Part:BBa_K4421021
NFAT-RE promotor
This part is a CAR inducible promoter containing six NFAT-RE sites in a minimal IL-2 promoter to generate CAR response elements, which was placed upstream of the transcription factor Gal4-KRAB.In our engineered NK-92 cells, NFAT was coupled with KRAB activation after CAR stimulation.
Usage and Biology
This part can serve as a downstream promotor of CAR recognition in synthetic immunology, especially in constructing CAR-classis cells with unique circus.Together with synnotch,we can really do a lot.
supplementary information
It consists of six NFAT-RE sites. NFAT-RE can bind with NFAT factors, thus activating expression of the downstream genes, which is original from the IL-2 promotor. The regulation of IL-2 gene was revealed comprehensively during last century. Several factors are required for induction of the IL-2 gene after stimulation, including NFAT1, NF-KB, AP-1, and octamer-binding proteins(shapiro et al.,1994). It was previously reported that synthetic NFAT promoter could be successfully applied in CAR-T cells (Chinnasamy D et al.,2012) .However,in NK-92 cells, a previous study showed that reporter expression and fold induction from the 4xNFAT promoter was very modest (kulemzin, S.V. et al, 2019). So we designed the NFAT-RE with 6xNFAT and the expression test with GFP showed that it did work in our project. Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12INCOMPATIBLE WITH RFC[12]Unknown
- 21INCOMPATIBLE WITH RFC[21]Unknown
- 23INCOMPATIBLE WITH RFC[23]Unknown
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]
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