Difference between revisions of "Part:BBa K2145000:Experience"

 
 
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[[File:Splates95102.png]]<br>
  
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Qualitatively, we noticed that none of the colonies containing this plasmid showed BOTH visible RFP and visible GFP -- each colony was either red, green, or neither, but never red and green (see GG95 above). Fluorescence was observed even without the addition of inducers (IPTG and ATc), even though the reporters should be under IPTG and ATc control. We attribute this to insufficient repression by LacI and TetR.
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This experience page is provided so that any user may enter their experience using this part.<BR>Please enter
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how you used this part and how it worked out.
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[[File:Alverno_ca_a95.png]]
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[[File:Alverno_ca_r_95.png]]
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[[File:Alverno_ca_g_95.png]]
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Shown above are OD600 measurements, RFP fluorescence, and GFP fluorescence, respectively, for three clones containing this part in liquid culture. Again, we emphasize that only RFP OR GFP are expressed, but never both. We believe this may be due to supercoiling -- when one gene expresses, it creates supercoils that shut down the other gene.
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Sequencing on this plasmid was low-quality and inconclusive.
  
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===Applications of BBa_K2145000===
 
  
 
===User Reviews===
 
===User Reviews===

Latest revision as of 00:31, 31 October 2016

Splates95102.png

Qualitatively, we noticed that none of the colonies containing this plasmid showed BOTH visible RFP and visible GFP -- each colony was either red, green, or neither, but never red and green (see GG95 above). Fluorescence was observed even without the addition of inducers (IPTG and ATc), even though the reporters should be under IPTG and ATc control. We attribute this to insufficient repression by LacI and TetR.

Alverno ca a95.png Alverno ca r 95.png Alverno ca g 95.png

Shown above are OD600 measurements, RFP fluorescence, and GFP fluorescence, respectively, for three clones containing this part in liquid culture. Again, we emphasize that only RFP OR GFP are expressed, but never both. We believe this may be due to supercoiling -- when one gene expresses, it creates supercoils that shut down the other gene.

Sequencing on this plasmid was low-quality and inconclusive.


User Reviews

UNIQ7fe3575f268442f2-partinfo-00000000-QINU UNIQ7fe3575f268442f2-partinfo-00000001-QINU