Team:NTNU Trondheim/Protocols

From 2014.igem.org

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<a class="nb-week" href="#20">Glucose oxidase</a>
<a class="nb-week" href="#20">Glucose oxidase</a>
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<a class="nb-week" href="#21">Left flank + kan + right flank</a>
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<div style="top:52px;margin-left:-22px">Organisms</div>
<div style="top:52px;margin-left:-22px">Organisms</div>
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<a class="nb-week" href="#21"><i>Escherichia coli</i> DH5&#945;</a>
 
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<a class="nb-week" href="#22"><i>Synechocystis sp. PCC 6803</i></a>
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<a class="nb-week" href="#22"><i>Escherichia coli</i> DH5&#945;</a>
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<a class="nb-week" href="#23"><i>Synechocystis sp. PCC 6803</i></a>
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<div style="top:55px;margin-left:-29px">Calculations</div>
<div style="top:55px;margin-left:-29px">Calculations</div>
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<a class="nb-week" href="#23">Transformation efficiency</a>
 
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<a class="nb-week" href="#24">Enzyme amount</a>
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<a class="nb-week" href="#24">DNA concentration</a>
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<a class="nb-week" href="#25">DNA concentration</a>
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Revision as of 00:10, 17 October 2014

Team:NTNU Trondheim/Protocols - 2014.igem.org

 

Team:NTNU Trondheim/Protocols

From 2014.igem.org

Team:NTNU_Trondheim/Protocols - 2014.igem.org

 

Team:NTNU_Trondheim/Protocols

From 2014.igem.org

NTNU Genetically Engineered Machines

Protocols

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Liquid Broth (LB)

Recipe
Antibiotic additions
Antibiotic Stock concentration Final concentration Dillution factor Solvent Storage temperature
Ampicillin 50 mg / mL 50 μg / mL 1000 Filter sterilized H2O 4 °C
Chloramphenicol30 mg / mL30 μg / mL 1000Ethanol-20 °C
Kanamycin50 mg / mL30 μg / mL1000Filter sterilized H2O4 °C
Spectinomycin50 mg / mL50 μg / mL1000Filter sterilized H2O4 °C

Ingredients:

  • Tryptone (10g)
  • NaCl (10g)
  • Yeast Extract (5g)

  1. Fill with 1 L of distilled / filtered H2O.
  2. Autoclave at 121 °C for 20 minutes.
  3. Add antibiotics if needed, after the medium has cooled down.

Super Optimal Broth (S.O.B.)

Recipe
show technical details
{{{tech}}}

Made LB plates with ampicillin and ampicillin + kanamycin.

yB medium

Recipe
{{{tech}}}

Ingredients:

  • Yeast extract (2.5g)
  • Bactotryptone (10g)
  • KCL (0.38g)

  1. Fill with 0.5 L of distilled / filtered H2O.
  2. Add KOH until the pH is 7.4, then autoclave at 121 °C for 20 minutes.
  3. Add 17 mL sterile 1M MgSO4

Synechocystis medium

Recipe
{{{tech}}}

To grow Synechocystis cultures, BG-11 medium was made according to the recipe found on the PhotoSynLab wiki.

Gibson Assembly

Protocol from New England Biolabs
show technical details
{{{tech}}}


  1. Set up the following reaction on ice:

    2.   Recommended Amount of Fragments Used for Assembly
    2-3 Fragment Assembly 4-6 Fragment Assembly Positive Control**
    Total Amount of Fragments 0.02–0.5 pmols*
    X μl    		 0.2–1 pmols*
    X μl    		 10 μl
    Gibson Assembly Master Mix (2X) 10 μl 10 μl 10 μl
    Deionized H2O 10-X μl 10-X μl 0
    Total Volume 20 μL*** 20 μL*** 20 μL
    * Optimized cloning efficiency is 50–100 ng of vectors with 2–3 fold of excess inserts. Use 5 times more of inserts if size is less than 200 bps. Total volume of unpurified PCR fragments in Gibson Assembly reaction should not exceed 20%.
    ** Control reagents are provided for 5 experiments.
    *** If greater numbers of fragments are assembled, additional Gibson Assembly Master Mix may be required.


  2. Incubate samples in a thermocycler at 50°C for 15 minutes when 2 or 3 fragments are being assembled or 60 minutes when 4-6 fragments are being assembled. Following incubation, store samples on ice or at –20°C for subsequent transformation.

    Note: Extended incubation up to 60 minutes may help to improve assembly efficiency in some cases (for further details see FAQ section).

  3. Transform NEB 5-alpha Competent E. coli cells (provided with the kit) with 2 μL of the assembly reaction, following the transformation protocol.

DNA isolation and cleaning

{{{tech}}}

For plasmid isolation, the Promega Wizard Plus SV Minipreps DNA Purification System A1460 Miniprep protocol was used. For PCR product isolation, the QIAquick PCR Purification kit was used.

DNA digestion

{{{tech}}}

DNA digests for both ligation and verification used the protocol in the PhotoSynLab wiki.

PCR

{{{tech}}}

The touchdown PCR procedure detailed on the PhotoSynLab wiki was used to amplify DNA.

Nanodrop

{{{tech}}}

A NanoDrop ND-1000 Spectrophotometer was used to determine DNA concentrations.

3A assembly

{{{tech}}}

3A assembly was conducted according to the iGEM 3A assembly protocol.

Ligation

{{{tech}}}

Ligation was performed according to the protocol outlined on the PhotoSynLab wiki.

Transformation (Escherichia coli)

{{{tech}}}

The protocols used for preparing competent DH5a cells, as well as the heat-shock transformation procedure employed can be found at the PhotoSynLab wiki.

Transformation (Synechocystis sp. PCC 6803)

{{{tech}}}

The transformation procedure for transforming Synechocystis can be found at the PhotoSynLab wiki.

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