Difference between revisions of "Bismark"

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Bismark supports both single-end and paired-end read mapping of Bisulfite-Seq data in either fastA or fastQ format produced by e.g. the Illumina Genome Analyser IIx, while retaining much of the flexibility of Bowtie (adjust the seed length, number of mismatches, --best, insert sizes ...). Sequence reads are first transformed into fully bisulfite-converted forward (C > T) and reverse reads (G > A conversion of the forward strand),  
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Bismark supports both single-end and paired-end read mapping of Bisulfite-Seq data in either fastA or fastQ format produced by e.g. the Illumina platform, while retaining much of the flexibility of Bowtie (adjust the seed length, number of mismatches, --best, insert sizes ...). Sequence reads are first transformed into fully bisulfite-converted forward (C > T) and reverse reads (G > A conversion of the forward strand),  
 
before aligning them to similarly converted versions of the genome (also C > T and G > A). Sequence reads that produce a unique best alignment from the four alignment processes against the bisulfite genome (which are running in parallel), are then compared to the normal genomic sequence and the methylation state of all cytosine positions in the read is determined.
 
before aligning them to similarly converted versions of the genome (also C > T and G > A). Sequence reads that produce a unique best alignment from the four alignment processes against the bisulfite genome (which are running in parallel), are then compared to the normal genomic sequence and the methylation state of all cytosine positions in the read is determined.
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As of version 0.6.x Bismark does also support gapped alignments using Bowtie 2.
 
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Revision as of 18:21, 6 January 2012

Application data

Created by Felix Krueger
Biological application domain(s) Epigenomics, Genomics, DNA Methylation
Principal bioinformatics method(s) Bisulfite mapping, Mapping, Methylation Calling
Created at The Babraham Institute, Babraham Bioinformatics
Maintained? Yes
Input format(s) FASTQ, FASTA
Output format(s) SAM (or custom)
Software features fast and convenient Bisulfite-Seq output, very flexible
Programming language(s) Perl
Licence GPLv3
Operating system(s) Linux, Mac OS X, Windows

Summary: Bismark is a tool to map bisulfite treated sequencing reads and perform methylation calling in a quick and easy-to-use fashion.

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Bismark supports both single-end and paired-end read mapping of Bisulfite-Seq data in either fastA or fastQ format produced by e.g. the Illumina platform, while retaining much of the flexibility of Bowtie (adjust the seed length, number of mismatches, --best, insert sizes ...). Sequence reads are first transformed into fully bisulfite-converted forward (C > T) and reverse reads (G > A conversion of the forward strand), before aligning them to similarly converted versions of the genome (also C > T and G > A). Sequence reads that produce a unique best alignment from the four alignment processes against the bisulfite genome (which are running in parallel), are then compared to the normal genomic sequence and the methylation state of all cytosine positions in the read is determined.

As of version 0.6.x Bismark does also support gapped alignments using Bowtie 2.

Links


References

  1. . 2011. Bioinformatics


To add a reference for Bismark, enter the PubMed ID in the field below and click 'Add'.

 


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