Part:BBa_K3034006

Ciprofloxacin resistance cassette

Usage and Biology

This part is a ciprofloxacin resistance cassette. It contains a strong promoter J23119(BBa_J23119), RBS(BBa_K1725309), ciprofloxacin resistance gene qnrS1 and a terminator(BBa_B1006)(fig.1).

Ciprofloxacin resistance gene qnrS1 is first found in Gram-negative strains. It's one of the plasmid-mediated quinolone resistance genes and it encodes pentapeptide duplicates of about 200 amino acids. These proteins can produce quinolone resistance through two different mechanisms of action. One is decreasing the number of quinolone target sites by reducing DNA binding to helicase or topoisomerase IV. The other one is to inhibit the binding of quinolone to enzymes by binding these proteins to helicase or topoisomerase.

fig.1 The Framework of BBa_K3034006.

Sequence and Features

Assembly Compatibility:

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

  Illegal NheI site found at 7
  Illegal NheI site found at 30
  
• 21
  INCOMPATIBLE WITH RFC[21]

  Illegal BglII site found at 36
  
• 23
  COMPATIBLE WITH RFC[23]
• 25
  COMPATIBLE WITH RFC[25]
• 1000
  COMPATIBLE WITH RFC[1000]