Part:BBa_K2132001
CsgASpyCatcherHisTag
This is the subunit of the biofilm of E. Coli Curli system linked to SpyCatcher and HisTag. The two added parts can be used for various functions with SpyTag and other His tag-binding materials like quantum dots.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21INCOMPATIBLE WITH RFC[21]Illegal XhoI site found at 841
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]
1. Congo Red：successful secretion and expression
After CR dye, the figure indicates that the His-CsgA-SpyCatcher-Histag mutant induced by 0.25 μg ml-1 of aTc successfully secreted a thin-layer biofilm on the plate which are stained to brown-red color by CR, compared to the negative control with no inducer. (Because the ratio between Congo Red dye and Brilliant Blue dye is not in the best state which leads to the unapparent phenomenon through the lens, the brown red biofilm is easy to be identified visually.) This assay also proved that the new and challenging construction of appending a large protein onto CsgA subunits will work accurately and effectively.
Functional Parameters
| None |