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| 1. Double enzyme digestion of Plac_B0032 and LeuDH_T.</br> | | 1. Double enzyme digestion of Plac_B0032 and LeuDH_T.</br> |
| 2. Electrophoresis analysis of double digested result.</br></p> | | 2. Electrophoresis analysis of double digested result.</br></p> |
− | <img style="width: 60%; margin-right: 40%; margin-top: 10px; margin-bottom: 0px;" src="https://static.igem.org/mediawiki/2015/e/e2/Amoy-Notebook_Node2_figure1.png" />
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| 3. Extract double digested products.</br> | | 3. Extract double digested products.</br> |
| 4. Ligate under 16℃ for 8 hours.</br> | | 4. Ligate under 16℃ for 8 hours.</br> |
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| 1. Double enzyme digestion of P<sub>J23100</sub>_B0030 and LeuDH_T</br> | | 1. Double enzyme digestion of P<sub>J23100</sub>_B0030 and LeuDH_T</br> |
| 2. Electrophoresis analysis of double digested result.</br></p> | | 2. Electrophoresis analysis of double digested result.</br></p> |
− | <img style="width: 60%; margin-right: 40%; margin-top: 10px; margin-bottom: 0px;" src="https://static.igem.org/mediawiki/2015/e/e2/Amoy-Notebook_Node2_figure1.png" />
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| 3. Extract double digested products.</br> | | 3. Extract double digested products.</br> |
| 4. Ligate under 16℃ for 8 hours.</br> | | 4. Ligate under 16℃ for 8 hours.</br> |
| 5. Transformation</br></p> | | 5. Transformation</br></p> |
− | <img style="width: 60%; margin-right: 40%; margin-top: 10px; margin-bottom: 0px;" src="https://static.igem.org/mediawiki/2015/4/43/Amoy-Notebook_node24-2.JPG" /> | + | <img style="width: 60%; margin-right: 40%; margin-top: 10px; margin-bottom: 0px;" src="https://static.igem.org/mediawiki/2015/f/f8/Amoy-Notebook_Node24_figure2.JPG" /> |
| <p class="detail_p"></br> | | <p class="detail_p"></br> |
| 7. Pick 8 single colonies from the agar plate using sterile pipette tips. Put it into 10ml LB of chloramphenicol. Culture at 37℃,200rpm for 12~14 hours.</br> | | 7. Pick 8 single colonies from the agar plate using sterile pipette tips. Put it into 10ml LB of chloramphenicol. Culture at 37℃,200rpm for 12~14 hours.</br> |
Purpose:
Ligation of isolated circuit with RBS_B0032 and gene_leudh
Steps:
1. Double enzyme digestion of Plac_B0032 and LeuDH_T.
2. Electrophoresis analysis of double digested result.
3. Extract double digested products.
4. Ligate under 16℃ for 8 hours.
5. Transformation
6. Pick 8 single colonies from the agar plate using sterile pipette tips. Put it into 10ml LB of chloramphenicol. Culture at 37℃,200rpm for 12~14 hours.
7. Extract the plasmids.
8. Electrophoresis analysis of plasmids.
Product:
Isolated circuit with RBS_B0032 and gene_leudh
Purpose:
Ligation of isolated circuit with RBS_B0034 and gene_leudh
Steps:
1. Double enzyme digestion of Plac_B0034 and LeuDH_TT
2. Electrophoresis analysis of double digested result.
3. Extract double digested products.
4. Ligate under 16℃ for 8 hours.
5. Transformation
6. Pick 8 single colonies from the agar plate using sterile pipette tips. Put it into 10ml LB of chloramphenicol. Culture at 37℃,200rpm for 12~14 hours.
7. Extract the plasmids
8. Electrophoresis analysis of plasmids
Product:
Isolated circuit with RBS_B0034 and gene_leudh
Purpose:
Ligation of isolated circuit with RBS_B0034 and gene_fdh
Steps:
1. Double enzyme digestion of Plac_B0032 and LeuDH_T
2. Electrophoresis analysis of double digested result
3. Extract double digested products.
4. Ligate under 16℃ for 8 hours.
5. Transformation
6. Pick 8 single colonies from the agar plate using sterile pipette tips. Put it into 10ml LB of chloramphenicol. Culture at 37℃,200rpm for 12~14 hours.
