User:JeffreyLau: Difference between revisions

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== 2006/06/15 ==
'''Ligation'''
*Since our e-gel failed, we ligated DNA extract from David and Peng.
*Mixed 6 µL insert (E0241), 2 µL vector (R0010), 2 µL DNA dilution buffer in reaction vial
*Added 10 µL ligation buffer
*Added 1 µL ligase, mixed
*Let incubate 5min at room temperature
'''Transformation'''
*Mixed 20 µL of ligation product with 30 µL competent cells
*Negative control: 2 µL of dH20 with 30 µL competent cells
*Positive control: 5 µL of positive control with 30 µL competent cells
*Incubate on ice for 20min
*Heat shock @42C for 30s
*Rest on ice for 2min
*Incubate overnight @37C
== 2006/06/14 ==
'''Biobrick tutorial'''
''More detailed procedure notes are in lab notebook.''
*Began with 12 samples (3x each of negative control, R0010, E0241, E7104). Fortunately our negative controls showed no growth overnight.
*Made 9 minipreps for the remaining samples. Set aside the E7104 samples (they are a positive control).
*Performed digests on 2x each of R0010 and E0241. We lost one of our E0241 samples by accident, so we threw out an R0010 sample to balance.
*Added Calf Intestinal Phosphatase (CIP) to R0010 samples to prevent self-ligation of the R0010 vector.
*Performed gel electrophoresis on R0010 and E0241 samples.
**Our e-gel was not entirely successful.
[[Image:HH-JL biobrick-tutorial egel.jpg]]
Must be more careful next time.
'''Notes on using the nanodrop'''
*Nanodrop measures concentration of DNA in small samples (1 µL). It is apparently not very accurate.
*Clean nanodrop thoroughly with kimwipes and ethanol, before and after each use
*On desktop, "ND-1000"->"Nucleic Acid"
*Before each set of samples:
**Calibrate nanodrop with drop of distilled water
**Calibrate nanodrop with drop of background (solute), e.g. distilled water or elution buffer
*Add sample to nanodrop, enter name of sample, "Measure"
**Note: mix sample before placing on nanodrop

Revision as of 19:32, 16 June 2006

About

Undergraduate concentrating in Computer Science (class of 2007), member of 2006 Harvard iGem team.

Lab Notebook

<calendar> name=User:JeffreyLau/Notebook date=2006/07/01 view=threemonths format=%name/%year-%month-%day weekstart=8 </calendar>