Melting 5 - How to run in batch mode

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Nicolas Rodriguez

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Dec 9, 2015, 7:54:44 AM12/9/15
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Forwarding this post from the old sourceforge forum as it could be useful to some users.

Hi Nicolas,

Thank you for your answer. It made the trick !
I thought it would much more complicated to handle a large set of sequences.

Thanks a lot,
I will come back to you if I need more technical information,

Regards,
Laurent



-----Message d'origine-----
De : Nicolas Rodriguez [mailto:rodri...@babraham.ac.uk
Envoyé : jeudi 18 juin 2015 12:30
À : DRAZEK Laurent
Objet : RE: Melting 5 - How to run in batch mode

Hi Laurent,

> -------- Forwarded Message --------
> Subject: RE: Melting 5
> Date: Thu, 18 Jun 2015 11:26:48 +0200
> From: DRAZEK Laurent <Laurent...@biomerieux.com>
>
> Bonjour,
>
> Je reviens vers vous, suite à notre précédent échange.
> Comme je vous l'indiquais, nous aimerions nous appuyer sur MELTING5 
> pour calculer des delta_G0 pour des hybrides ADN/ADN.
> Nous avons un très grand nombre de valeurs à compiler et votre package 
> semble avoir un mode "batch" qui nous serait bien utile.
>
> Je n'ai trouvé aucune documentation associée à ce mode "batch", en 
> particulier comment formater le fichier d'entrée contenant les séquences.
>
> Pourriez-vous m'aider ?
>

So your question is how to use melting to calculate melting temperatures for a large number of sequences.

For this you can use the 'melting-batch' script or directly the 'melting.BatchMain' java class.

The format of the command is: 'melting-batch [OPTIONS] sequencefile'

Here [OPTIONS] mean all of you standard melting options, excluding the -S or -C. Then a sequencefile, this has to be the last argument.

How to format the sequence file? You need to put one sequence per line, for each non empty line in the file a melting temperature will be calculated.
You have the option to also put the complementary sequence, on the same line, separated by a space or tab.

Let us know if it work for you,
Thanks,
Nico

Piero Dalle Pezze

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Dec 9, 2015, 8:04:27 AM12/9/15
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So would the following be a suitable sequence input file for Melting?

<--- file starts here --->
GCAGCAGC
GCAGCAGCAGC
GCAGCAGCAGCAGC
GCCGCCGC
GCCGCCGCCGC
GCCGCCGCCGCCGC
GCGGCGGC
GCGGCGGCGGC
GCGGCGGCGGCGGC
GCUGCUGC
GCUGCUGCUGC
GCUGCUGCUGCUGC                                                                     
GCAGCAGCAGCAGCAGC
GCAGCAGCAGCAGCAGCAGC
GCAGCAGCAGCAGCAGCAGCAGC
GCGGCGGCGGCGGCGGC
GCGGCGGCGGCGGCGGCGGC
GCGGCGGCGGCGGCGGCGGCGGC
GCUGCUGCUGCUGCUGC
GCUGCUGCUGCUGCUGCUGC
GCUGCUGCUGCUGCUGCUGCUGC
GCCGCCGCCGCCGCCGC
GCCGCCGCCGCCGCCGCCGC
GCCGCCGCCGCCGCCGCCGCCGC
<--- file ends here --->
                     

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Nicolas Rodriguez

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Dec 9, 2015, 8:06:25 AM12/9/15
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Yes, one sequence per line, as said in the previous post.

Nico

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Piero Dalle Pezze

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Dec 9, 2015, 8:09:02 AM12/9/15
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Okay, so the file src/examples/test/CNGSequences.txt (same data) is a result file? 


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Piero Dalle Pezze

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Dec 9, 2015, 8:12:25 AM12/9/15
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Okay, so this is a validation file where the expected melting temperature for each sequence is provided: 

(file src/examples/test/CNGSequences.txt)

# Broda et al (2005). Biochemistry 44: 10873-10882.
# 0.0001 M oligomer concentration.1 M sodium chloride, 20 mM sodium cacodylate, and 0.5 mM Na2EDTA, pH 7.

GCAGCAGC=39.8 
GCAGCAGCAGC=48.1 
GCAGCAGCAGCAGC=51.4                                      
GCCGCCGC=41.6 
GCCGCCGCCGC=44.9 
GCCGCCGCCGCCGC=46.0
GCGGCGGC=44.2 
GCGGCGGCGGC=59.5 
GCGGCGGCGGCGGC=65.6
GCUGCUGC=33.7 
GCUGCUGCUGC=44.3 
GCUGCUGCUGCUGC=52.2                                                                              
GCAGCAGCAGCAGCAGC=65.2
GCAGCAGCAGCAGCAGCAGC=68.0
GCAGCAGCAGCAGCAGCAGCAGC=68.8
GCGGCGGCGGCGGCGGC=69.0
GCGGCGGCGGCGGCGGCGGC=69.0
GCGGCGGCGGCGGCGGCGGCGGC=74.2
GCUGCUGCUGCUGCUGC=60.6
GCUGCUGCUGCUGCUGCUGC=62.9
GCUGCUGCUGCUGCUGCUGCUGC=65.2
GCCGCCGCCGCCGCCGC=65.0
GCCGCCGCCGCCGCCGCCGC=65.6
GCCGCCGCCGCCGCCGCCGCCGC=67.2 

t.be...@agruni.edu.ge

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May 13, 2016, 2:10:08 AM5/13/16
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Hi Nicolas,
How long molecules can be analyzed - 160 kb?
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