Frequently asked questions

Our Scientific Applications Support team has assembled a list of frequently asked questions to help you find answers quickly. Filter using one or more categories to focus on specific topics, or use the search bar to perform a text search.

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What CRISPR-Cpf1 crRNA controls should I use?

We have recommended positive and negative control sequences for Cpf1 crRNAs available for ordering on the website. These recommended sequences can be found in the Alt-R® CRISPR Cpf1 user guides (accessible at, Support section), and are also available on the side bar of the CRISPR-Cpf1 crRNA ordering pages (accessible at