Team:TMU-Tokyo/Notebook/Experiment/6th week (9.17 - 9.23)

■Experiment
1st week (8.13 - 8.19)
2nd week (8.20 - 8.26)
3rd week (8.27 - 9. 2)
4th week (9. 3 - 9. 9)
5th week (9.10 - 9.16)
6th week (9.17 - 9.23)
7th week (9.24 - 9.30)

Experiment

■6th week (9.17 - 9.23)

■17th Sep
・Densitometry of backbone plasmids 1. Diluted DNA samples 50 times with a solvent. 2. Turned on the machine; GeneQuant 100. 3. Poured the solvent 100 μl into a cuvette and adjusted 0. 4. Threw the solvent, poured the DNA sample. 5. Measured the concentration. Results Concentration of backbone plasmid no.1 was 18 ng/ μl. no.2 was 5 ng/ μl. 1. Mixed following milliQ 3 μl DNA solution 40 μl 1 x M buffer 5 μl XbaI 1 μl HindIII 1 μl Total 50 μl 2. Incubated at 37 °C for 2 hours. Electrophoresis 1. Put an agalose gel into the tank, and poured TBE buffer. 2. Mixed DNA samples: loading buffer = 9: 1. Loaded samples into wells. 3. Electrophoresed, stopped when samples move to 2/3. Result We couldn’t obtain the target band.

18th Sep Densitometry of backbone(Kanamycin tolerance) plasmids 1. Diluted DNA samples 50 times with a solvent. 2. Turned on the machine; GeneQuant 100. 3. Poured the solvent 100 μl into a cuvette and adjusted 0. 4. Threw the solvent, poured the DNA sample. 5. Measured the concentration. Results concentration of backbone plasmid no.1 was 12ng/μl no.2 was 80ng/μl Digestion 1. Mixed following milliQ 23μl DNA solution 20μl 1 x M buffer 5 μl XbaI 1 μl HindIII 1 μl Total 50 μl 2. incubated for 2 hours at 37℃. Electrophoresis 1. Put an agalose gel into the tank, and poured TBE buffer. 2. Mixed DNA samples: loading buffer = 9: 1. Loaded samples into wells. 3. Electrophoresed, stopped when samples move to 2/3. Result We can obtain the target band. Gel extraction 1. Excised the DNA fragment from an agarose gel. For each 100 mg of agarose gel added 200 μl Buffer NT. 2. Incubated sample for 5 – 10 minutes at 50 °C. Vortexed the sample briefly every 2 – 3 minuets until the gel slice was completely dissolved. 3. Placed a NucleoSpin Extract II Columu into a Collection Tube and loaded the sample. Centrifuged for 1 minute at 11,000 x g. Discarded flow-through and placed the column back into the collection tube. 4. Added 700 μl Buffer NT3 to the NucleoSpin Extact II Column. Centrifuged for 1 minute at 11,000 x g. Discarded flow-through and placed the column back into the collection tube. 5. Centrifuged for 2 minutes at 11,000 x g to remove Buffer NT3 completely. 6. Placed the NucleoSpin Extract II Column into a new 1.5 ml microcentrifuge tube. Added 50 μl Buffer NE and incubated at room temperature for 1 minute. Centrifuged for 1 minute at 11,000 x g. Densitometry of backbone(Kanamycin tolerance) plasmids 1. Diluted DNA samples 50 times with a solvent. 2. Turned on the machine; GeneQuant 100. 3. Poured the solvent 100 μl into a cuvette and adjusted 0. 4. Threw the solvent, poured the DNA sample. 5. Measured the concentration. Results concentration of backbone plasmid no.1 was 15ng/μl fdh4AB was 13ng/μl Ligation of fdh4AB.
Mixed following
Vector DNA 0.5 μl
Insert DNA 5.5 μl
Total 6 .0μl
Ligation of Device1.
Mixed following
μ Vector DNA 0.5 μl
Insert DNA 3.0 μl
TE 1.5 μl Total 5 μl
3. Added Ligation Mix 6 μl to fdh4AB solution and 5μl to Device1
Incubated at room temperature for 10 minutes.
Transformation 1. Melt competent cells on ice. 2. Poured DNA solution (pSB1K3) 10 μl into competent cells calmly. 3. Incubated on the ice for 40 minutes. 4. Heat shocked at 42 °C for 45 seconds 5. Incubated on the ice for 2-3 minutes. 6-1 (fdh4AB) placed on a medium (Amp), incubated at 37℃ for 30 minutes. 6-2 (Device1) added 600 μl LB medium, and then incubated for 30 minutes at 37 °C. 7-2. Plated on an agar medium, and then incubated at 37 °C for overnight.

