Team:Imperial/Protocols
From 2014.igem.org
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<div class="pure-u-1-1"> | <div class="pure-u-1-1"> | ||
+ | <h1>Protocols</h1> | ||
<p>Here you can find the protocols we used throughout the summer</p> | <p>Here you can find the protocols we used throughout the summer</p> | ||
</div> | </div> | ||
<div class="pure-u-1-1"> | <div class="pure-u-1-1"> | ||
- | < | + | <section id="protocols"> |
- | < | + | <h2>General Protocols</h2> |
- | < | + | <div class="accordion"> |
- | <div class=" | + | <h3>LB Preparation</h3> |
- | + | <div> | |
- | + | <ol> | |
- | < | + | <li>Add 25g Luria Broth to 1L demineralised water</li> |
- | <li></li> | + | <li>Autoclave</li> |
- | + | </ol> | |
- | + | </div> | |
- | + | <h3>LB Agar Preparation</h3> | |
+ | <div> | ||
+ | <ol> | ||
+ | <li>Add 25g Luria Broth and 15g Agar to 1L demineralised water</li> | ||
+ | <li>Autoclave</li> | ||
+ | </ol> | ||
+ | </div> | ||
+ | <h3>Rubidium Chloride Competent Cells</h3> | ||
+ | <div> | ||
+ | <ol> | ||
+ | <li>Inoculate 1ml of cell culture (grown overnight) into flask containing Psi Broth | ||
+ | </li> | ||
+ | <li>Incubate for 2h at 37°C</li> | ||
+ | <li>Transfer culture into sterile falcon tube, place in ice for 15min | ||
+ | </li> | ||
+ | <li>Centrifuge at 4000rpm for 5 minutes</li> | ||
+ | <li>Discard supernatant, then add TfBI buffer and resuspend pellet | ||
+ | </li> | ||
+ | <li>Place in ice for 15 minutes | ||
+ | </li> | ||
+ | <li>Centrifuge at 4000rpm for 5 minutes</li> | ||
+ | <li>Discard supernatant, then add TfBII buffer and resuspend pellet | ||
+ | </li> | ||
+ | <li>Produce 50ul aliquots</li> | ||
+ | </ol> | ||
+ | </div> | ||
+ | <h3>Heat-Shock Transformation</h3> | ||
+ | <div> | ||
+ | <ol> | ||
+ | <li>Add insert DNA to cell aliquot</li> | ||
+ | <li>Place on ice for 15 minutes</li> | ||
+ | <li>Heat-shock: place in a 42°C heat-block for 45 seconds</li> | ||
+ | <li>Place samples back on ice for 2 minutes</li> | ||
+ | <li>Add LB</li> | ||
+ | <li>Incubate at 37°C for 30-60 minutes</li> | ||
+ | <li>Centrifuge at 4000rpm for 5 minutes</li> | ||
+ | <li>Discard 300uL LB</li> | ||
+ | <li>Resuspend cells in remaining 200uL LB</li> | ||
+ | <li>Plate out</li> | ||
+ | <li>Incubate at 37°C overnight.</li> | ||
+ | |||
+ | |||
+ | </ol> | ||
+ | |||
+ | |||
+ | </div> | ||
+ | <h3>80% Glycerol Preparation</h3> | ||
+ | <div> | ||
+ | <ol> | ||
+ | <li>Add 80ml 99.7% glycerol to 20ml demineralized water</li> | ||
+ | <li>Autoclave</li> | ||
+ | </ol> | ||
+ | </div> | ||
+ | <h3>Glycerol Stock Preparation</h3> | ||
+ | <div> | ||
+ | <ol> | ||
+ | <li>Cultures plated on LB Agar + antibiotic and grown at 37°C overnight.</li> | ||
+ | <li>A 5ml LB culture in LB+antibiotic inoculated from a single, freshly growing colony.</li> | ||
+ | <li>Cultivate for 16h at 37°C, with constant shaking</li> | ||
+ | <li>0.5ml of this culture inoculated into sterile vial</li> | ||
+ | <li>Add 0.5ml of 80% glycerol</li> | ||
+ | <li>Vortex</li> | ||
+ | <li>Spin down</li> | ||
+ | <li>Freeze them at -80 degrees</li> | ||
+ | |||
+ | |||
+ | |||
+ | </ol> | ||
+ | |||
+ | </div> | ||
+ | <h3>QIAprep Spin Miniprep Kit</h3> | ||
+ | <div> | ||
