Part:BBa_K1323002

dCas9: Expression cassette under a xylose inducible promoter

dCas9 or ‘dead’ cas9 is a mutated version of Cas9 that has lost its endonuclease activity - it no longer cuts double stranded DNA, instead simply binding to it. This means it can function as a repressor after complexing with sgRNA and the sgRNA-target site. dCas9 contains mutations in the RuvC1 and HNH nuclease domains; these changes are what bestow this modified Cas9 with it’s ability to bind DNA instead of cleaving it (Lei S. Qi, 2013). It has a Xylose Inducible Promoter BBa_K1323014 and a sodA RBS BBa_K1323022. The illegal sites have been removed, and the sequence was codon optimized for expression in S. epidermidis using JCat software.

This part was DNA-Synthesized.

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 1476
  Illegal BamHI site found at 4894
  
• 23
  COMPATIBLE WITH RFC[23]
• 25
  COMPATIBLE WITH RFC[25]
• 1000
  COMPATIBLE WITH RFC[1000]

References

Lei S. Qi, M. H. (2013). Repurposing CRISPR as an RNA-Guided Platform for Sequence-Specific Control of Gene Expression. Cell, 1173-1183.