Purdue/11 July 2008

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===Glycerol Stocks!===
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*Today making glycerol stocks of SOS (J22106) and LacZ (I732017) parts from stabs sent by iGEM
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*We only have 100% glycerol (sterile), so we're just going to follow the same iGEM protocol but with 100% glycerol
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*Dr. Clase also suggested a somewhat different protocol for making stocks, so we're going to do both side-by-side and see which is better
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*Following iGEM protocol:
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**Make o/n culture in antibiotic (amp) LB broth --did this yesterday
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**Combine 1mL of overnight w/ 150 uL of sterile 100% glycerol solution in screw-top cryotube (make sure tube is labeled with part #, plasmid, and antibiotic resistance)
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**Vortex briefly
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**Incubate at room temp. for 1/2 hour and put in -80C freezer
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*Following Dr. Clase's protocol:
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*Mix 750uL 100% glycerol and 250uL stock colony in cryotube
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*Vortex
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*Put directly in -80C freezer
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In other news, the bead plating did not help the other Lac transformations to work, although the pUC19 still grew quite well.
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'''Edited by Janie Stine'''

Latest revision as of 17:31, 11 July 2008

Click Here to return to the notebook.

Glycerol Stocks!

  • Today making glycerol stocks of SOS (J22106) and LacZ (I732017) parts from stabs sent by iGEM
  • We only have 100% glycerol (sterile), so we're just going to follow the same iGEM protocol but with 100% glycerol
  • Dr. Clase also suggested a somewhat different protocol for making stocks, so we're going to do both side-by-side and see which is better
  • Following iGEM protocol:
    • Make o/n culture in antibiotic (amp) LB broth --did this yesterday
    • Combine 1mL of overnight w/ 150 uL of sterile 100% glycerol solution in screw-top cryotube (make sure tube is labeled with part #, plasmid, and antibiotic resistance)
    • Vortex briefly
    • Incubate at room temp. for 1/2 hour and put in -80C freezer
  • Following Dr. Clase's protocol:
  • Mix 750uL 100% glycerol and 250uL stock colony in cryotube
  • Vortex
  • Put directly in -80C freezer


In other news, the bead plating did not help the other Lac transformations to work, although the pUC19 still grew quite well.


Edited by Janie Stine