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Usage and Biology

In order to observe the decomposition of PET by engineered bacteria, our team designed this plasmid. The plasmid mainly consists of RFP, lox66&lox71, PHpaII, Xylsmut, tetO and sfGFP genes. It is mainly used to detect and report the presence of PA and TPA, and visually monitor the expression through the GFP.When the TPA is detected by the Xylsmut, the downstream genes will be activated and transcribed——like the strain will express green fluorescence.

Fig 1. The expression level of the monellin.

What’s more, considering that in future product applications, the strain may not necessarily be used to degrade PET immediately after delivery, we designed the flipping system to cope with different use situations. During the strain is put into use to decompose the PET, we can regulate the flipping sequence to detect the presence of TPA and activate the expression of GFP. In other situations, flipping expresses the RFP and plays an alternative role. For example, when applied in a factory, in order to reduce adverse effects during fermentation production, the engineered bacteria express antibacterial products before turning over, and then turn over to express downstream degradation modules until they are put into use. Or in the field, the strain produces substances that increase fertility into the soil before the sequence is flipped. In turn, the engineered bacteria could have more purposes.

Fig 2. The expression level of the monellin.

Sequence and Features Status: 500 Content-type: text/html

Software error:

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