Team:Paris Saclay/Notebook/July/28

From 2014.igem.org

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(E - Salicylate Inducible Suppressing System)
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{{Team:Paris_Saclay/notebook_header}}
=Monday 28th July=
=Monday 28th July=
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==Lab work==
==Lab work==
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===The frame coli Odor free===
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===A - The frame===
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====Preparation of electrocompetent cells====
====Preparation of electrocompetent cells====
''by Arnaud & Romain''
''by Arnaud & Romain''
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''by Arnaud & Romain''
''by Arnaud & Romain''
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Strain used: E. coli MG1655Z1 and E. coli MG1655. Plasmid used: BT640 (code for a flipase for E. coli)
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Strain used: E. coli MG1655Z1 and E. coli MG1655. Plasmid used: BT340 (code for a flipase for E. coli)
Make 2 électroporations in cold electroporation cuvettes:
Make 2 électroporations in cold electroporation cuvettes:
*A control cuvette(without DNA): 50µl of E. coli MG1655Z1 or E. coli MG1655.
*A control cuvette(without DNA): 50µl of E. coli MG1655Z1 or E. coli MG1655.
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*A second cuvette: 50µl of E. coli MG1655Z1 or E. coli MG1655 culture + 1µl of BT640 plasmid.
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*A second cuvette: 50µl of E. coli MG1655Z1 or E. coli MG1655 culture + 1µl of BT340 plasmid.
Electroporation : 2500V, 132W, 40µF.  
Electroporation : 2500V, 132W, 40µF.  
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<span style="color:red">Note: although we have 2 cultures to prepare, it is recommended to prepare 3 tubes because of probable uncertainties when measuring volumes.</span>
<span style="color:red">Note: although we have 2 cultures to prepare, it is recommended to prepare 3 tubes because of probable uncertainties when measuring volumes.</span>
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===C - Lemon scent===
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===Salicylate Inducible Suppressing System===
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====Liquid Culture====
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''by Fabio''
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Due to an widespread infection of the cells made the [https://2014.igem.org/Team:Paris_Saclay/Notebook/July/25 25th July], we collected the original strain DY330 to verify it's legitimacy.
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2ml LB + 20μl of DY330. We incubate cultures at 30°C.
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===E - Salicylate Inducible Suppressing System===
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====Plasmid DNA Purification====
====Plasmid DNA Purification====
''by Fabio''
''by Fabio''
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Protocol:
Protocol:
# Add 1μl of the plasmid to digest.
# Add 1μl of the plasmid to digest.
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# Add 2μl of buffer.
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# Add 2μl of buffer (Fast Digest Buffer 10x).
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# Add 0,5μl of enzyme (in this case, '''NotI''')
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# Add 0,5μl of enzyme (in this case, '''NotI''').
# Complete with 16,5μl of H<sub>2</sub>O.
# Complete with 16,5μl of H<sub>2</sub>O.
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# Mix gently.
# Incubate at 37°C for one hour.
# Incubate at 37°C for one hour.
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'''Results:'''
'''Results:'''
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#
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# Success, we can clearly see both parts of the digestion product.
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#
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# Same conclusion of number 1.
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#
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# We can see one part of the digestion very clear and the other one (lower down) is almost invisible. We'll use a strong concentration in the future.
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#
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# Both parts are not strong. We'll discontinue this clone.
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[https://2014.igem.org/Team:Paris_Saclay/Protocols/BioBrick_Assembly#Segregate_process BioBrick Assembly - Segregate Process Protocol]
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===Lemon scent===
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====Liquid Culture====
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''by Fabio''
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Due to an widespread infection of the cells made the [https://2014.igem.org/Team:Paris_Saclay/Notebook/July/25 25th July], we collected the original strain DY330 to verify its legitimacy.
 +
 
 +
2ml LB + 20μl of DY330. We incubate cultures at 30°C.
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==Photo of the Day==
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[[File:Paris Saclay 28_july.jpg|600px|center]]
'''Members present''':
'''Members present''':
* Instructors and advisors: Solenne and Sylvie.
* Instructors and advisors: Solenne and Sylvie.
* Students: Arnaud, Fabio, Romain, Sean and Terry.
* Students: Arnaud, Fabio, Romain, Sean and Terry.
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[https://2014.igem.org/Team:Paris_Saclay/Notebook Back to the calendar]
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{{Team:Paris_Saclay/notebook_footer}}

Latest revision as of 15:43, 14 October 2014

Contents

Monday 28th July

Lab work

The frame coli Odor free

Preparation of electrocompetent cells

by Arnaud & Romain

Strain used: E. coli MG1655Z1 and E. coli MG1655.

