BAM (Binary Alignment Map)
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'''BAM''' (Binary Alignment Map) is a data format used for mapping sequences of DNA. It is a compressed binary version of the data in the [[SAM]] format. It is classified as an alignment format, as is [[CRAM]]. This is as opposed to sequence-only, unaligned, formats such as [[FASTA and FASTQ]]. | '''BAM''' (Binary Alignment Map) is a data format used for mapping sequences of DNA. It is a compressed binary version of the data in the [[SAM]] format. It is classified as an alignment format, as is [[CRAM]]. This is as opposed to sequence-only, unaligned, formats such as [[FASTA and FASTQ]]. | ||
Latest revision as of 03:51, 4 August 2020
BAM (Binary Alignment Map) is a data format used for mapping sequences of DNA. It is a compressed binary version of the data in the SAM format. It is classified as an alignment format, as is CRAM. This is as opposed to sequence-only, unaligned, formats such as FASTA and FASTQ.
BAM is compressed as a series of compressed blocks, each one a gzip archive. This is known as BGZF compression.
An index of a BAM is stored in a format called BAI, also described in the spec.
