Difference between revisions of "BEDTools"

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==Required Modules==
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==Environment Modules==
[[Modules|modules documentation]]
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*{{#var:app}}
 
 
==System Variables==
 
==System Variables==
* HPC_{{#uppercase:{{#var:app}}}}_DIR - installation directory
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* HPC_{{uc:{{#var:app}}}}_DIR - installation directory
 
*HPC_BEDTOOLS_BIN - the bin directory
 
*HPC_BEDTOOLS_BIN - the bin directory
 
*HPC_BEDTOOLS_DATA - BEDTools data directory
 
*HPC_BEDTOOLS_DATA - BEDTools data directory

Latest revision as of 12:48, 15 August 2022

Description

bedtools website  

The BEDTools utilities allow one to address common genomics tasks such as finding feature overlaps and computing coverage. The utilities are largely based on four widely-used file formats: BED, GFF/GTF, VCF, and SAM/BAM. Using BEDTools, one can develop sophisticated pipelines that answer complicated research questions by "streaming" several BEDTools together. The following are examples of common questions that one can address with BEDTools.

  1. Intersecting two BED files in search of overlapping features.
  2. Culling/refining/computing coverage for BAM alignments based on genome features.
  3. Merging overlapping features.
  4. Screening for paired-end (PE) overlaps between PE sequences and existing genomic features.
  5. Calculating the depth and breadth of sequence coverage across defined "windows" in a genome.
  6. Screening for overlaps between "split" alignments and genomic features.

The fact that all of the BEDTools accept input from “standard input (stdin)” allows one to “stream / pipe” several commands together to facilitate more complicated analyses. Also, the tools allow fine control over how output is reported. Most recently, I have added support for sequence alignments in BAM ([1]) format, as well as for features in VCF and GFF, as well as “blocked” BED format. The tools are quite fast and typically finish in a matter of a few seconds, even for large datasets. Upstream documentation for bedtools.

Environment Modules

Run module spider bedtools to find out what environment modules are available for this application.

System Variables

  • HPC_BEDTOOLS_DIR - installation directory
  • HPC_BEDTOOLS_BIN - the bin directory
  • HPC_BEDTOOLS_DATA - BEDTools data directory
  • HPC_BEDTOOLS_GENOMES - BEDTools genomes directory
  • HPC_BEDTOOLS_SCRIPTS - BEDTools scripts directory