+ | <div class="pure-g"> | ||
+ | <div class="pure-u-1-2"> | ||
+ | <ul> | ||
+ | <li>Materials per sample | ||
+ | <ul> | ||
+ | <li>250ul P1 buffer (suspension buffer)</li> | ||
+ | <li>250ul P2 buffer (Lysis buffer)</li> | ||
+ | <li>350ul N3 buffer</li> | ||
+ | <li>750ul PE buffer</li> | ||
+ | <li>500ul PE buffer</li> | ||
+ | <li>Columns</li> | ||
+ | </ul> | ||
+ | </li> | ||
+ | </ul> | ||
+ | </div> | ||
+ | <div class="pure-u-1-2"> | ||
+ | <ol> | ||
+ | <li>Spin cells down at 4000rpm for 10 minutes</li> | ||
+ | <li>Discard supernatant (LB)</li> | ||
+ | <li>Resuspend pellet in P1 buffer</li> | ||
+ | <li>Transfer to labeled Eppendorf tube</li> | ||
+ | <li>Add P2 buffer. Solution should turn blue</li> | ||
+ | <li>Invert tubes 4-6 times, then wait for 2 minutes</li> | ||
+ | <li>Stop the reaction by adding N3 buffer and immediately inverting 4-6 times. Solution should turn clear</li> | ||
+ | <li>Centrifuge at 13000 rpm for 10 minutesv | ||
+ | <li>Decant/pipette supernatant into mini-prep columns. Discard flow-through</li> | ||
+ | <li>Wash with PE buffer (750ul)</li> | ||
+ | <li>Centrifuge at 13000 rpm for 1 minutev | ||
+ | <li>Discard flow-through. Add second wash of PE buffer (500ul)v | ||
+ | <li>Centrifuge at 13000 rpm for 1 minute</li> | ||
+ | <li>Discard flow-through</li> | ||
+ | <li>Centrifuge empty columns at 13000 rpm for 1 minute to eliminate any excess wash buffer</li> | ||
+ | <li>Discard flow-through</li> | ||
+ | <li>Move columns into a labelled eppendorf</li> | ||
+ | <li>Add 30-40ul distilled water and wait for 2-3minutes</li> | ||
+ | <li>Elute DNA by centrifuging at 13000 rpm for 1 minute, do not discard flow-through. Discard column.</li> | ||
+ | <li>Nanodrop</li> | ||
+ | |||
+ | |||
+ | </ol> | ||
+ | |||
+ | </div> | ||
</div> | </div> | ||
- | + | </div> | |
- | <div> | + | |
- | < | + | <h3>Digestion</h3> |
- | <li></li> | + | <div> |
- | + | <div class="pure-g"> | |
- | + | <div class="pure-u-1-2"> | |
- | </ol> | + | <ul> |
+ | <li>Materials | ||
+ | <ul> | ||
+ | <li>2ul Cutsmart buffer (New England Biolabs)</li> | ||
+ | <li>1ul Restriction enzymes</li> | ||
+ | <li>12-16ul DNA to be digested</li> | ||
+ | <li>Distilled water (up to 20ul total volume)</li> | ||
+ | |||
+ | </ul> | ||
+ | </li> | ||
+ | </ul> | ||
+ | </div> | ||
+ | <div class="pure-u-1-2"> | ||
+ | <ol> | ||
+ | <li>Prepare mix | ||
+ | </li> | ||
+ | <li>Incubate for 1-2h at 37 degrees</li> | ||
+ | |||
+ | </ol> | ||
+ | |||
+ | </div> | ||
</div> | </div> | ||
+ | |||
+ | |||
</div> | </div> | ||
+ | <h3>1% Agarose Gel</h3> | ||
+ | <div> | ||
+ | <div class="pure-g"> | ||
+ | <div class="pure-u-1-2"> | ||
+ | <ul> | ||
+ | <li>Materials | ||
+ | <ul> | ||
+ | <li>1g Agarose</li> | ||
+ | <li>100mL 1X TAE buffer</li> | ||
+ | <li>8uL SYBR Safe</li> | ||
- | + | </ul> | |
- | + | </li> | |
- | + | </ul> | |
- | + | </div> | |
- | + | <div class="pure-u-1-2"> | |
- | + | <ol> | |
- | + | <li>Mix Agarose and 1x TAE buffer</li> | |
- | + | <li>Heat up until Agarose is dissolved</li> | |
- | + | <li>Add SYBR Safe</li> | |
- | + | <li>Pour into gel tray and let cool</li> | |
- | + | ||
- | + | </ol> | |
- | + | ||
- | + | </div> | |
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | </ | + | |
