Team:Evry/Protocols/02
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- | < | + | <!--<a href='https://2013.igem.org/Team:Evry/Protocoles/02' title='Vers la page française'> <img src='https://static.igem.org/mediawiki/2013/b/b9/Francais.jpg'/></a>--> |
- | <p>For 100 µL of chemical competent cells, add 1 µL of plasmidic DNA. | + | <h1> Transformation </h1> |
+ | |||
+ | |||
+ | <h2> Goal </h2> | ||
+ | <p>In this step, <h1>à modif</h1>the heat shock (between -80°C up to 42°C) induces chimiocompetent bacteria to be in state of competence. DNA from the environment (in this case: plasmid) can then integrate the cell.</p> | ||
+ | |||
+ | <h2> Preparation </h2> | ||
+ | <h3>Chimiocompetent cells</h3> | ||
+ | <p>For 100 µL of chemical competent cells, add 1 µL of plasmidic DNA. If the ligation protocol is a | ||
+ | <a href="https://2013.igem.org/Team:Evry/Protocols/05" target='_blank'>Golden Gate</a> , add 5 µL instead.<br/> | ||
Let 30 minutes on ice.<br/> | Let 30 minutes on ice.<br/> | ||
Let the cells at 42°C for exactly 50 seconds.<br/> | Let the cells at 42°C for exactly 50 seconds.<br/> | ||
Let 5 minutes on ice.<br/> | Let 5 minutes on ice.<br/> | ||
Resuspend the cells with 1 mL of LB spread on a petri dish then let it at 37°C.<br/> | Resuspend the cells with 1 mL of LB spread on a petri dish then let it at 37°C.<br/> | ||
- | <br/></p> | + | </p> |
+ | <h3>Electrocompetent cells</h3> | ||
+ | <h2> Controles</h2> | ||
+ | <p>To check if the transformation have work, make a positive and a negative controle.<br/> | ||
+ | <li>Positive controle: Use plasmid pSB1A3<br/> | ||
+ | If the transformation have worked, colonies must have a red phenotype.<br/><br/> | ||
+ | <li>Negative controle: Ø <br/> | ||
+ | Without plasmid with antibiotic resistance, no colonies must grow. </p> | ||
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+ | {{:Team:Evry/foot}} |
Latest revision as of 09:56, 2 September 2013
Transformation
Goal
In this step,
à modif
the heat shock (between -80°C up to 42°C) induces chimiocompetent bacteria to be in state of competence. DNA from the environment (in this case: plasmid) can then integrate the cell.Preparation
Chimiocompetent cells
For 100 µL of chemical competent cells, add 1 µL of plasmidic DNA. If the ligation protocol is a
Golden Gate , add 5 µL instead.
Let 30 minutes on ice.
Let the cells at 42°C for exactly 50 seconds.
Let 5 minutes on ice.
Resuspend the cells with 1 mL of LB spread on a petri dish then let it at 37°C.
Electrocompetent cells
Controles
To check if the transformation have work, make a positive and a negative controle.
If the transformation have worked, colonies must have a red phenotype.
Without plasmid with antibiotic resistance, no colonies must grow.