Team:NTNU Trondheim/Protocols

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Revision as of 07:57, 15 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
show technical details
{{{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

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.

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