Part:BBa_K2933244

RBS b+Linker h+His+Linker a+Sumo+Linker b+NDM-23+T7 terminator

This part consists of RBS, protein coding sequence(His+Linker a+Sumo+Linker b+NDM-23) and T7 terminator,and the biological module can be build into E.coli for protein expression. This part can be prefaced with promoters of different strengths and types to regulate expression function.

Sequence and Features

Assembly Compatibility:

• 10
  INCOMPATIBLE WITH RFC[10]

  Illegal EcoRI site found at 298
  
• 12
  INCOMPATIBLE WITH RFC[12]

  Illegal EcoRI site found at 298
  Illegal NheI site found at 75
  Illegal NheI site found at 1218
  
• 21
  INCOMPATIBLE WITH RFC[21]

  Illegal EcoRI site found at 298
  Illegal BglII site found at 187
  Illegal BamHI site found at 386
  
• 23
  INCOMPATIBLE WITH RFC[23]

  Illegal EcoRI site found at 298
  
• 25
  INCOMPATIBLE WITH RFC[25]

  Illegal EcoRI site found at 298
  
• 1000
  COMPATIBLE WITH RFC[1000]

Usage and Biology

This composite part is made up with three basic parts, the GST tag, the cutting site of Prescission Protease and our target protein NDM-23. It encodes a protein which is NDM-23 fused with GST tag. The fusion protein is about 40.5 kD. In order to gain the highly purified target protein, we add GST tag in N-terminal of NDM-23 and combine the two parts with the cutting site of Prescission Protease. The fusion protein can be cut off at the cutting site by Prescission Protease. It is convenient for us to purify our target protein.

Molecular cloning

First, we used the vector pGEX-6p-1 to construct our expression plasmid. And then we converted the plasmid constructed to E. coli DH5α to expand the plasmid largely.

Figure 1. Left: The PCR result of NDM-23. Right: The verification results by enzyme digestion.