21 31-Mar-13
>  X-PLOR: exit time at 20:25:07 31-Mar-13
>
>
> If you have any suggestions on how to fix this, that would be great! Thank
> you!
>
>
> Allison Didychuk
> Butcher Lab
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-- 
*P.Purushotham Reedy
*
* NMR division,IICT.
*
* *
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