Reporter: Week 6 June 20-25

From 2011.igem.org

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==Monday==
==Monday==
===Mutagenesis of XylE, Take 5 Day 5===
===Mutagenesis of XylE, Take 5 Day 5===
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No growth was seen in any of the three overnight cultures. The most probable reason for the lack of growth in the cultures is the entire colony was used for colony PCR on 6/17, leaving no cells to grow in culture. In order to grow more cells in culture, the three PCR reactions were transformed into competent Escherichia coli cells and plated on chloramphenicol resistant plates.
+
     No growth was seen in any of the three overnight cultures. The most probable reason for the lack of growth in the cultures is the entire colony was used for colony PCR on 6/17, leaving no cells to grow in culture. In order to grow more cells in culture, the three PCR reactions were transformed into competent Escherichia coli cells and plated on chloramphenicol resistant plates.
===Insert Small Linker into Imp Linker + K3 Vector, Take 2 Day 1===
===Insert Small Linker into Imp Linker + K3 Vector, Take 2 Day 1===
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     No colonies grew from the 6/17 assembly of tev protease and the K3 vector, so the assembly was performed again. The purified tev protease PCR product from 6/4 and the K3 miniprep from 6/13 were digested with XbaI and PstI in buffer 3. The digests were ligated together, and the ligation was transformed into Escherichia coli cells and plated on kanamycin resistant plates.
     No colonies grew from the 6/17 assembly of tev protease and the K3 vector, so the assembly was performed again. The purified tev protease PCR product from 6/4 and the K3 miniprep from 6/13 were digested with XbaI and PstI in buffer 3. The digests were ligated together, and the ligation was transformed into Escherichia coli cells and plated on kanamycin resistant plates.
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==Tuesday==
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===Mutagenesis of XylE, Take 5 Day 6===
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     All three plates contained ten total colonies:
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{|border="1"
 +
!PCR Reaction
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!Number of<br />Colonies
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!Colonies Used
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|-align="center"
 +
|1
 +
|8
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|A, B, C
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|-align="center"
 +
|2
 +
|0
 +
|N/A
 +
|-align="center"
 +
|3
 +
|2
 +
|A, B
 +
|}
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===6/20 Assembly Validation===
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The tev protease + K3 colonies all still contained RFP, which means that the assembly did not work. The small linker + K3 and 10 AA + K3 plates both grew colonies, although not many.
 +
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Two colonies from both the small linker + K3 and the 10 AA + K3 plates were amplified through colony PCR. The PCR products were tested through agarose gel elctrophoresis in order to determine their size in base pairs. The gel showed that the two linkers contained the correct number of base pairs, so these constructs should be sent to sequencing.
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Revision as of 17:41, 26 June 2011

Contents

Monday

Mutagenesis of XylE, Take 5 Day 5

     No growth was seen in any of the three overnight cultures. The most probable reason for the lack of growth in the cultures is the entire colony was used for colony PCR on 6/17, leaving no cells to grow in culture. In order to grow more cells in culture, the three PCR reactions were transformed into competent Escherichia coli cells and plated on chloramphenicol resistant plates.

Insert Small Linker into Imp Linker + K3 Vector, Take 2 Day 1

     The small linker and the Imp Linker + K3 construct were digested with XbaI and AgeI in buffer 4. The digests were ligated together, and the ligation was transformed into Escherichia coli cells and plated onto kanamycin resistant plates.

Insert 10 AA Linker into Imp Linker + K3 Vector, Take 3 Day 1

     The 10 AA linker and the Imp Linker + K3 construct were digested with XbaI and AgeI in buffer 4. The digests were ligated together, and the ligation was transformed into Escherichia coli cells and plated onto kanamycin resistant plates.

Insert tev Protease into K3 Vector, Take 4 Day 1

     No colonies grew from the 6/17 assembly of tev protease and the K3 vector, so the assembly was performed again. The purified tev protease PCR product from 6/4 and the K3 miniprep from 6/13 were digested with XbaI and PstI in buffer 3. The digests were ligated together, and the ligation was transformed into Escherichia coli cells and plated on kanamycin resistant plates.

Tuesday

Mutagenesis of XylE, Take 5 Day 6

     All three plates contained ten total colonies:

PCR Reaction Number of
Colonies
Colonies Used
1 8 A, B, C
2 0 N/A
3 2 A, B

6/20 Assembly Validation

     The tev protease + K3 colonies all still contained RFP, which means that the assembly did not work. The small linker + K3 and 10 AA + K3 plates both grew colonies, although not many.

     Two colonies from both the small linker + K3 and the 10 AA + K3 plates were amplified through colony PCR. The PCR products were tested through agarose gel elctrophoresis in order to determine their size in base pairs. The gel showed that the two linkers contained the correct number of base pairs, so these constructs should be sent to sequencing.

Back to Notebook