Team:Toulouse/Parts

iGEM Toulouse 2015

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In the list below you will find an overview over the BioBrick parts we added to the registry, which were created by the iGEM Toulouse 2015 team.

For our project, we worked on three different modules : attract the varroa, kill the mite and finally the circadian switch to alternatively produce the two molecules of interest, butyrate during the day and formate during the night.

Name Type Genic construction Lenghth (bp) References
BBa_K1587000 Composite (with RBS) RBS-ho1 744 [13]
BBa_K1587001 Basic part tesB 861 [3][4][5]
BBa_K1587002 Composite (with RBS) RBS-pcyA 796 [13]
BBa_K1587003 Basic part crt 786 [1] [2] [3] [4] [7]
BBa_K1587004 Basic part (others) pBla-RBS-ccr-RBS-hbd-RBS-crt-RBS- tesB-RBS-atoB-Terminator 5175 [1] [2] [3] [4] [6]
BBa_K1587005 Basic part (others) pBla-RBS-hbd-RBS-crt-RBS- tesB-RBS-atoB-Terminator 3827 [1] [2] [3] [4] [6]
BBa_K1587006 Basic part (others) pOmpC-LacIbox-RBS-cI 905 [12][13]
BBa_K1587007 Basic part (others) RBS-pflB-RBS-pflA-Terminator 3093 [7] [8] [9] [10] [11]

Attraction (butyrate pathway)

The chassis we used is Escherichia coli, and this bacterium is not able to naturally produce butyrate. That is why we introduced genes from others bacterial strains to synthesize this molecule.

Basic parts

tesB (BBa_K1587001)

Gene from Escherichia coli involved in the butyrate pathway that enables its production directly from acyl-coAs. This group of enzymes catalyzes the hydrolysis of acyl-CoAs into free fatty acid (in our case, butyryl-coA into butyrate) plus reduced coenzyme A (CoA-SH).

crt (BBa_K1587003)

Gene from Clostridium acetobutylicum was introduced in our bacterium after codon optimization in order to obtain a better expression in E.coli. The crt enzyme substrate is 3-hydroxybutyryl CoA, and the product is Crotonyl CoA. This reaction does not need any coenzyme.

References

  • [1] REFERENCE 1
  • [2] REFERENCE 2 AVEC UN LIEN See more
  • [3] REFERENCE 2 AVEC UN LIEN qui ouvre dans une nouvelle fenĂȘtre See more