Team:UNIPV-Pavia/Notebook/Week5Jul

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December 2008
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March 2009
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April 2009
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May 2009
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June 2009
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July 2009
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August 2009
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September 2009
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October 2009
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November 2009
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Week from July 27th, to August 1st, 2009

Previous Week Next Week

July, 27th

  • Screening for the 11 miniprepped DNA samples for B1: digestion S-P for all.
  • Gel results:
    • Samples 1, 4, 10, 11, 14, 19 and 20 showed an extra band for the non ligated plasmid;
    • Samples 2, 9, 13 and 18 were pure! we decided to keep B1-13 (lane 8) to perform future ligations.


  • NOTE: we had a pure sample for B1 (i.e. B1-13)and three almost-pure sample for B2. Anyway, we decided to perform ligation reactions for these samples and the extra band of B2 will be eliminated during gel cut/purification. WE DECIDED TO KEEP B2-5. Next weeks we will think about purifying B2-5 itself.


  • We transformed 20 pg of B1-13 purified DNA (stored at -20°C) in TOP10 in order to prepare a glycerol stock for this construct. We incubated the plate at 37°C overnight.


Preparation of experiment with Tecan F200

  • We infected 5 ml of LB + Amp with 10 ul of A14pg, A8pg and A9pg glycerol stocks.
  • We also infected 5 ml of LB + Amp with a single colony taken from B0030 native plate (stored at +4°C).
  • We incubated the inocula at 37°C, 220 rpm overnight.


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July, 28th

  • We streaked LB agar plates + suitable antibiotic with iGEM stabs:
K116001 K116002 K112405
P0412 I746902 I746903
K101017 F2620MIT1 F2620MIT2
  • We incubated these "single colonies" plates at 37°C overnight.


  • We picked a single colony from B1-13 plate to infect 1 ml of LB + Amp and incubated this inoculum for 5 hours and 1/2.
  • We prepared a glycerol stock for B1-13.
  • We aliquoted the remaining 250 ul of B1-13 bacterial culture in two different falcon tubes and re-filled them with 5 ml of LB + Amp.
  • We also infected 5 ml of LB + Amp with 10 ul of B0015(X2) and B2-5(X2) glycerol stocks.
  • We incubated these six cultures at 37°C, 220 rpm overnight.



Preparation of experiment with Tecan F200

  • We diluted 1:1000 the overnight cultures of A14pg, A8pg, A9pg and B0030.
  • We incubated the diluted cultures for 5 hours (37°C, 220 rpm).
  • After 5 hours, we adjusted the OD600 at 0.025.


Experiment with Tecan F200

  • Description
  • Purpose:
  • Materials & Methods
  • Protocol
  • Results


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July, 29th

  • Miniprep for:
    • B1-13
    • B1-13bis
    • B2-5
    • B2-5bis
    • B0015
    • B0015bis
  • Digestion:
    • B1-13(E-S)
    • B1-13bis(E-S)
    • B2-5(E-S)
    • B2-5bis(E-S)
    • B0015(E-X)
    • B0015bis(E-X) - 500ng
  • Gel run/cul/purification for:
    • B2-5(E-S)
    • B2-5bis(E-S)
    • B0015(E-X)
    • B0015bis(E-X)
  • Precipitation with sodium acetate for:
    • B1-13(E-S)
    • B1-13bis(E-S)
  • We had good yields for all, except from B0015bis(E-X). We will use the other vector (i.e. B0015(E-X)) for ligation.
  • Ligation:
    • B3 = B1(E-S) + B0015(E-X) in pSB1AK3 (50 ng of vector)
    • B4 = B2(E-S) + B0015(E-X) in pSB1AK3 (26 ng of vector)
  • keeping the sample that gave the higher yield.
  • We incubated the ligations at 16°C overnight.



  • All the streaked plates showed single colonies! we prepared an inoculum for all of them picking a single colony and infecting 1 ml of LB + suitable antibiotic. We incubated these inocula for 5 hours and 1/2.
  • Then, we prepared a glycerol stock for each of them and re-filled the remaining 250 ul of bacterial culture with 3 ml of LB + suitable antibiotic.
  • We incubated the cultures at 37°C, 220 rpm overnight.

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July, 30th

  • We transformed B3 (50 pg) and B4 (20 pg) ligations. We incubated the plates at 37°C overnight.


  • Miniprep for the overnight cultures of:
K116001 K116002 K112405
P0412 I746902 I746903
K101017 F2620MIT1 F2620MIT2
  • We sent purified DNA to BMR Genomics for sequencing (VF2 and VR for all of them, except from K112405, whose plasmid does not have VF2).
  • We also sent purified DNA of B1-13 and B2-5 (stored at -20°C) to BMR Genomics for sequencing.



Experiment with Tecan F200

  • Description
  • Purpose:
  • Materials & Methods
  • Protocol
  • Results



Preparation of experiment with Tecan F200 (for the following day!)

  • We inoculated 10 ul of J23100 and J23100-E0240 parts form UNIPV iGEM 2008 stocks.
  • We incubated these two inocula at 37°C, 220 rpm overnight.

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July, 31st

  • B3 and B4 plates showed colonies! We picked 7 colonies for each plate and infected 1 ml of LB + Kan. We incubated these 14 inocula for 5 hours and 1/2. Then we prepared glycerol stocks and re-filled the remaining 250 ul of bacterial culture with 5 ml of LB + Kan.
  • We incubated these cultures at 37°C, 220 rpm overnight.



Preparation of experiment with Tecan F200

  • We diluted 1:100 J23100 and J23100-E0240 parts form UNIPV iGEM 2008 stocks overnight cultures.
  • We incubated these two cultures at 37°C, 220 rpm for about 3 hours.



Experiment with Tecan F200

  • Description
  • Purpose:
  • Materials & Methods
  • Protocol
  • Results


Top


August, 1st

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