Difference between revisions of "Part:BBa K5133000"

Revision as of 06:17, 27 July 2024

T7 promoter (from plasmid pJL1)

Group: GEC-China (iGEM 2024, team number: #5133)

Brief introduction

This basic part is derived from plasmid pJL1 (Addgene: #69496)^[1], including a conserved DNA sequence of T7 promoter as 5'-taatacgactcactatagggaga-3'^[2]. The plasmid pJL1 is commonly used for the in vitro sfGFP expression of cell-free protein synthesis (CFPS)^[3]. Hence, this part is used for the construction of three composite parts: BBa_K5133004 (sfGFP generator), BBa_K5133006 (Microcin H47 generator), and BBa_K5133008 (Microcin M generator), for CFPS in our project.

Design and characterization

The plasmid design of this biological part is shown as Figure 1, assembled with iGEM standard backbone pSB1C3. Result of Sanger sequencing shows the correct construction of this part (Figure 2).

Usages

This part is used for the construction of three composite parts: BBa_K5133004 (sfGFP generator), BBa_K5133006 (Microcin H47 generator), and BBa_K5133008 (Microcin M generator), for CFPS in our project.

DNA sequence (from 5' to 3')

atcccgcgaaattaatacgactcactatagggagaccacaacggtttccctctagaaataattttgtttaacttt

Red font: conserved T7 promoter

References

[1] https://www.addgene.org/69496/

[2] Conrad, T. et al. Maximizing transcription of nucleic acids with efficient T7 promoters. Communications Biology 3, 439 (2020). doi: 10.1038/s42003-020-01167-x

[3] Ba, F. et al. Expanding the toolbox of probiotic Escherichia coli Nissle 1917 for synthetic biology. Biotechnology Journal 19, 2300327 (2024). doi: 10.1002/biot.202300327

Sequence and Features