modeller_usage November 2011

modeller_usage@salilab.org

14 participants
27 discussions

Re: [modeller_usage] modeller_usage Digest, Vol 10, Issue 136
by Ashish Runthala 02 Nov '11

02 Nov '11

Dear Sir, No need to manual compilation of pooling of models in single PDB file. You can use linux with a simple bash script. cat *.pdb > Single.pdb Then you may end MODEL and ENDMDL manually or you can also write a for loop to automatically append these strings on ends of every single PDB file called. Ashish Runthala, Lecturer, Structural Biology Cell, Biological Sciences Group, BITS, Pilani Rajasthan, INDIA ----- Original Message ----- From: "modeller usage-request" <modeller_usage-request(a)salilab.org> To: "modeller usage" <modeller_usage(a)salilab.org> Sent: Wednesday, November 2, 2011 12:57:24 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi Subject: modeller_usage Digest, Vol 10, Issue 136 Send modeller_usage mailing list submissions to modeller_usage(a)salilab.org To subscribe or unsubscribe via the World Wide Web, visit https://salilab.org/mailman/listinfo/modeller_usage or, via email, send a message with subject or body 'help' to modeller_usage-request(a)salilab.org You can reach the person managing the list at modeller_usage-owner(a)salilab.org When replying, please edit your Subject line so it is more specific than "Re: Contents of modeller_usage digest..." Today's Topics: 1. automodel.max_molpdf recommended values and usage format (Andrew Voronkov) 2. Re: Build a model with multiple models (Modeller Caretaker) 3. Re: automodel.max_molpdf recommended values and usage format (Modeller Caretaker) 4. flexible ligand parametrization using nonstd_restraints(aln) (Andrew Voronkov) ---------------------------------------------------------------------- Message: 1 Date: Tue, 01 Nov 2011 21:28:48 +0400 From: Andrew Voronkov <drugdesign(a)yandex.ru> Subject: [modeller_usage] automodel.max_molpdf recommended values and usage format To: modeller_usage(a)salilab.org Message-ID: <175671320168528(a)web127.yandex.ru> Content-Type: text/plain Dear Modeller users, how on your opinion modeller objective function correlates with quality of the models. For example I have objective function value 1730 for one modelk and -750 which as I understand reflects free energy. Does it mean that I shouldn t consider the first one at all? Let's say I want to make cutoff -100 for the objective function. In which format it should be done? automodel.max_molpdf -100 is that correct? Sincerely yours, Andrey ------------------------------ Message: 2 Date: Tue, 01 Nov 2011 11:47:21 -0700 From: Modeller Caretaker <modeller-care(a)salilab.org> Subject: Re: [modeller_usage] Build a model with multiple models To: junior <sam.kauba(a)gmail.com> Cc: modeller_usage(a)salilab.org Message-ID: <4EB03EB9.80204(a)salilab.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 10/31/2011 07:16 AM, junior wrote: > How do I build a PDB file containing more than 10 models? If you really mean you want to make a single PDB file containing multiple models (which the PDB format allows, with a MODEL record at the start of each model and an ENDMDL record at the end) then you can't do that with MODELLER, for any number of models (10 or otherwise). The models produced by MODELLER are each in their own PDB file. If you simply want to make more than 10 models, each in a *different* PDB file, then go with Mensur's suggestions. If you really want a single PDB file containing multiple models, you will have to first produce multiple PDB files, then stick them together manually, inserting MODEL and ENDMDL records, either with a text editor or with some simple scripting. Ben Webb, Modeller Caretaker -- modeller-care(a)salilab.org http://www.salilab.org/modeller/ Modeller mail list: http://salilab.org/mailman/listinfo/modeller_usage ------------------------------ Message: 3 Date: Tue, 01 Nov 2011 11:55:27 -0700 From: Modeller Caretaker <modeller-care(a)salilab.org> Subject: Re: [modeller_usage] automodel.max_molpdf recommended values and usage format To: Andrew Voronkov <drugdesign(a)yandex.ru> Cc: modeller_usage(a)salilab.org Message-ID: <4EB0409F.8050901(a)salilab.