Team:University College London/LabBook/Week15

From 2012.igem.org

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'''Conclusion''' : The transformations have been successful. Colonies will be picked and inoculated into LB media for overnight culture

Revision as of 21:40, 26 September 2012

Contents

15.1 Monday 17.09.12

Analytical digest and Gel of the following ligations:


  • BBa_K729004 + BBa_J23119-BBa_0034
  • BBa_K729003 + BBa_J23119-BBa_0034
  • BBa_K118011 + BBA_I746916



Aim - We want to check if the ligations have been successfulccessful


Methods:


Results:


Gel 1 table 1week 15.png


Conclusion: The bands that we obtained on the gel did not correspond to the sizes we were expecting. For most of the samples we could clearly see a band at around 2000 which most probably is the backbone. These confusing results may be due to mistakes during the ligation or the enzyme digestion. Contamination is another possible reason for these results.



Gel 1 table2week15.png

15.2

Tuesday (18.09.12)

Analytical digest and Gel of the following ligations:


  • BBa_K729003 + BBa_J23119-BBa_0034
  • BBa_K118011 + BBA_I712069
  • BBA_I719005 + BBA_I712069
  • BBa_I746909 + BBa_K729007


Gel2table1week15.png


Gel2table2week15.png

Conclusion: We have obtained the expected sizes on for the pcstA (BBa_K118011) +RBS-T7RNAP (BBa_I712069) ligation.


15.3 Tuesday 18.09.12

Aim – We would like to ligate BBa_I746909 to BBa_K729007 to obtain the following construct pCstA+RBS+T7RNAP+pT7+RBS+GFP+TT


Step 1 We minipreped the successful ligation of the pcstA (BBa_K118011) +RBS-T7RNAP (BBa_I712069) ligation which is our biobrick BBa_K729007


Step 2 Ligation was performed using the Biobricks BBa_I746909 and BBa_K729007 to generate a Biobrick that contains pcstA-T7RNAP-pT7-GFP-TT.


Step 3 Transformation – we plated 4 plates; plate 1 and 2 were with the transformed BBa_I746909 biobrick and plate 3 and 4 were transformed with our ligation (BBa_I746909+BBa_K729007). We are going to incubate over night at 37C and colonies picking the next day.


Aim 1 – Check the result of transformation. We expect to see growth on plates with transformed biobricks and ligations.


Traformationweek15.png



Results - The table below indicates that there was growth on all of the plates


Plate Samples Volume Inoculated Colony Formation
1 Biobrick BBa_I746909 10ul Yes
2 Biobrick BBa_I746909 90uL Yes
3 Ligation BBa_I746909+BBa_K729007 10ul Yes
4 Ligation BBa_I746909+BBa_K729007 90uL Yes


Conclusion : The transformations have been successful. Colonies will be picked and inoculated into LB media for overnight culture


Picking Colonies
Step 1 – Creating culture media: In a sterile environment, set up X numbers of falcons, each with 5mls of media.


Step 2 - Inoculating Colonies into a Selective Broth:: Add Yul of antibiotic to reach desired antibiotic concentration.


(For Ampicillin this is 50ug/ml, For Kanamycin it is 25ug/ml, for Tetracycline it is 15ug/ml, and for Chloramphenicol it is 25ug/ml)


Step 4 – Selecting a Colony: Select a clear, isolated colony and using an inoculation hoop scoop up a colony onto the tip. Deposit in the falcon tube


Step 5 - Culture: Culture your falcon tubes overnight at a temperature of 37 oC. Leave for no longer than 16 hours.

Thursday (20.09.12)

Step 2 – Inoculating Colonies into a Selective Broth. We had colonies on all the plates. We picked we picked 2 colonies from plates 1 and 2 and 4 colonies from plate 3 and 4. We grow all 12 colonies overnight.The table below indicates the volume of broth and the concentration of antibiotic required.



Step 2

Inoculating Colonies into a Selective Broth.  We had colonies on all the plates. We picked we picked 2 colonies from plates 1 and 2 and 4 colonies from plate 3 and 4. We grow all 12 colonies overnight.The table below indicates the volume of broth and the concentration of antibiotic required. 


Falcon tube Samples Broth Antibiotic (50 nu/uL)
1 Biobrick BBa_I746909 Lysogeny Broth Ampicillinn
2 Biobrick BBa_I746909 Lysogeny Broth Ampicillin
3 Biobrick BBa_I746909 Lysogeny Broth Ampicillin
4 Biobrick BBa_I746909 Lysogeny Broth Ampicillin
5 Ligation BBa_I746909+BBa_K729007 Lysogeny Broth Chloramphenicol
6 Ligation BBa_I746909+BBa_K729007 Lysogeny Broth Chloramphenicol
7 Ligation BBa_I746909+BBa_K729007 Lysogeny Broth Chloramphenicol
8 Ligation BBa_I746909+BBa_K729007 Lysogeny Broth Chloramphenicol
9 Ligation BBa_I746909+BBa_K729007 Lysogeny Broth Chloramphenicol
10Ligation BBa_I746909+BBa_K729007 Lysogeny Broth Chloramphenicol
11 Ligation BBa_I746909+BBa_K729007 Lysogeny Broth Chloramphenicol
12 Ligation BBa_I746909+BBa_K729007 Lysogeny BrothChloramphenicol