Difference between revisions of "Template:Team:Groningen/CONTENT/LOGBOOK/Competent e coli 2"

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|description=<html>Competent E. coli cells were made.  
 
|description=<html>Competent E. coli cells were made.  
 
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|conclusion=<html>No red colonies were visible, so the transformation failed.
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|conclusion=<html>No red colonies were visible, so the transformation failed and no competent E. coli cells were made.
 
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Revision as of 10:09, 7 August 2015

Competent E. coli 2
Competent E. coli cells were made.
To make competent E. coli cells.
No red colonies were visible, so the transformation failed and no competent E. coli cells were made.

<a class="postscriptum protocol" href="https://2015.igem.org/Team:Groningen/Protocols_and_Protocols/No_protocol">Finibus sapien, nec cursus...</a>

00:00, 06 July 2015 - 00:00, 06 July 2015
A colony was picked from a plate (± 14 days old, stored in fridge) and grown overnight in liquid media (5 mL LB in 50 mL tube) in shaker incubator at 37 °C, 200 rpm
Harm Ruesink
00:00, 07 July 2015 - 00:00, 07 July 2015
Transferred overnight culture in fresh LB (pre-warmed). 250 µL culture in 25 mL LB (1/100 dilution) and grown in shaker incubator at 37 °C, 200 rpm for 2 hours.

Used culture for making competent cells (protocol Clement).

Tested competence of competent E. coli with Transformation efficiency kit (BBa_J04450, 50 pg/µL). Protocol: Heat Shock transformation (protocolbook).

1 µL of 50 pg/µL BBa_J04450

Plate on LB agar + CM:

100% (100 µL)
Grown overnight in incubator at 37 °C.
Harm Ruesink
00:00, 08 July 2015 - 00:00, 08 July 2015
Checked transformation:

Transformation failed. White smear on 100% plate. Maybe the CM did not work properly.

Tested competent cells again with Transformation efficiency kit (BBa_J04450, 50 pg/µL). Protocol: Heat Shock transformation (protocolbook).
1 µL of 50 pg/µL BBa_J04450

Plated on LB agar + CM:

10% (10 µL)
90% (90 µL)

Grown overnight in incubator at 37 °C.

Harm Ruesink
00:00, 09 July 2015 - 00:00, 09 July 2015
Checked transformation: No colonies on 10% plate. A white smear on 90% plate. No red colonies, so transformation failed.
Harm Ruesink