Haynes Lab:Notebook/Jan/2015/03/20

From OpenWetWare
Jump to: navigation, search
Owwnotebook icon.png Project name Report.pngMain project page
Resultset previous.pngPrevious entry      Next entryResultset next.png

03/20/15

  • Plasmids - minipreps & digests



Plasmids - minipreps & digests

  • ---Karmella 21:17, 26 March 2015 (EDT):
  • Sigma GenElute Miniprep kit.
  • Elute with 75μL elution buffer
  1. MV2 a
  2. MV2 b
  3. BD004 a
  4. BD004 b
  5. BD006 a
  6. BD006 b
  • Digests (Fermentas FD)


Reagent Volume Expected:
1,2. MV2 (E/X) = 4529*
3,4. BD004 (E/S) = 4116, 3200
5,6. BD006 (E/S) = 4182*, 3200
*Bands cut & purified
Hover name
30 μL/lane, 1% agarose; Ladder
DNA (plasmid) 20.0 μL
10x buffer 3.0
enzyme 1 1.0
enzyme 2 1.0
dH2O ---
  30 μL --> 37°C/ ~30 min.


  • Conclusions
    • MV2 is correct
    • BD004 - most likely missing the D11.12 fragment. Sequence results from Meli'sa's past work agrees with the short fragment size on the gel.
    • BD006 is correct
  • Miniprep conc.'s
    • Combined the pairs of preps. Pairs look identical.
Sample OD260 260/280 ng/μL
1. MV2 mp 0.132 1.85 132.262
2. BD004 mp 0.144 1.91 143.967
3. BD006 mp 0.078 1.83 78.413


Assemblies

  1. BD006/MV2: BD006(E/S)/4182 + MV2(E/X)/4529


  • Gel purification: Sigma Gel extraction kit, elute and back-elute with 40 μL elution buffer
    • MV2 (E/X)
    • BD006 (E/S)


  • Measure conc.'s
Sample OD260 260/280 ng/μL
1. MV2-band1 (E/X) 0.033 0.58 32.94
2. MV2-band2 (E/X) -0.01(?) --- ---
3. BD006-band1 (E/S) -0.005(?) --- ---
4. BD006-band2 (E/S) -0.01(?) --- ---
  • Uncertain why BD006-1 yield is so low. Try using this for a ligation anyway.