Protocol:

Two dilution of 200µl of bacterial culture MG1655Z1 and E. coli MG1655 in 15ml of LB at 30°C for each strain.

When the culture OD650 = 0,6:

  • put in ice during 10min.
  • centriguge at 4°C, 5min, 4000rpm.
  • Discard the supernatant, and resuspend the pellet in 15ml glycerol 10% COLD.
  • centriguge at 4°C, 5min, 4000rpm.
  • Discard the supernatant, and resuspend the pellet in 15ml glycerol 10% COLD.
  • centriguge at 4°C, 5min, 4000rpm.
  • Discard the supernatant, and resuspend the pellet in 200µl glycerol 10% COLD.

Transformation of electrocompetent cells

by Arnaud & Romain

Strain used: E. coli MG1655Z1 and E. coli MG1655. Plasmid used: BT340 (code for a flipase for E. coli)

Make 2 électroporations in cold electroporation cuvettes:

  • A control cuvette(without DNA): 50µl of E. coli MG1655Z1 or E. coli MG1655.
  • A second cuvette: 50µl of E. coli MG1655Z1 or E. coli MG1655 culture + 1µl of BT340 plasmid.

Electroporation : 2500V, 132W, 40µF.

After that, add 1ml of cold LB in each cuvette and transfer in 2 tubes.

Spread on 8 dishes LB + Cm:

  • 20µl of control E. coli MG1655Z1 (without plasmid)
  • 50µl of transformed E. coli MG1655Z1 with BT340.
  • 100µl of transformed E. coli MG1655Z1 with BT340.
  • Transformed and concentrated E. coli MG1655Z1 with BT340.
  • 20µl of control E. coli MG1655 (without plasmid)
  • 50µl of transformed E. coli MG1655 with BT340.
  • 100µl of transformed E. coli MG1655 with BT340.
  • Transformed and concentrated E. coli MG1655Z1 with BT340.

Incubate for a night at 30°C.

PCR

by Sean

Cultures used: MG1655Z1 10I and MG1655 100I.

Protocol

Note: although we have 2 cultures to prepare, it is recommended to prepare 3 tubes because of probable uncertainties when measuring volumes.

Salicylate Inducible Suppressing System

Plasmid DNA Purification

by Fabio

  • BBa_J61051 Cl.1
  • BBa_J61051 Cl.2
  • BBa_K228001 Cl.1
  • BBa_K228001 Cl.2

from Bacterial Culture made the 25th July.

At the end of the process, we collected 4ml of each clone 1 plus 1ml of glycerol (80%) and stored at -80°C.

Protocol

Digestion to check

by Fabio

Once we have a good amount of our BioBricks' plasmid, we did the first digestion (verification). Both BioBricks were digested with the enzyme NotI, that separates both BioBricks' core from theirs vectors. The graphic result of this process is shown in the next step.

Protocol:

  1. Add 1μl of the plasmid to digest.
  2. Add 2μl of buffer (Fast Digest Buffer 10x).
  3. Add 0,5μl of enzyme (in this case, NotI).
  4. Complete with 16,5μl of H2O.
  5. Mix gently.
  6. Incubate at 37°C for one hour.

Electrophoresis

LU000101a.jpg

by Fabio

The Electrophoresis was used to verify the success of the Digestion and the success of the plasmid DNA purification at the same time.

  1. BBa_J61051 Cl.1
  2. BBa_J61051 Cl.2
  3. BBa_K228001 Cl.1
  4. BBa_K228001 Cl.2

Results:

  1. Success, we can clearly see both parts of the digestion product.
  2. Same conclusion of number 1.
  3. We can see one part of the digestion very clear and the other one (lower down) is almost invisible. We'll use a strong concentration in the future.
  4. Both parts are not strong. We'll discontinue this clone.

BioBrick Assembly - Segregate Process Protocol

Lemon scent

Liquid Culture

by Fabio

Due to an widespread infection of the cells made the 25th July, we collected the original strain DY330 to verify its legitimacy.

2ml LB + 20μl of DY330. We incubate cultures at 30°C.


Photo of the Day

Paris Saclay 28 july.jpg

Members present:

  • Instructors and advisors: Solenne and Sylvie.
  • Students: Arnaud, Fabio, Romain, Sean and Terry.

Back to the calendar