Difference between revisions of "Part:BBa K1632000"

Revision as of 17:31, 18 September 2015

fim switch[deault ON](Tokyo_Tech/J23119)

Fig. 1. fim switch(Tokyo_Tech/J23119) design (Up:[ON] state Down:[OFF] state)

The fim switch is the promoter containing repeated DNA sequence which is inverted by the Fim recombinase. Therefore, we can control the expression of the gene downstream of the fim switch by adding the Fim recombinase.
We designed this fim switch which has a J23119 promoter. Also between the promoter and the inverting site, there are two restriction enzyme sites in each front (SalIand BamHI) and back (BglII and MluI)(Fig. 1. fim switch (Tokyo_Tech/J23119) design). So the promoter can easily be interchanged. Except for insertion of restriction enzyme sites, basically, the design of fim switch(Tokyo_Tech) is similar with fim switch(wild-type). From our results of our assay, the inversion of fim switch (Tokyo_Tech/J23119) by FimB/FimE was not confirmed correctly. The FimB protein inverts fim switch from [ON] state to [OFF] state and from [OFF] state to [ON] state correctly. However the FimE protein didn’t inverts fim switch predominantly from [ON] state to [OFF] state. In the assay, the FimE(wild-type) protein inverts fim switch from [ON] state to [OFF] state and from [OFF] state to [ON] state. In other words, the FimE protein works as the FimB protein. Sequence and Features

Assembly Compatibility:

10
COMPATIBLE WITH RFC[10]
12
INCOMPATIBLE WITH RFC[12]
Illegal NheI site found at 345
Illegal NheI site found at 368
21
INCOMPATIBLE WITH RFC[21]
Illegal BglII site found at 374
Illegal BamHI site found at 333
23
COMPATIBLE WITH RFC[23]
25
COMPATIBLE WITH RFC[25]
1000
COMPATIBLE WITH RFC[1000]

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 __NOTOC__
 <partinfo>BBa_K1632000 short</partinfo>
+[[Image:Tokyo Tech fim switch Tokyo Tech design.png|thumb|center|400px|Fig. 1.  ''fim'' switch(Tokyo_Tech/J23119) design (Up:[ON] state  Down:[OFF] state)]]<br>
 <span style="margin-left: 10px;">The <i>fim</i> switch is the promoter containing repeated DNA sequence which is inverted by the Fim recombinase. Therefore, we can control the expression of the gene downstream of the <i>fim</i> switch by adding the Fim recombinase.<br>
 <span style="margin-left: 10px;">We designed this ''fim'' switch which has a J23119 promoter. Also between the promoter and the inverting site, there are two restriction enzyme sites in each front (SalIand BamHI) and back (BglII and MluI)(Fig. 1. ''fim'' switch (Tokyo_Tech/J23119) design). So the promoter can easily be interchanged. Except for insertion of restriction enzyme sites, basically, the design of <i>fim</i> switch(Tokyo_Tech) is similar with <i>fim</i> switch(wild-type).
-[[Image:Tokyo Tech fim switch Tokyo Tech design.png|thumb|center|400px|Fig. 1.  ''fim'' switch(Tokyo_Tech/J23119) design (Up:[ON] state  Down:[OFF] state)]]<br>
 <span style="margin-left: 10px;">From our results of our assay, the inversion of ''fim'' switch (Tokyo_Tech/J23119) by FimB/FimE was not confirmed correctly. The FimB protein inverts ''fim'' switch from  [ON] state to [OFF] state and from [OFF] state to [ON] state correctly. However the FimE protein didn’t inverts ''fim'' switch predominantly from [ON] state to [OFF] state. In the assay, the FimE(wild-type) protein inverts ''fim'' switch from [ON] state to [OFF] state and from [OFF] state to [ON] state. In other words, the FimE protein works as the FimB protein.
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