Coding
CcdA

Part:BBa_K4137000

Designed by: Clifford S Chang   Group: iGEM22_GEMS_Taiwan   (2022-08-20)


CcdA-6xHis Antitoxin

BBa_K4137000 codes for the CcdA protein, a component of the CcdA-CcdB toxin-antitoxin system. CcdA binds with CcdB which inhibits CcdB from targeting DNA gyrase thus preventing DNA double-strand breaks.


Fig.1 ccdA with C-Terminal 6x His-Tag.

Characterization

We obtained the sequence for ccdA from IDT through gblock synthesis. Since we aimed to develop determine how different combinations of our toxin-antitoxin system components (ccdA, ccdB, mleR) affect one another's activity to verify our kill switch theory, we designed our constructs with biobrick restriction sites that bracket our genetic components--to insert one of our components into our backbone pSB1C3, we would cut at EcoRI and SpeI for both the insert and the vector. We also flanked each component with a purification tag to observe their expression levels.

Fig.2 ccdA with E-S cut sites.

Sequence and Features

Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    COMPATIBLE WITH RFC[12]
  • 21
    COMPATIBLE WITH RFC[21]
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]



[edit]
Categories
Parameters
None