Glasgow/Wetlab/Week10
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Week 10
Monday 3rd September 2007
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Christine's plates from 31/08/07 all grew except for 1B. Overnights were set up from 7 colonies on each of the plates on Sunday, labelled 1A1→1H7, 49 in total as there were none from plate 1B. Christine, Maia and Maija miniprpped them and digested them as follows:
This table is incorrect, see 04/09/07.PCR tube Colony DNA is taken from Insert Enzyme Expected sizes Result 1A D (*a→d*) EcoRI 3455bp, 18bp, 3654bp Negative 1B D (*a→d*) PstI 274bp, 6553bp Negative 1C S (*d→g*) EcoRI 7046bp, 18bp, 284bp Negative 1D S (*d→g*) PstI 1155bp, 2511bp, 3682bp Negative 1E S (*d→g*) PstI 1962bp, 1704bp, 3682bp Negative 1F Q (*d→g*) EcoRI 7046bp, 18bp, 284bp Negative 1G Q (*d→g*) PstI 1155bp, 2511bp, 3682bp Negative 1H Q (*d→g*) PstI 1962bp, 1704bp, 3682bp Negative Tuesday 4nd September 2007
- Christine realised that the site directed mutagenesis she had attempted on Thursday 30/08/07 was wrong. S and Q were meant to be tested for (*a→d*), and D was meant to be tested for (*d→g*) but S and Q were tested for (*d→g*), and D was tested for (*a→d*). This means the digests from 03/09/07 were also incorrect. However, all is not lost because the sequencing results for S and D came back today and they show that both S and D contain (*d→g*). This means that, theoretically, digests of mutations 1C, 1D and 1E from 03/09/07 should be positive, but this is not the case.
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Before the sequencing results for S and D arrived, Christine set up site directed mutagenesis to correct that which she did 30/08/07.
PCR tube Colony DNA is taken from Insert Primers used 1A D (*e→g*) EcoRI *E for + EcoRI *E rev 1B D (*e→g*) PstI *E for + PstI *E rev 1C D (*e→g*) PstI *F for + PstI *F rev 1D S (*a→d*) EcoRI *B for + EcoRI *B rev 1E S (*a→d*) PstI *C for + PstI *C rev 1F Q (*a→d*) EcoRI *B for + EcoRI *B rev 1G Q (*a→d*) PstI *C for + PstI *C rev Wednesday 5rd September 2007
Thursday 6th September 2007
Friday 7th September 2007
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