Modular vector assembly enables rapid assessment of emerging CRISPR technologies.
Abby V McGeeYanjing V LiuAudrey L GriffithZsofia M SzegletesBronte WenCarolyn KrausNathan W MillerRyan J StegerBerta Escude VelascoJustin A BoschJonathan D ZirinRaghuvir ViswanathaErik J SontheimerAmy GoodaleMatthew A GreeneThomas M GreenJohn G DoenchPublished in: bioRxiv : the preprint server for biology (2023)
The diversity of CRISPR systems, coupled with scientific ingenuity, has led to an explosion of applications; however, to test newly-described innovations in their model systems, researchers typically embark on cumbersome, one-off cloning projects to generate custom reagents that are optimized for their biological questions. Here, we leverage Golden Gate cloning to create the Fragmid toolkit, a modular set of CRISPR cassettes and delivery technologies, along with a web portal, resulting in a combinatorial platform that enables scalable vector assembly within days. We further demonstrate that multiple CRISPR technologies can be assessed in parallel in a pooled screening format using this resource, enabling the rapid optimization of both novel technologies and cellular models. These results establish Fragmid as a robust system for the rapid design of CRISPR vectors, and we anticipate that this assembly approach will be broadly useful for systematic development, comparison, and dissemination of CRISPR technologies.