</div> | </div> | ||
+ | |||
+ | |||
</div> | </div> | ||
+ | <h3>Agarose Gel Electrophoresis</h3> | ||
+ | <div> | ||
+ | <div class="pure-g"> | ||
+ | <div class="pure-u-1-2"> | ||
+ | <ul> | ||
+ | <li>Materials | ||
+ | <ul> | ||
+ | <li>1% Agarose gel DNA ladder</li> | ||
+ | <li>6x loading dye</li> | ||
+ | <li>Electrophoresis cuvette</li> | ||
+ | |||
+ | </ul> | ||
+ | </li> | ||
+ | </ul> | ||
+ | </div> | ||
+ | <div class="pure-u-1-2"> | ||
+ | <ol> | ||
+ | <li>Set gel tray into cuvette, filled with 1x TAE buffer</li> | ||
+ | <li>Inoculate samples, previously dyed with 6x loading dye. Additionally, provided a DNA ladder for further reference of DNA sizes</li> | ||
+ | <li>Run gel at 110V for 30-40min</li> | ||
+ | |||
+ | |||
+ | </ol> | ||
- | + | </div> | |
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
</div> | </div> | ||
+ | |||
+ | |||
</div> | </div> | ||
+ | <h3>Ovenight Cell Incubation</h3> | ||
+ | <div> | ||
+ | <div class="pure-g"> | ||
+ | <div class="pure-u-1-2"> | ||
+ | <ul> | ||
+ | <li>Materials | ||
+ | <ul> | ||
+ | <li>5mL Luria Broth</li> | ||
+ | <li>5ul specific antibiotic</li> | ||
+ | <li>Loops (for colony picking or glycerol stock scraping)</li> | ||
+ | </ul> | ||
+ | </li> | ||
+ | </ul> | ||
+ | </div> | ||
+ | <div class="pure-u-1-2"> | ||
+ | <ol> | ||
+ | <li>Add Luria Broth into 50mL tube</li> | ||
+ | <li>Inoculate specific antibiotic</li> | ||
+ | <li>Scrape/pick glycerol stock surface/colony and transfer into falcon tube</li> | ||
+ | <li>Incubate at 37°C overnight</li> | ||
- | + | ||
- | + | </ol> | |
- | + | ||
- | + | </div> | |
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
</div> | </div> | ||
+ | |||
+ | |||
</div> | </div> | ||
+ | <h3>1x TAE buffer</h3> | ||
+ | <div> | ||
+ | <ul> | ||
+ | <li>1x solution contas 40nM Tris, 20mM acetic acid, 1mM EDTA</li> | ||
+ | </ul> | ||
+ | </div> | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | </div> | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | </section> | ||
- | |||
- | |||
</div> | </div> | ||
Revision as of 11:51, 30 September 2014
Protocols
Here you can find the protocols we used throughout the summer
General Protocols
LB Preparation
- Add 25g Luria Broth to 1L demineralised water
- Autoclave
LB Agar Preparation
- Add 25g Luria Broth and 15g Agar to 1L demineralised water
- Autoclave
Rubidium Chloride Competent Cells
- Inoculate 1ml of cell culture (grown overnight) into flask containing Psi Broth
- Incubate for 2h at 37°C
- Transfer culture into sterile falcon tube, place in ice for 15min
- Centrifuge at 4000rpm for 5 minutes
- Discard supernatant, then add TfBI buffer and resuspend pellet
- Place in ice for 15 minutes
- Centrifuge at 4000rpm for 5 minutes
- Discard supernatant, then add TfBII buffer and resuspend pellet
- Produce 50ul aliquots
Heat-Shock Transformation
- Add insert DNA to cell aliquot
- Place on ice for 15 minutes
- Heat-shock: place in a 42°C heat-block for 45 seconds
- Place samples back on ice for 2 minutes
- Add LB
- Incubate at 37°C for 30-60 minutes
- Centrifuge at 4000rpm for 5 minutes
- Discard 300uL LB
- Resuspend cells in remaining 200uL LB
- Plate out
- Incubate at 37°C overnight.
