Part:BBa_K3239009:Experience

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Applications of BBa_K3239009

This construct is designed to moderately up-regulate the AOX1 promoter (P_AOX1) activity in P. pastoris GS115. It is to be homogeneously recombined into the P_AOX1-GFP strain. Upon methanol induction, P_PRM1 expression of the homogeneous PRM1 gene is activated, and further amplified via the self-upregulation of Prm1. Prm1 then activates P_MIT1, upregulating the expression of the homogeneous MIT1 gene and the heterogeneous PRM1 gene.

Unlike in wild type P. pastoris GS115 where PRM1 expression is then inhibited by Mit1, in the constructed pGMP1-pAOX1-GFP strain, the heterogeneous Prm1 is constantly self-upregulated due to the upregulation of pMIT1 by Prm1. This leads to an overall upregulation of the expression of pAOX1 transcription factors and hence shall up-regulate pAOX1 activity compared to wildtype P. pastoris.

Given that in constructed strains, pAOX1 not only expresses the yEGFP3 reporter gene, but also the homogenous AOX1 (alcohol oxidase 1) gene, the pGMP1-pAOX1-GFP strain should not only have a higher GFP yield compared to the pAOX1-GFP strain (pAOX1-GFP homologously recombined into wildtype P. pastoris GS115) but also exhibit higher growth rates since it should be more capable of metabolizing methanol.

User Reviews

For detailed modeling, design, experiment, results, and demonstration, please check our wiki:

https://2019.igem.org/Team:ShanghaiFLS_China/Model

https://2019.igem.org/Team:ShanghaiFLS_China/Design

https://2019.igem.org/Team:ShanghaiFLS_China/Experiments

https://2019.igem.org/Team:ShanghaiFLS_China/Results

https://2019.igem.org/Team:ShanghaiFLS_China/Demonstrate

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