Week 6

From 2007.igem.org

(Difference between revisions)
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'''[http://partsregistry.org/Part:BBa_J04431 J04431] bacteria from glycerol stock:'''
'''[http://partsregistry.org/Part:BBa_J04431 J04431] bacteria from glycerol stock:'''
-
''-grew of 10 aliquote da 1 ml at 37°C for 1h;''
+
''-growth of 1 ml 10 aliquot at 37°C for 1h;''
''-collection of 5 ml in 2 falcon;''
''-collection of 5 ml in 2 falcon;''
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Perhaps we have problem with the stock, infact we see some fluorescent bacteria  in 10 ul of the stock on the micro slide,  even if we don’t expect this result.
Perhaps we have problem with the stock, infact we see some fluorescent bacteria  in 10 ul of the stock on the micro slide,  even if we don’t expect this result.
-
*We strake on plate from falcon with glucose, we discard the supernatant, we clean in LB for 2 times, we risuspend in 5 ml of LB. we observe the bacteria become fluorescent. When  we add 2 mM of glucose the bacteria don’t become fluorescent.
+
*We strake on plate from falcon with glucose, we discard the supernatant, we clean in LB for 2 times, we risuspend in 5 ml of LB. We observe the bacteria become fluorescent. When  we add 2 mM of glucose the bacteria don’t become fluorescent.
-
At the end of this test we conclude it is possible  to controll the Plac attivation with glucose. As is know in literature endogene LacI is not sufficient to repress it and a little quntity of glucose arises the cinetic rateo of Plac trascription.
+
At the end of this test we conclude it is possible  to control the Plac attivation with glucose. As is know in literature endogenous LacI is not sufficient to repress it and a little quantity of glucose arises the cinetic rateo of Plac trascription.
-
We are going to insert in our costruct esogen LacI to resolve this problem.
+
We are going to insert in our construct esogenous LacI to resolve this problem.
This test enable us to verify GFP emivita which is about 40 minutes as is know in literature.
This test enable us to verify GFP emivita which is about 40 minutes as is know in literature.
*[http://partsregistry.org/Part:BBa_J04431 J04431] digestion with Eco/Xba;
*[http://partsregistry.org/Part:BBa_J04431 J04431] digestion with Eco/Xba;
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*[http://partsregistry.org/Part:BBa_I763012 I763012] digestion with Spe1/Pst1;
*[http://partsregistry.org/Part:BBa_I763012 I763012] digestion with Spe1/Pst1;
*[http://partsregistry.org/Part:BBa_I763012 I763012] control digestion with Xba/Pst1;
*[http://partsregistry.org/Part:BBa_I763012 I763012] control digestion with Xba/Pst1;
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*[http://partsregistry.org/Part:BBa_I763012 I763012] estraction from gel.   
+
*[http://partsregistry.org/Part:BBa_I763012 I763012] extraction from gel.   

Revision as of 12:53, 28 August 2007

08/06/07



08/07/07
  • Miniprep for P0412 and R0010.
  • We inoculate a colony of J04431 in 5 ml to perform the fluorescence test with glucosio (see the following protocol).

J04431 bacteria from glycerol stock:

-growth of 1 ml 10 aliquot at 37°C for 1h;

-collection of 5 ml in 2 falcon;

-fluorescence control (1 green, 1 not);

-add glucose 2 mM in each falcon;

-incubation at 37°C for 1 h;

-in each falcon there aren't fluorescence bacteria;

-idem after 2 hours.

Perhaps we have problem with the stock, infact we see some fluorescent bacteria in 10 ul of the stock on the micro slide, even if we don’t expect this result.

  • We strake on plate from falcon with glucose, we discard the supernatant, we clean in LB for 2 times, we risuspend in 5 ml of LB. We observe the bacteria become fluorescent. When we add 2 mM of glucose the bacteria don’t become fluorescent.

At the end of this test we conclude it is possible to control the Plac attivation with glucose. As is know in literature endogenous LacI is not sufficient to repress it and a little quantity of glucose arises the cinetic rateo of Plac trascription. We are going to insert in our construct esogenous LacI to resolve this problem. This test enable us to verify GFP emivita which is about 40 minutes as is know in literature.



08/08/07
  • Model analysis.


08/09/07



08/10/07




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