Team:Paris Liliane Bettencourt/Notebook/2011/09/08/

From 2011.igem.org

Team IGEM Paris 2011

Contents

Cyrille

Digestion and gel

S24 is prepared to be cloned with

  • RFP - TT
  • T7 amber - TT
  • ComS
  • KinA-TT

3*4 500ng of S24 was digested and runned on the gel The insert was digested several time.

Then the gel was runned and the bands cutted.

S24 digested - S24a 1,2,3,4 - S24 b 1, 2,3, b - S24c 1,2,3,4
S24 bands cutted
RFP Ter 1,2,3 - T7 amber ter 1,2,3 - KinA-ter 1,2,3
RFP ter cutted
T7 ter cutted
KinA ter cutted

Then I proceed to a gel extraction of the bands.

PCR colony of TetO/TetR

New attempt of PCR colony to find one good clone. Runned on a gel

PCR colony 2,4,5,6,7,8,9,10

Miniprep of YFP-TetR BB

Miniprep of the 3 last clones of YFP-TetR BB (that were not sequenced or red)


Hovannes-Baptiste

Preparation of slides

Dilution of overnight cultures : PY79 (gfp-), PY79 (gfp+), 3610 (noted 3610 gfp-) and 3610 with GPF (noted 3610 gfp+) .

We tested quicly PY79+S12 and saw that once again there was no fluorescence. We will have to see if our -80°C glycerol for this strain is still ok. However 3610 strains arevery quick and exhibited a strong fluorescence. We will continue to test them a lot during the following days.

We waited to an OD of 0.4 (600 nm).

Two well slides :

  • 1-control (PY79 only) 2-Mix (PY79 and 3610 gfp+)
  • 1-control (3610 gfp-) 2-Mix (3610 gfp- and 3610 gfp+)


Observation

-37°C Microscopy-

We observed the plate with TRANS and YFP-filter settings on the old Zeiss microscope. The 3610 gfp+ strain proved to exhibit a strong fluorescence in both cases. We had two experiments of approximately 3 hours which gave the same results. The images were better than what we used to do, but the cells were not concentrated enough (verry fare from what we saw in the Ben-Yahuda article). We did not see any evidence of nanotubes probably because of this. We will try to concentrate the cells more this week-end.

3610 gfp-/3610 gfp+ : 37°C
3610 gfp- and 3610 gfp+ strains at 37°C t=0min (trans image)
3610 gfp- and 3610 gfp+ strains at 37°C t=0min (gfp image)
3610 gfp- and 3610 gfp+ strains at 37°C t=120min (trans image)
3610 gfp- and 3610 gfp+ strains at 37°C t=120min (gfp image)
PY79 (gfp-)/3610 gfp+ : 37°C
PY79 and 3610 gfp+ strains at 37°C t=0min (trans image)
PY79 and 3610 gfp+ strains at 37°C t=0min (gfp image)
PY79 and 3610 gfp+ strains at 37°C t=120min (trans image)
PY79 and 3610 gfp+ strains at 37°C t=120min (gfp image)



We followed the plate a few hours nonetheless but no result was visible (the florescent cell divided only 2 times).


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