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美國Addgene  
Addgene是一個非營利性的網站，主要的目的是為了減少研究者索取質粒的繁瑣過程。他會收一定的手續費（$65/質粒）和運費（$45/包裹）.

Addgene is a non-profit organization dedicated to making it easier for scientists to share plasmids.

Addgene is reaching this goal by operating a plasmid repository for the research community. We are working with hundreds of laboratories to assemble a high-quality library of published plasmids for use in research and discovery. By linking plasmids with articles, scientists can always find data related to the materials they request.

Support Addgene
Addgene is a non-profit 501(c)(3) organization. Fees collected from plasmid sales are used to support operation of the repository. Charitable contributions are tax deductible. Click here to donate to Addgene.