Types | DnaRegion
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Roles | engineered_region
Measurement
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Sequences | BBa_K154000_sequence (Version 1)
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Description
This part combines the promoter of the recA gene (an SOS promoter) and the full LacZ gene, with Amp resistance. Original part numbers are J22106 (recA) and I732017 (lacZ). The promoter is in front of the LacZ gene, and therefore signals transcription of LacZ when the SOS DNA repair mechanism is triggered by massive DNA damage. LacZ encodes for beta-galactosidase, which cleaves lactose and its homolog X-gal. X-gal is cleaved into galactose and an insoluble blue dye. By plating on an X-gal plate, a bacterium with this plasmid should turn blue when exposed to extensive amounts of DNA damage.
Notes
N/A
Source
Source: Biobricks and the Registry of Standard Biological Parts
recA promoter (SOS promoter): part J22106
lacZ gene: part I732017