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/01/2011 10:28 AM, Andrew Voronkov wrote: > how on your opinion modeller objective function correlates with > quality of the models. For example I have objective function value > 1730 for one modelk and -750 which as I understand reflects free > energy. Does it mean that I shouldn t consider the first one at > all? The Modeller objective function is simply a measure of how many restraints were violated in building your model. While the score could be thought of roughly as an "energy" (not free energy) this is certainly not a rigorous measure of model quality. Use an assessment function such as normalized DOPE for this purpose. > Let's say I want to make cutoff -100 for the objective function. In > which format it should be done? > > automodel.max_molpdf -100 Build your models, then assess them and pick the best ones. max_molpdf is designed as a filter to throw away the very worst models - it doesn't act on the final PDF, but the score of intermediate (partially optimized) models - the reasoning being to not waste time on trying to optimize a model that is very bad. Thus max_molpdf is not really what you want here. Ben Webb, Modeller Caretaker -- modeller-care(a)salilab.org http://www.salilab.org/modeller/ Modeller mail list: http://salilab.org/mailman/listinfo/modeller_usage ------------------------------ Message: 4 Date: Tue, 01 Nov 2011 23:21:23 +0400 From: Andrew Voronkov <drugdesign(a)yandex.ru> Subject: [modeller_usage] flexible ligand parametrization using nonstd_restraints(aln) To: modeller_usage(a)salilab.org Message-ID: <217441320175283(a)web128.yandex.ru> Content-Type: text/plain; charset=utf-8 I have a task to remodel the loop conformation which binds ligand in order to optimize the ligand-protein structure. Structure is X-ray, but ligand position is not known, so I take it from docking assuming that docking gives pose close to correct. So the goal is to model flexibility. I have asked this question couple of days a ago, but now it is more specific. I have used loop modeling with lgiand transfer and it works relatively well, but as I understand as far as this is non conventional residue it is treated as rigid and its interactions with protein are also treated as rigid according to what is written in the manual (listed below). So is it possible to define ligand as flexible using nonst restrains, I need to consult with someone who did. Actually it s kind of usage of Modeller as docking software, I don t knwo whether it is possible to parametrize ligand and optimize its position using simulated annealing and loop rmodeling, so kind of imitating induced fit. Has anyone tried this and question to Modeller Caretaker - is it potentially possible? Best regards, Andrew nonstd restraints(aln) 44 CHAPTER 4. COMPARATIVE MODELING CLASS REFERENCE This routine adds restraints to keep non-standard residues (anything treated as a HETATM or BLK residue, such as ligands or metal ions) in a reasonable conformation. You can override this method if you need to change these restraints. By default, four sets of restraints are built: ? For each residue that has no defined topology (generally BLK residues, used to transfer ligands directly from templates, as described in Section 2.2.1), intra-residue distances are all constrained to their template values. This causes each residue to behave as a rigid body. ? Inter-residue distances are constrained to template values if these are 7?A or less. This has the effect of preserving multiple-HETATM structures such as DNA chains. If the distances are 2.3?A or less they are assumed to be bonds and so are restrained more strongly and also excluded from the nonbonded list. ? Residue-protein atom distances are strongly constrained to template values (and excluded from the nonbonded list) if these are 2.3?A or less. This preserves chemical bonds between ligands and the protein. ? Residue-protein C distances are constrained to template values if these are 10?A or less and are not already bonded by the previous restraints. This preserves the ligand position. - so I get protein-ligand interactions very much restrained and all final models are quite close to the initial coordinates. ------------------------------ _______________________________________________ modeller_usage mailing list modeller_usage(a)salilab.org https://salilab.org/mailman/listinfo/modeller_usage End of modeller_usage Digest, Vol 10, Issue 136 ***********************************************

