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BS tools
Tools for the analysis of BS-Seq data
Version 0.1
May, 2014
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Table of Contents
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1. Overview
3. Usage
4. Contact
5. References
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1. Overview
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BS tools are designed for the analysis of BS-Seq data, from bisulfite read
mapping to SNP and methylation level calling at single-nucleotide resolution.
It consists out of two main tools: Bisar and Casbar.
Bisar reads three-letter mappings of bisulfite reads and computes
local pairwise four-letter realignments using an advanced statistical
alignment model.
These alignments can be then used in the subsequent tool Casbar for a simultaneous
SNP and methylation level calling. A Bayesian model is used to compute the
posterior probability for each possible genotype under the observed data
and a given methylation level. The methylation level maximizing the
posterior probability is determined and the genotype with the highest
probability is chosen.
The files README.bisar and README.bisar contain detailed documentation of
the respective tools.
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3. Usage
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The binaries bisar and casbar can be found in the directory "bin".
Each program has a verbose built-in help that you can view using the "--help"
option. For example,
$ bisar --help
$ casbar --help
prints the help for the respective tools.
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4. Contact
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For questions or comments, contact:
Sabrina Krakau <sabrina.krakau@fu-berlin.de>
or
David Weese <david.weese@fu-berlin.de>
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5. References
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More detailed information you can find in the following document:
http://www.mi.fu-berlin.de/en/inf/groups/abi/theses/master_dipl/krakau/
msc_thesis_krakau.pdf?1394119375
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