80% Glycerol Preparation
- Add 80ml 99.7% glycerol to 20ml demineralized water
- Autoclave
Glycerol Stock Preparation
- Cultures plated on LB Agar + antibiotic and grown at 37°C overnight.
- A 5ml LB culture in LB+antibiotic inoculated from a single, freshly growing colony.
- Cultivate for 16h at 37°C, with constant shaking
- 0.5ml of this culture inoculated into sterile vial
- Add 0.5ml of 80% glycerol
- Vortex
- Spin down
- Freeze them at -80 degrees
QIAprep Spin Miniprep Kit
- Materials per sample
- 250ul P1 buffer (suspension buffer)
- 250ul P2 buffer (Lysis buffer)
- 350ul N3 buffer
- 750ul PE buffer
- 500ul PE buffer
- Columns
- Spin cells down at 4000rpm for 10 minutes
- Discard supernatant (LB)
- Resuspend pellet in P1 buffer
- Transfer to labeled Eppendorf tube
- Add P2 buffer. Solution should turn blue
- Invert tubes 4-6 times, then wait for 2 minutes
- Stop the reaction by adding N3 buffer and immediately inverting 4-6 times. Solution should turn clear
- Centrifuge at 13000 rpm for 10 minutesv
- Decant/pipette supernatant into mini-prep columns. Discard flow-through
- Wash with PE buffer (750ul)
- Centrifuge at 13000 rpm for 1 minutev
- Discard flow-through. Add second wash of PE buffer (500ul)v
- Centrifuge at 13000 rpm for 1 minute
- Discard flow-through
- Centrifuge empty columns at 13000 rpm for 1 minute to eliminate any excess wash buffer
- Discard flow-through
- Move columns into a labelled eppendorf
- Add 30-40ul distilled water and wait for 2-3minutes
- Elute DNA by centrifuging at 13000 rpm for 1 minute, do not discard flow-through. Discard column.
- Nanodrop
Digestion
- Materials
- 2ul Cutsmart buffer (New England Biolabs)
- 1ul Restriction enzymes
- 12-16ul DNA to be digested
- Distilled water (up to 20ul total volume)
- Prepare mix
- Incubate for 1-2h at 37 degrees
1% Agarose Gel
- Materials
- 1g Agarose
- 100mL 1X TAE buffer
- 8uL SYBR Safe
- Mix Agarose and 1x TAE buffer
- Heat up until Agarose is dissolved
- Add SYBR Safe
- Pour into gel tray and let cool
Agarose Gel Electrophoresis
- Materials
- 1% Agarose gel DNA ladder
- 6x loading dye
- Electrophoresis cuvette
- Set gel tray into cuvette, filled with 1x TAE buffer
- Inoculate samples, previously dyed with 6x loading dye. Additionally, provided a DNA ladder for further reference of DNA sizes
- Run gel at 110V for 30-40min
Ovenight Cell Incubation
- Materials
- 5mL Luria Broth
- 5ul specific antibiotic
- Loops (for colony picking or glycerol stock scraping)
- Add Luria Broth into 50mL tube
- Inoculate specific antibiotic
- Scrape/pick glycerol stock surface/colony and transfer into falcon tube
- Incubate at 37°C overnight
1x TAE buffer
- 1x solution contas 40nM Tris, 20mM acetic acid, 1mM EDTA