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flexible ligand parametrization using nonstd_restraints(aln)
by Andrew Voronkov 01 Nov '11

01 Nov '11

I have a task to remodel the loop conformation which binds ligand in order to optimize the ligand-protein structure. Structure is X-ray, but ligand position is not known, so I take it from docking assuming that docking gives pose close to correct. So the goal is to model flexibility. I have asked this question couple of days a ago, but now it is more specific. I have used loop modeling with lgiand transfer and it works relatively well, but as I understand as far as this is non conventional residue it is treated as rigid and its interactions with protein are also treated as rigid according to what is written in the manual (listed below). So is it possible to define ligand as flexible using nonst restrains, I need to consult with someone who did. Actually it s kind of usage of Modeller as docking software, I don t knwo whether it is possible to parametrize ligand and optimize its position using simulated annealing and loop rmodeling, so kind of imitating induced fit. Has anyone tried this and question to Modeller Caretaker - is it potentially possible? Best regards, Andrew nonstd restraints(aln) 44 CHAPTER 4. COMPARATIVE MODELING CLASS REFERENCE This routine adds restraints to keep non-standard residues (anything treated as a HETATM or BLK residue, such as ligands or metal ions) in a reasonable conformation. You can override this method if you need to change these restraints. By default, four sets of restraints are built: • For each residue that has no defined topology (generally BLK residues, used to transfer ligands directly from templates, as described in Section 2.2.1), intra-residue distances are all constrained to their template values. This causes each residue to behave as a rigid body. • Inter-residue distances are constrained to template values if these are 7°A or less. This has the effect of preserving multiple-HETATM structures such as DNA chains. If the distances are 2.3°A or less they are assumed to be bonds and so are restrained more strongly and also excluded from the nonbonded list. • Residue-protein atom distances are strongly constrained to template values (and excluded from the nonbonded list) if these are 2.3°A or less. This preserves chemical bonds between ligands and the protein. • Residue-protein C distances are constrained to template values if these are 10°A or less and are not already bonded by the previous restraints. This preserves the ligand position. - so I get protein-ligand interactions very much restrained and all final models are quite close to the initial coordinates.

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Homology Modeling of the Loop
by Alexander Predeus 01 Nov '11

01 Nov '11

Hello all, I'm very much a beginner at modeling, and this question might be very trivial. I hope you still would hint me about the answer, for it would help me a lot. I have a large protein (say 1500 residues, let's call it protein A) and its homologue (protein B) of about the same size. Both proteins have published crystal structures. Both proteins have a key structural element, loop L. The loop is poorly resolved in structure A, but well resolved in homologous structure B. Now, I can take just the L loop regions as separate PDB files from both A and B and do homology modeling of A based on B; this works really well. But I also would like the model to consider the surroundings (the rest of the structure) when evaluating the energies. Thus, I'd like to keep the REST of A's crystal structure intact, and only model loop L based on the structure of the same region in protein B. How can I achieve that? Thank you in advance! - Alex Predeus Michigan State University

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parallelization and the master/slaves' env.io.atom_files_directory?
by R K Belew 01 Nov '11