19th Sep Densitometry of fdh4AB 6. Diluted DNA samples 50 times with a solvent. 7. Turned on the machine; GeneQuant 100. 8. Poured the solvent 100 μl into a cuvette and adjusted 0. 9. Threw the solvent, poured the DNA sample. 10. Measured the concentration. Results concentration of fdh4AB no.1 was 358ng/μl no.2 was 40ng/μl no.3 was 35 ng/μl Digestion 1. Mixed following no.1 no.2 milliQ 35.5μl 15.5ng/μl DNA solution 10μl 30ng/μl 1 x M buffer 2.5μl 2.5ng/μl XbaI 1.0μl 1.0ng/μl HindIII 1.0μl 1.0ng/μl Total 50 μl 50ng/μl 2. incubated for 2 hours at 37℃ Gel extraction 1. Excised the DNA fragment from an agarose gel. For each 100 mg of agarose gel added 200 μl Buffer NT. 2. Incubated sample for 5 – 10 minutes at 50 °C. Vortexed the sample briefly every 2 – 3 minuets until the gel slice was completely dissolved. 3. Placed a NucleoSpin Extract II Columu into a Collection Tube and loaded the sample. Centrifuged for 1 minute at 11,000 x g. Discarded flow-through and placed the column back into the collection tube. 4. Added 700 μl Buffer NT3 to the NucleoSpin Extact II Column. Centrifuged for 1 minute at 11,000 x g. Discarded flow-through and placed the column back into the collection tube. 5. Centrifuged for 2 minutes at 11,000 x g to remove Buffer NT3 completely. 6. Placed the NucleoSpin Extract II Column into a new 1.5 ml microcentrifuge tube. Added 50 μl Buffer NE and incubated at room temperature for 1 minute. Centrifuged for 1 minute at 11,000 x g. Densitometry of backbone(Kanamycin tolerance) plasmids 1. Diluted DNA samples 50 times with a solvent. 2. Turned on the machine; GeneQuant 100. 3. Poured the solvent 100 μl into a cuvette and adjusted 0. 4. Threw the solvent, poured the DNA sample. 5. Measured the concentration. Results concentration of fdhAB no.1 was 55ng/μl no.2 was 23ng/μl Ligation of fdh4AB.
1. Mixed following no.1
no.2 Vector DNA 0.5 μl 0.5μl
Insert DNA 0.5 μl 3.0μl
TE 3.1μl 1.5μl
Total 5.0μl 5.0μl
Ligation of Device1.
Vector DNA 0.5 μl
Insert DNA 3.0 μl
TE 1.5 μl Total 5.0 μl
2. Added Ligation Mix 5 μl to fdh4AB solution and 5μl to Device1
3. Incubated at room temperature for 10 minutes.
Transformation 1. Melt competent cells on ice. 2. Poured DNA solution (pSB1K3) 10 μl into competent cells calmly. 3. Incubated on the ice for 40 minutes. 4. Heat shocked at 42 °C for 45 seconds 5. Incubated on the ice for 2-3 minutes. 6-1 (fdh4AB) Placed on a medium (Amp), incubated at 37℃ for 30 minutes. 6-2 (Device1) Poured into SOC medium, incubated for 30 minutes at 37℃. 7-2. Plated on an agar medium, and then incubated at 37 °C for overnight.