PlasMapper is a freely available web server that automatically generates and annotates high-quality circular plasmid maps. It is a particularly useful online service for molecular biologists wishing to generate plasmid maps without having to purchase or maintain expensive, commercial software. PlasMapper accepts plasmid/vector DNA sequence as input and uses sequence pattern matching and BLAST sequence alignment to automatically identify and label common promoters, terminators, cloning sites, restriction sites, reporter genes, affinity tags, selectable marker genes, origins of replication and open reading frames. PlasMapper then reformats and presents the identified features in both a simple textual form and as high-resolution, multicolored image.
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