01 Nov '11

i'm separating a script that has worked into separate slave and master modules as described in http://salilab.org/modeller/manual/node435.html. my master script looks like this: > j = job() > j.append(local_slave()) > j.append(local_slave()) > > for afile in alignFiles: > > alnRunDir = '%s%s/' % (dataDir,aname) > if not os.path.isdir(alnRunDir): > print "doAllAlign: Creating directory",alnRunDir > os.makedirs(alnRunDir) > > for runIdx in range(nruns): > j.queue_task(SeedTask(argumentList)) > > for result in j.yield_tasks_unordered(): > print result and my slave task like this: > class SeedTask(task): > """A task to read in a PDB file on the slave, and return the resolution""" > > def run(self,dataDir,afile,aname,runIdx,randMethod,knownLbl,seqLbl,nmodPerRun,atomDeviation ): > env = environ() > env.io.atom_files_directory = [dataDir] > arg4seed = - (int(runIdx) + 2) > env = environ(arg4seed) > > runDir = '%s/%s/run_%02d/' % (dataDir,aname,runIdx) > if not os.path.isdir(runDir): > print "doAllAlign: Creating directory",runDir > os.makedirs(runDir) > > os.chdir(runDir) > > a = automodel(env, alnfile=afile, > knowns=knownLbl, sequence=seqLbl, > assess_methods=(assess.DOPE, assess.GA341)) > > a.starting_model = 1 > # 2do: test task / run ratio? > a.ending_model = nmodPerRun > > a.deviation = atomDeviation > if randMethod=='XYZ': > a.rand_method = randomize.xyz > elif randMethod=='DIHEDRAL': > a.rand_method = randomize.dihedrals > > a.make() i'm stepping thru with a debugger, and it gets to the yield_tasks_unordered() generator in the master. but as i attempt to make the next step it throws an exception that seems to have to do with env.io.atom_files_directory now (in the master/slave version) not getting set correctly? > Running 14 tasks on 2 slaves > /usr/bin/python2.6 /usr/lib/modeller9.10/bin/modslave.py -slave 127.0.1.1:59861:0:BGRESKQY >& seed_align_pp.slave0 > /usr/bin/python2.6 /usr/lib/modeller9.10/bin/modslave.py -slave 127.0.1.1:59861:1:ZCQMRSNQ >& seed_align_pp.slave1 > Identified slave <Slave on localhost> > Identified slave <Slave on localhost> > Traceback (most recent call last): > File "/home/rik/Data/pkg/eclipse/plugins/org.python.pydev.debug_2.2.3.2011100616/pysrc/pydevd.py", line 1267, in <module> > debugger.run(setup['file'], None, None) > File "/home/rik/Data/pkg/eclipse/plugins/org.python.pydev.debug_2.2.3.2011100616/pysrc/pydevd.py", line 1020, in run > pydev_imports.execfile(file, globals, locals) #execute the script > File "/home/rik/Code/eclipse/modeller/src/seed_align_pp.py", line 98, in <module> > doAllAlign() > File "/home/rik/Code/eclipse/modeller/src/seed_align_pp.py", line 91, in doAllAlign > for result in j.yield_tasks_unordered(): > File "/usr/lib/python2.6/dist-packages/modeller/parallel/job.py", line 146, in yield_tasks_unordered > for task in self._finish_all_tasks(): > File "/usr/lib/python2.6/dist-packages/modeller/parallel/job.py", line 164, in _finish_all_tasks > task = self._process_event(obj, s) > File "/usr/lib/python2.6/dist-packages/modeller/parallel/job.py", line 180, in _process_event > task = obj.task_results() > File "/usr/lib/python2.6/dist-packages/modeller/parallel/slave.py", line 61, in task_results > r = self.get_data(allow_heartbeat=True) > File "/usr/lib/python2.6/dist-packages/modeller/parallel/communicator.py", line 89, in get_data > (cmdtype, obj) = self._recv() > File "/usr/lib/python2.6/dist-packages/modeller/parallel/communicator.py", line 130, in _recv > raise RemoteError(obj.exc, self) > modeller.parallel.communicator.RemoteError: <type 'IOError'>: pdbnam_____E> Filename for PDB code not found: 1A04A.pdb > Directories: > Extensions : :.atm:.pdb:.ent:.crd > (Also tried prepending 'pdb', looking for .Z, .gz, .bz2, .7z, .xz, > and trying PDB-style subdirectories - e.g. ab for pdb1abc.ent) > from <Slave on localhost> would you know what i'm doing wrong here? thanks again for your help. Rik

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automodel.max_molpdf recommended values and usage format
by Andrew Voronkov 01 Nov '11

01 Nov '11

Dear Modeller users, how on your opinion modeller objective function correlates with quality of the models. For example I have objective function value 1730 for one modelk and -750 which as I understand reflects free energy. Does it mean that I shouldn t consider the first one at all? Let's say I want to make cutoff -100 for the objective function. In which format it should be done? automodel.max_molpdf -100 is that correct? Sincerely yours, Andrey

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Re: [modeller_usage] modeller_usage Digest, Vol 10, Issue 134
by Ashish Runthala 01 Nov '11

