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chromosomeReference chromosome or contig name
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startStart position (0-based, inclusive)
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endEnd position (0-based, exclusive)
Optional
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nameName of the BED line (BED4+)
Optional
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scoreScore between 0 and 1000 (BED5+)
Optional
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strandStrand orientation (BED6+)
Optional
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thickStart of thick/coding region (BED9+)
Optional
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thickEnd of thick/coding region (BED9+)
Optional
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itemRGB color value (BED9+)
Optional
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blockNumber of blocks/exons (BED12+)
Optional
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blockComma-separated list of block sizes (BED12+)
Optional
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blockComma-separated list of block starts (BED12+)
Optional
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lineOriginal line number for error reporting
Optional
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lengthComputed interval length
Optional
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midpointComputed midpoint coordinate
Optional
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statsComputed interval statistics
BED interval representation with computed properties Supports BED3, BED6, BED9, and BED12 formats