Part:BBa_K3866026

ParaBAD:sbm:Terminator

Usage and Biology

This TU includes the sbm gene placed under the control of the arabinosed-induced promoter BBa_K3866000. Initially, the level 1 cloning was performed using the trc promoter BBa_K3866001, though we weren't able to isolate a colony with the desired construct, as there is a possibility that the bacteria's metabolism went out of balance so no colonies survived to be chosen for screening. Instead we used the arabinose-indused promoter, which seemed to be working as expected.

Design Notes

The coding sequence was domesticated. We removed BsmBI and BsaI sites in order to be compatible with GoldenBraid and MoClo. The sequence is cloned in a PDGB3_α1 vector and has overhangs compatible for GoldenBraid cloning.

Figure 1. The first level α module of the Propionate Production: α1:ParaBAD:RBS-smb-Double terminator

Verification of Cloning

Figure 2.: (C=Cut, U=Uncut) Restriction digestion of α1-sbm with: EcoRI, Expected bands: 6345bp, 2947bp, 597bp, Positive result: C2

Experimental Use and Experience

This part showed functionality at the following parts: BBa_K3866029, BBa_K3866031

Sequence and Features

Assembly Compatibility:

• 10
  INCOMPATIBLE WITH RFC[10]

  Illegal EcoRI site found at 2948
  
• 12
  INCOMPATIBLE WITH RFC[12]

  Illegal EcoRI site found at 2948
  
• 21
  INCOMPATIBLE WITH RFC[21]

  Illegal EcoRI site found at 2948
  Illegal BamHI site found at 1148
  Illegal BamHI site found at 2236
  
• 23
  INCOMPATIBLE WITH RFC[23]

  Illegal EcoRI site found at 2948
  
• 25
  INCOMPATIBLE WITH RFC[25]

  Illegal EcoRI site found at 2948
  Illegal NgoMIV site found at 3263
  Illegal AgeI site found at 983
  Illegal AgeI site found at 1400
  
• 1000
  INCOMPATIBLE WITH RFC[1000]

  Illegal SapI site found at 965
  

References

Akawi L, Srirangan K, Liu X, Moo-Young M, Perry Chou C. Engineering Escherichia coli for high-level production of propionate. J Ind Microbiol Biotechnol. 2015 Jul;42(7):1057-72. https://doi.org/10.1007/s10295-015-1627-4