Part:BBa_K2232025

mazEF switch

Encodes a stable non-specific ribonuclease toxin (mazF) and its inhibitory antitoxin (mazE) in Bacillus Subtilis. These genes are used in Bacillus Subtilis to provide a toxin-antitoxin kill switch in various stressful conditions. When expression of both genes is turned off (as both are under contol of same promoter) mazE will be degraded faster than mazF. There is then no inhibiton of mazF, killing the cell. Contains Sucrose sensitive inducer that will only allow coding sequence translation in the presence of sucrose. These genes are used in Bacillus subtilis to provide a toxin-antitoxin kill switch in various stressful conditions. When translation of both genes is turned off by sucrose limitation mazE will be degraded faster than mazF. There is then no inhibiton of mazF, killing the cell.

Sequence and Features

Assembly Compatibility:

• 10
  COMPATIBLE WITH RFC[10]
• 12
  COMPATIBLE WITH RFC[12]
• 21
  INCOMPATIBLE WITH RFC[21]

  Illegal BamHI site found at 363
  
• 23
  COMPATIBLE WITH RFC[23]
• 25
  COMPATIBLE WITH RFC[25]
• 1000
  COMPATIBLE WITH RFC[1000]

References

Considering the biosafety in our project, we used the original part BBa_K302035 from iGEM10_Newcastle team, which is a suicide switch induced by sucrose.