Types | DnaRegion
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Roles | engineered_region
Project
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Sequences | BBa_K1774000_sequence (Version 1)
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Description
This is a prototype containment device utilizing CRISPR-Cas9 system which aims to control accidental leakage of GMM once it escape from medium containing arabinose and tryptophan. The device consists of two modules, firstly a arabinose repressible cas9 expression module and a tryptophan repressible gRNA expression module. Under the presence of sufficient amount of arabinose and tryptophan the device remain silent, however when bacteria escape to environment without arabinose and tryptophan, Cas9 and a gRNA targeting DNA polymerase III alpha subunit will be expressed. Subsequent cleavage of the targeted sequence may hinder DNA replication and
Notes
a lot
Source
Cas9 originated from S. pyogenes SF 370