Difference between revisions of "Part:BBa K2933212"
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==Usage and Biology== | ==Usage and Biology== | ||
| − | This composite part is made up with seven basic parts, the His tag, T7 promoter, RBS ，Linker h ，Linker f，T7 terminatorand and our target protein GIM-2. It encodes a protein which is GIM-2 fused with His tag. The fusion protein is about 27.4 kD. In order to gain the highly purified target protein, we add His tag in N-terminal of GIM-2. It is convenient for us to purify our target protein.<br> | + | This composite part is made up with seven basic parts, the His tag, T7 promoter, RBS ，Linker h ，Linker f，T7 terminatorand and our target protein GIM-2. It encodes a protein which is GIM-2 fused with His tag. Linker h is from the vector pET-28a, which connects the RBS to His tag sequence.Linker f from vector pGEX-6p-1, contains the thrombin restriction site and T7 tag.The fusion protein is about 27.4 kD. In order to gain the highly purified target protein, we add His tag in N-terminal of GIM-2. It is convenient for us to purify our target protein.<br> |
===Molecular cloning=== | ===Molecular cloning=== | ||
First, we used the vector pGEX-28a to construct our expression plasmid. And then we converted the plasmid constructed to ''E. coli'' DH5α to expand the plasmid largely.<br> | First, we used the vector pGEX-28a to construct our expression plasmid. And then we converted the plasmid constructed to ''E. coli'' DH5α to expand the plasmid largely.<br> | ||
Latest revision as of 14:03, 23 September 2019
T7 promoter+RBS b+Linker h+His+Linker f+GIM-2+T7 terminator
This part consists of T7 promoter, RBS and protein coding sequence（His+Linker f+GIM-2），and the biological module can be built into E.coli for protein expression.
Sequence and Features
- 10INCOMPATIBLE WITH RFC[10]Illegal XbaI site found at 47
Illegal PstI site found at 935 - 12INCOMPATIBLE WITH RFC[12]Illegal NheI site found at 169
Illegal PstI site found at 935 - 21COMPATIBLE WITH RFC[21]
- 23INCOMPATIBLE WITH RFC[23]Illegal XbaI site found at 47
Illegal PstI site found at 935 - 25INCOMPATIBLE WITH RFC[25]Illegal XbaI site found at 47
Illegal PstI site found at 935 - 1000COMPATIBLE WITH RFC[1000]
Usage and Biology
This composite part is made up with seven basic parts, the His tag, T7 promoter, RBS ，Linker h ，Linker f，T7 terminatorand and our target protein GIM-2. It encodes a protein which is GIM-2 fused with His tag. Linker h is from the vector pET-28a, which connects the RBS to His tag sequence.Linker f from vector pGEX-6p-1, contains the thrombin restriction site and T7 tag.The fusion protein is about 27.4 kD. In order to gain the highly purified target protein, we add His tag in N-terminal of GIM-2. It is convenient for us to purify our target protein.
Molecular cloning
First, we used the vector pGEX-28a to construct our expression plasmid. And then we converted the plasmid constructed to E. coli DH5α to expand the plasmid largely.
Figure 1. The result of PCR
References
1. Skagseth S , Akhter S , Paulsen M H , et al. Metallo-β-lactamase inhibitors by bioisosteric replacement: Preparation, activity and binding[J]. European Journal of Medicinal Chemistry, 2017, 135:159-173.
2. Wendel AF, MacKenzie CR. 2015. Characterization of a novel metallo-lactamase variant, GIM-2, from a clinical isolate of Enterobacter cloacae in Germany. Antimicrob Agents Chemother 59:1824 –1825.
3. Borra P S , Samuelsen O , Spencer J , et al. Crystal Structures of Pseudomonas aeruginosa GIM-1: Active-Site Plasticity in Metallo-beta-Lactamases[J]. Antimicrobial Agents and Chemotherapy, 2013, 57(2):848-854.
4. Susann S, Trine J C, Gro Elin K B, James S, Ørjan S, Hanna-Kirsti S. L. Role of Residues W228 and Y233 in the Structure and Activity of Metallo-β-Lactamase GIM-1. Antimicrobial Agents and Chemotherapy Jan 2016, 60 (2) 990-1002