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Old 04-26-2011, 02:10 AM   #1
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Default PubMed: SAMStat: monitoring biases in next generation sequencing data.

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SAMStat: monitoring biases in next generation sequencing data.

Bioinformatics. 2011 Jan 1;27(1):130-1

Authors: Lassmann T, Hayashizaki Y, Daub CO

The sequence alignment/map format (SAM) is a commonly used format to store the alignments between millions of short reads and a reference genome. Often certain positions within the reads are inherently more likely to contain errors due to the protocols used to prepare the samples. Such biases can have adverse effects on both mapping rate and accuracy. To understand the relationship between potential protocol biases and poor mapping we wrote SAMstat, a simple C program plotting nucleotide overrepresentation and other statistics in mapped and unmapped reads in a concise html page. Collecting such statistics also makes it easy to highlight problems in the data processing and enables non-experts to track data quality over time.

PMID: 21088025 [PubMed - indexed for MEDLINE]

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