01 Nov '11

Dear Alex, It is pretty simple. Simplest way is to make the alignment file with your loop region well aligned to corresponding chunk in structure B and for other residues, put gap in your alignment file for structure A, corresponding to respective additional residues in structure B. You may use the PRALINE alignment to do it and pipeline that to MODELLER. There is one more way too to consider the environmental effects on structural topology of A as per the structure B. Ashish Ashish Runthala, Lecturer, Structural Biology Cell, Biological Sciences Group, BITS, Pilani Rajasthan, INDIA ----- Original Message ----- From: "modeller usage-request" <modeller_usage-request(a)salilab.org> To: "modeller usage" <modeller_usage(a)salilab.org> Sent: Tuesday, November 1, 2011 9:31:40 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi Subject: modeller_usage Digest, Vol 10, Issue 134 Send modeller_usage mailing list submissions to modeller_usage(a)salilab.org To subscribe or unsubscribe via the World Wide Web, visit https://salilab.org/mailman/listinfo/modeller_usage or, via email, send a message with subject or body 'help' to modeller_usage-request(a)salilab.org You can reach the person managing the list at modeller_usage-owner(a)salilab.org When replying, please edit your Subject line so it is more specific than "Re: Contents of modeller_usage digest..." Today's Topics: 1. Homology Modeling of the Loop (Alexander Predeus) 2. Re: modeller_usage Digest, Vol 10, Issue 132 (Ashish Runthala) ---------------------------------------------------------------------- Message: 1 Date: Mon, 31 Oct 2011 15:02:46 -0400 From: Alexander Predeus <predeus(a)gmail.com> Subject: [modeller_usage] Homology Modeling of the Loop To: modeller_usage(a)salilab.org Message-ID: <CADvsxO=iHEGXCyUW=DfC7GrRumcYcfgUYxmp5gnPjGC5Cff73w(a)mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" Hello all, I'm very much a beginner at modeling, and this question might be very trivial. I hope you still would hint me about the answer, for it would help me a lot. I have a large protein (say 1500 residues, let's call it protein A) and its homologue (protein B) of about the same size. Both proteins have published crystal structures. Both proteins have a key structural element, loop L. The loop is poorly resolved in structure A, but well resolved in homologous structure B. Now, I can take just the L loop regions as separate PDB files from both A and B and do homology modeling of A based on B; this works really well. But I also would like the model to consider the surroundings (the rest of the structure) when evaluating the energies. Thus, I'd like to keep the REST of A's crystal structure intact, and only model loop L based on the structure of the same region in protein B. How can I achieve that? Thank you in advance! - Alex Predeus Michigan State University

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Re: [modeller_usage] modeller_usage Digest, Vol 10, Issue 132
by Ashish Runthala 01 Nov '11

