Part:BBa_K5133005

Microcin H47

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

Brief introduction

This basic part is derived from plasmid pFB399^[1], including a DNA sequence for coding Microcin H47, an antimicrobial peptide produced by probiotic E. coli Nissle 1917. By assembling with T7 promoter (BBa_K5133000), RBS (BBa_K5133001), and T7 terminator (BBa_K5133003) derived from plasmid pJL1^[2], this part is used for the construction of composite part BBa_K5133006 to demonstrate the in vitro production of antimicrobial peptides by CFPS.

Design and characterization

The plasmid design of this biological part is shown as Figure 1, assembled with iGEM standard backbone pSB1C3. To validate the correctness of DNA sequence, result of Sanger sequencing for BBa_K5133006 show the successful assembly among T7 promoter (BBa_K5133000), RBS (BBa_K5133001), Microcin H47 (this part), and T7 terminator (BBa_K5133003) in Figure 2.

Figure 1. Schematic design of this part, generated by SnapGene.

Figure 2. Validation of DNA sequence by Sanger sequencing, generated by SnapGene.

Usages

This part is used for the construction of composite part BBa_K5133006 (Microcin H47 generator) to demonstrate the feasibility of in vitro antimicrobial peptide production by CFPS.

DNA sequence (from 5' to 3')

atgcgagaaataacagaatcacagttaagatatatttccggggcgggaggtgcgccagcgacttcagctaatgctgcaggtgctgcagctattgttggagctctcgccggaatacctggtggtccacttggggttgta gttggagccgtatctgccggtttgacaacagcaattggctcgaccgtgggaagtggtagtgccagttcttctgctggtggcggtagccatcatcatcatcatcactaa

Red font: 6×His-Tag, for the detection by Western-Blot analysis

References

[1] 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

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

Sequence and Features

Assembly Compatibility:

• 10
  INCOMPATIBLE WITH RFC[10]

  Illegal PstI site found at 74
  Illegal PstI site found at 83
  
• 12
  INCOMPATIBLE WITH RFC[12]

  Illegal PstI site found at 74
  Illegal PstI site found at 83
  
• 21
  COMPATIBLE WITH RFC[21]
• 23
  INCOMPATIBLE WITH RFC[23]

  Illegal PstI site found at 74
  Illegal PstI site found at 83
  
• 25
  INCOMPATIBLE WITH RFC[25]

  Illegal PstI site found at 74
  Illegal PstI site found at 83
  
• 1000
  COMPATIBLE WITH RFC[1000]