Part:BBa_K4779001
CMPG Pro:A yeast copper-induced reporter pathway with prm1 pro promoter
This is a copper ion-responsive signaling pathway in Saccharomyces cerevisiae based on MAPK system. When the cells were induced by copper ions, the copper ion-inducible promoter cup1 expresses MFα2, generating pheromones. Through the amplification of pheromones signal pathway, the pprm1pro promoter was activated to express GFP, thereby reflecting the concentration of copper ions.
Construction
CMPG pro is a new composite part (BBa_K4779001). We obtained the gene sequences of the promoter of Cup1 (BBa_K945002), MFα2 (BBa_K110005), the promoter of prm1 pro (BBa_K3384313), green fluorescent protein (GFP) (BBa_K3112009), and the terminator CYC1 (BBa_K4278703) from IGEM, and sent them to GENEWIZ (Suzhou genewiz Biotechnology Co., Ltd.) for synthesis.
Characterization
We subjected the engineered yeast strain BY4741-pRS415-CMPG Pro samples to a copper ion gradient treatment and subsequently conducted quantitative fluorescence measurements using flow cytometry, as illustrated in the accompanying figure. Within the range of 300 uM, we observed an increase in the signal output intensity of the sensor as the copper ion concentration rose, resulting in an expanded detection range compared to CMPG. Specifically, the signal output intensity of CMPG Pro, when exposed to copper ions at 300 uM, showed an 18.25% enhancement relative to the untreated state, which is 1.3 times greater than that of CMPG at 200 uM. This observation highlights an improved efficacy in terms of sensitivity.
Sequence and Features
- 10INCOMPATIBLE WITH RFC[10]Illegal XbaI site found at 279
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Illegal PstI site found at 49 - 12INCOMPATIBLE WITH RFC[12]Illegal SpeI site found at 343
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Illegal PstI site found at 49 - 21INCOMPATIBLE WITH RFC[21]Illegal BglII site found at 55
Illegal BamHI site found at 510
Illegal XhoI site found at 8 - 23INCOMPATIBLE WITH RFC[23]Illegal XbaI site found at 279
Illegal XbaI site found at 517
Illegal SpeI site found at 343
Illegal SpeI site found at 523
Illegal PstI site found at 49 - 25INCOMPATIBLE WITH RFC[25]Illegal XbaI site found at 279
Illegal XbaI site found at 517
Illegal SpeI site found at 343
Illegal SpeI site found at 523
Illegal PstI site found at 49
Illegal NgoMIV site found at 36 - 1000INCOMPATIBLE WITH RFC[1000]Illegal BsaI.rc site found at 2181
Illegal SapI site found at 529
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