01 Nov '11

Dear Junior, What you actually want to state? Do you need to build an average model based on the topology of 10 models? For this you may use them as templates without calling the chain identifiers. Ashish Runthala, Lecturer, Structural Biology Cell, Biological Sciences Group, BITS, Pilani Rajasthan, INDIA ----- Original Message ----- From: "modeller usage-request" <modeller_usage-request(a)salilab.org> To: "modeller usage" <modeller_usage(a)salilab.org> Sent: Monday, October 31, 2011 7:46:24 PM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi Subject: modeller_usage Digest, Vol 10, Issue 132 Send modeller_usage mailing list submissions to modeller_usage(a)salilab.org To subscribe or unsubscribe via the World Wide Web, visit https://salilab.org/mailman/listinfo/modeller_usage or, via email, send a message with subject or body 'help' to modeller_usage-request(a)salilab.org You can reach the person managing the list at modeller_usage-owner(a)salilab.org When replying, please edit your Subject line so it is more specific than "Re: Contents of modeller_usage digest..." Today's Topics: 1. Re: What is the mistake in this set of lines? (Ashish Runthala) 2. Re: What is the mistake in this set of lines? (Ashish Runthala) 3. Build a model with multiple models (junior) ---------------------------------------------------------------------- Message: 1 Date: Sat, 29 Oct 2011 10:39:22 +0530 (IST) From: Ashish Runthala <ashishr(a)bits-pilani.ac.in> Subject: Re: [modeller_usage] What is the mistake in this set of lines? To: modeller <modeller_usage(a)salilab.org> Message-ID: <20822758.298281319864962852.JavaMail.root(a)mailserver.bits-pilani.ac.in> Content-Type: text/plain; charset=utf-8 Is it possible that i can declare some variables in python similar to the standard default MODELLER variables atomfile, pdbfile and code. How these variables are declared in MODELLER? Thanks Ashish Ashish Runthala, Lecturer, Structural Biology Cell, Biological Sciences Group, BITS, Pilani Rajasthan, INDIA ----- Original Message ----- From: "Ashish Runthala" <ashishr(a)bits-pilani.ac.in> To: "modeller" <modeller_usage(a)salilab.org> Sent: Friday, October 28, 2011 8:17:00 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi Subject: What is the mistake in this set of lines? Dear Modellers, I wrote a script to do three template modeling for a target sequence from all the templates present in the same folder. The script is expected to take 1SHW, 1SHX fixed and the third one should be iteratively taken from the current folder. MODELLER defines atom as any PDB or .atm template file and pdbfile is the keyword defined for template with chain ID. So when i use pdbfile for both 1SHW, 1SHX why it only takes the one with the 2nd entry. Like a normal variable initial template name changes when it is assigned to some other template. So what is the mistake in this set of lines? How should i solve this task. for (code, code, atomfile, chain) in (('1SHWA','1SHXA','1SHX','A'), (pdbfile,pdbfile,fileName,'A')): mdl = model(env, file=atomfile, model_segment=('FIRST:'+chain, 'LAST:'+chain)) aln.append_model(mdl, atom_files=code, align_codes=atomfile) Thanks, Ashish Ashish Runthala, Lecturer, Structural Biology Cell, Biological Sciences Group, BITS, Pilani Rajasthan, INDIA ------------------------------ Message: 2 Date: Sun, 30 Oct 2011 15:52:37 +0530 (IST) From: Ashish Runthala <ashishr(a)bits-pilani.ac.in> Subject: Re: [modeller_usage] What is the mistake in this set of lines? To: modeller <modeller_usage(a)salilab.org> Message-ID: <15487763.309941319970157647.JavaMail.root(a)mailserver.bits-pilani.ac.in> Content-Type: text/plain; charset=utf-8 What nobody knows to declare such data types? Any guesses with anyone what it should be, as probably there in MODELLER modules and functional binaries. Ashish Runthala, Lecturer, Structural Biology Cell, Biological Sciences Group, BITS, Pilani Rajasthan, INDIA ----- Original Message ----- From: "Ashish Runthala" <ashishr(a)bits-pilani.ac.in> To: "modeller" <modeller_usage(a)salilab.org> Sent: Saturday, October 29, 2011 10:39:22 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi Subject: Re: What is the mistake in this set of lines? Is it possible that i can declare some variables in python similar to the standard default MODELLER variables atomfile, pdbfile and code. How these variables are declared in MODELLER? Thanks Ashish Ashish Runthala, Lecturer, Structural Biology Cell, Biological Sciences Group, BITS, Pilani Rajasthan, INDIA ----- Original Message ----- From: "Ashish Runthala" <ashishr(a)bits-pilani.ac.in> To: "modeller" <modeller_usage(a)salilab.org> Sent: Friday, October 28, 2011 8:17:00 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi Subject: What is the mistake in this set of lines? Dear Modellers, I wrote a script to do three template modeling for a target sequence from all the templates present in the same folder. The script is expected to take 1SHW, 1SHX fixed and the third one should be iteratively taken from the current folder. MODELLER defines atom as any PDB or .atm template file and pdbfile is the keyword defined for template with chain ID. So when i use pdbfile for both 1SHW, 1SHX why it only takes the one with the 2nd entry. Like a normal variable initial template name changes when it is assigned to some other template. So what is the mistake in this set of lines? How should i solve this task. for (code, code, atomfile, chain) in (('1SHWA','1SHXA','1SHX','A'), (pdbfile,pdbfile,fileName,'A')): mdl = model(env, file=atomfile, model_segment=('FIRST:'+chain, 'LAST:'+chain)) aln.append_model(mdl, atom_files=code, align_codes=atomfile) Thanks, Ashish Ashish Runthala, Lecturer, Structural Biology Cell, Biological Sciences Group, BITS, Pilani Rajasthan, INDIA ------------------------------ Message: 3 Date: Mon, 31 Oct 2011 06:16:22 -0800 From: junior <sam.kauba(a)gmail.com> Subject: [modeller_usage] Build a model with multiple models To: modeller_usage(a)salilab.org Message-ID: <CAEJMx6wtgQ8U6MAG+uepWiwwcvTHbCvqFZ824_jJJS3cM2jciQ(a)mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Hi, How do I build a PDB file containing more than 10 models? Thank you. Sam Kauba ------------------------------ _______________________________________________ modeller_usage mailing list modeller_usage(a)salilab.org https://salilab.org/mailman/listinfo/modeller_usage End of modeller_usage Digest, Vol 10, Issue 132 ***********************************************

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modeller_usage November 2011