## Description

This track displays translated blat alignments of mRNA for all Drosophila species from GenBank.

## Display Conventions and Configuration

This track follows the display conventions for PSL alignment tracks. In dense display mode, the items that are more darkly shaded indicate matches of better quality.

The strand information (+/-) for this track is in two parts. The first + indicates the orientation of the query sequence whose translated protein produced the match (here always 5' to 3', hence +). The second + or - indicates the orientation of the matching translated genomic sequence. Because the two orientations of a DNA sequence give different predicted protein sequences, there are four combinations. ++ is not the same as --, nor is +- the same as -+.

## Methods

mRNAs for all Drosophila species were aligned against the genome using blat in translated mode. When a single mRNA aligned in multiple places, only the best alignments also having at least 25% sequence identity were kept.

## Credits

The all-Drosphila mRNA track was produced at UCSC from mRNA sequence data submitted to the international public sequence databases by scientists worldwide.

## References

Benson DA, Karsch-Mizrachi I, Lipman DJ, Ostell J, Wheeler DL. GenBank: update. Nucleic Acids Res. 2004 Jan 1;32(Database issue):D23-6.

Kent WJ. BLAT - the BLAST-like alignment tool. Genome Res. 2002 Apr;12(4):656-64.