SnapGene provides two tools for finding and downloading published plasmid sequences.
SnapGene provides it own library of carefully curated and annotated sequences for common commercial and public domain plasmid sequences. You can access this library from within SnapGene via menu File → Import → SnapGene Online Sequences, files will download and open directly within SnapGene. Alternatively, you can also search and download the same sequences from our plasmids web page at https://www.snapgene.com/resources/plasmid-files/.
SnapGene also provides online access and direct download from the AddGene plasmid sequence library (https://www.addgene.org/). You can access this library from within SnapGene via menu File → Import → AddGene Plasmids, files will download and open directly within SnapGene.
See our User Guide article - Import a Published Plasmid Sequence - for more details on importing from these plasmid sequence collections.
What if the plasmid I need is not available in the AddGene or SnapGene databases?
If you can source your plasmid sequence from an online database, publication (in supplementary data) or from a sequence author, in a format compatible with SnapGene (See https://www.snapgene.com/features/convert-file-formats), then open the file in SnapGene to start working with it. If required, use Detect Common Features to annotate the sequence with features.
If you source a plasmid sequence as raw text or in fasta format then import in SnapGene via File → New DNA or RNA File. Paste the sequence into the " New File" window, SnapGene will automatically detect any common plasmid features (if present) and will then automatically circularise and add detected features to the sequence.