Difference between revisions of "Part:BBa K3332053"

Latest revision as of 23:32, 27 October 2020

J23100-RBS-Lpp-OmpA-GOX-terminator

We anchored GOX protein onto membranes through Lpp-OmpA to catalyze the reaction of glyphosate to form glyoxalic acid and AMPA and add his-tag to purify the protein. We use K880005 to construct the expression system and anchor GOX on the surface of E.coli.

Biology

        Lpp-OmpA is an anchor protein from E. coli, which can anchor its passenger protein to the cell membrane. It has been widely used in cell-surface display. GOX, also known as EcAKR4-1, is found in Echinochloa colona. It can decompose glyphosate into AMPA and glyoxylic acid. GOX is fused at N terminal with Lpp-OmpA so that GOX can be displayed on the surface of E. coli. ^[1][2]

Fig 1. Mechanism of GOX on the surface of E. Coli.

Usage

        Here, we used BBa_K880005 to construct the expression system and obtained the composite part BBa_K3332053, which may achieve surface display of GOX on our engineered bacteria. Due to the limited time, we did not get the gene in time. As a result, there is a lack of data about this part. The progress of this part remains in the stage of design.

Fig 2. Gene circuit of Lpp-OmpA-GOX.

References

1. ↑ Pan L, Yu Q, Han H, et al. Aldo-keto Reductase Metabolizes Glyphosate and Confers Glyphosate Resistance in Echinochloa colona[J]. Plant Physiol, 2019, 181(4): 1519-1534.
2. ↑ http://2016.igem.org/Team:TJUSLS_China

Sequence and Features