7. Extract the plasmids.
8. Electrophoresis analysis of plasmids.
Product:
Isolated circuit with RBS_B0034 and gene_fdh
Purpose:
Ligation of isolated circuit with RBS_B0030 and gene_leudh
Steps:
1. Double enzyme digestion of PJ23100_B0030 and LeuDH_T
2. Electrophoresis analysis of double digested result.
3. Extract double digested products.
4. Ligate under 16℃ for 8 hours.
5. Transformation
7. Pick 8 single colonies from the agar plate using sterile pipette tips. Put it into 10ml LB of chloramphenicol. Culture at 37℃,200rpm for 12~14 hours.
8. Extract the plasmids.
9. Electrophoresis analysis of plasmids.
Product:
Isolated circuit with RBS_B0030 and gene_leudh
Purpose:
Ligation of promoter and RBS_B0032
Steps:
1. Double enzyme digestion of Plac and RBS_B0032
2. Electrophoresis analysis of double digested result of plasmid
3. Extract double digested Plac
4. Cycle purity of digested RBS_B0032
5. Ligate under 16℃ for 8 hours.
6. Transformation
7. Pick 8 single colonies from the agar plate using sterile pipette tips. Put it into 10ml LB of chloramphenicol. Culture at 37℃,200rpm for 12~14 hours.
8. Extract the plasmids.
9. Electrophoresis analysis of plasmids.
Product:
Plasmid of Plac linked with RBS_B0032
Purpose:
Ligation of the final circuit with RBS_B0032
Steps:
1. Double enzyme digestion of circuits with RBS_B0032_gene_leudh and RBS_B0034_gene_fdh.
2. Electrophoresis analysis of double digested result.
3. Extract double digested products.
4. Ligate under 16℃ for 8 hours.
5. Transformation
6. Pick 8 single colonies from the agar plate using sterile pipette tips. Put it into 10ml LB of chloramphenicol. Culture at 37℃,200rpm for 12~14 hours.
7. Extract the plasmids.
8. Electrophoresis analysis of plasmids.
9. Verify the results by double enzyme digestion.
Product:
Final circuit of RBS_B0032
Purpose:
Ligation of the final circuit with RBS_B0034
Steps:
1. Double enzyme digestion of circuit with RBS_B0034_gene_leudh and RBS_B0034_gene_fdh.
2. Electrophoresis analysis of double digested result.
3. Extract double digested products.
4. Ligate under 16℃ for 8 hours.
5. Transformation
6. Pick 8 single colonies from the agar plate using sterile pipette tips. Put it into 10ml LB of chloramphenicol. Culture at 37℃,200rpm for 12~14 hours.
7. Extract the plasmids.
8. Electrophoresis analysis of plasmids.
9. Verify the results by double enzyme digestion.
Product:
Final circuit of RBS_B0034
Purpose:
Ligation of the final circuit with RBS_B0030
Steps:
1. Double enzyme digestion of circuit with RBS_B0030_gene_leudh and RBS_B0034_gene_fdh.
2. Electrophoresis analysis of double digested result
3. Extract double digested products.
4. Ligate under 16℃ for 8 hours.
5. Transformation
6. Pick 8 single colonies from the agar plate using sterile pipette tips. Put it into 10ml LB of chloramphenicol. Culture at 37℃,200rpm for 12~14 hours.
7. Extract the plasmids.
8. Electrophoresis analysis of plasmids.
9. Verify the results by double enzyme digestion.
Product:
Final circuit of RBS_B0030
NOTEBOOK
Initially, they used isolated enzymes, which can be disadvantageous for the reason that enzymes are always destabilized in the isolation and purification process. What's more, the cofactor NADH is rather an expensive raw material, which will enhance the cost of L-tert-leucine production. So scientists introduced whole-cell biocatalysts to L-tert-leucine production. Whole-cell biocatalysts could stabilize enzymes and reduce the addition level of cofactor NADH.
In the path of building our biobricks, we divided the circuits into two modules. One is promoter linked with RBS and the other is gene linked with terminator. The dendrogram below is our experiments detail. Click each bottom for more information.