User:DrJones1935/10 August 2012

From 2012.igem.org

Contents

I. Digest pBAV1K-T5-gfp Plasmid and Cassette with XbaI and PstI

  • Mix (plasmid):
  • 37.5 uL water
  • 5 uL pBAV1K-T5-gfp DNA (~1 ug at 200 ng/uL)
  • 0.5 uL 100x BSA
  • 5 uL 10 NEB Buffer 3
  • 1 uL XbaI
  • 1 uL PstI
  • Mix (cassette):
  • 10.32 uL water
  • 32.18 uL cassette DNA (~1 ug at 31.075 ng/uL)
  • 0.5 uL 100x BSA
  • 5 uL 10 NEB Buffer 3
  • 1 uL XbaI
  • 1 uL PstI
  • Incubate tubes in 37 oC water bath for 4 hours

II. QIAquick PCR Purification Protocol

  • Add 5 volumes Buffer PB to 1 volume of reaction, mix
Reaction Volume PB
plasmid - 50 uL 250 uL
cassette - 50 uL 250 uL
  • Note: The solutions were all yellow, OK to proceed
  • Apply samples to QIAquick columns, centrifuge for 1 minute at 13000 rpm, discard flow-through
  • Add 750 uL of Buffer PE to the QIAquick column, centrifuge for 1 min and discard flow through
  • Centrifuge again for 1 minute
  • Transfer the column to clean microcentrifuge tube
  • Elute cassette DNA by adding 30 uL of Buffer EB to the center of the column and let stand for 4 minutes
  • Elute plasmid DNA by adding 30 uL of water to the center of the column and let stand for 4 minutes
  • Centrifuge for 1 minute, store cassette DNA at 4 oC

III. Digest Restriction-digested Plasmid with CIP

  • Mix:
  • 28 uL of plasmid DNA (assume ~1 ug)
  • 16 uL water
  • 5 uL 10X NEB Buffer 3
  • 1 uL diluted CIP
  • 1 uL of CIP stock into 10 uL of water
  • Incubate in 37 oC water bath for 1 hour

IV. QIAquick PCR Purification Protocol

  • Add 5 volumes Buffer PB to 1 volume of reaction, mix
Reaction Volume PB
plasmid - 50 uL 250 uL
  • Note: The solutions were all yellow, OK to proceed
  • Apply sample to QIAquick column, centrifuge for 1 minute at 13000 rpm, discard flow-through
  • Add 750 uL of Buffer PE to the QIAquick column, centrifuge for 1 min and discard flow through
  • Centrifuge again for 1 minute
  • Transfer the column to clean microcentrifuge tube
  • Elute olasmid DNA by adding 30 uL of Buffer EB to the center of the column and let stand for 4 minutes
  • Centrifuge for 1 minute, store plasmid DNA at 4 oC

V. Measure the Concentration of Extracted DNA

  • Bring samples and Buffer EB bottle upstairs to Take3 plate reader
  • Add 2 uL of each sample according to the following chart:
Blank (EB) Blank
Blank Blank
plasmid cassette
  • Use the program to blank the machine and measure sample concentrations
RESULTS

Concentration:

Sample Concentration (ng/uL) Approx. volume (uL)
plasmid 19.714 ~28
cassette 15.692 ~28