Difference between revisions of "Part:BBa K649402"

Latest revision as of 05:30, 29 October 2011

Ptrc-RBS-rocF-Arg box

This part contains Ptrc & RBS & rocF & Arg box.

Urea concentration detected in bacterial samples on pSB3K3
This work was done by Natsuki Kubo.

Introduction of BBa_K649402 containing arginase coding gene (rocF) and Arg Box (an arg operator capable of binding the arginine repressor) led to production of some urea in strain MG1655 (argR +) and strain JE6852 (argR -). But in both strains, the amount of urea produced was not much different from that when BBa_K649301 containing rocF but not Arg box was introduced. This result shows that rocF is working but Arg box is not working efficiently in this part. The reason why Arg box is not working is probably that low-copy-number plasmid used here is not capable of introducing enough number of Arg boxes to effectively deactivate the arginine repressor.

For more information, see [http://2011.igem.org/Team:Tokyo_Tech/Projects/Urea-cooler/data#2. our work in Tokyo_Tech 2011 wiki.]

Sequence and Features

Assembly Compatibility:

10
COMPATIBLE WITH RFC[10]
12
COMPATIBLE WITH RFC[12]
21
INCOMPATIBLE WITH RFC[21]
Illegal BglII site found at 230
23
COMPATIBLE WITH RFC[23]
25
COMPATIBLE WITH RFC[25]
1000
COMPATIBLE WITH RFC[1000]

@@ Line 4: / Line 4: @@
 This part contains Ptrc & RBS & rocF & Arg box.
-[[Image:BBa K649402 graph(2).png|thumb|center|500px|Urea concentration in growth media 1 hour after IPTG induction.<br />
+[[Image:RocF_and_Arg_box_on_3K3.png|thumb|center|500px|Urea concentration detected in bacterial samples on pSB3K3<br />
-This work is done by Natsuki Kubo.]]
+This work was done by Natsuki Kubo.]]
-Introduction of BBa_K649402 containing arginase coding gene (<span style="font-style:italic;">rocF</span>) and Arg Box (an <span style="font-style:italic;">arg</span> operator capable of binding the arginine repressor) led to production of some urea in strain MG1655 (<span style="font-style:italic;">argR</span> +) and strain JD24293 (<span style="font-style:italic;">argR</span> -). But in both strains, the amount of urea produced was not much different from that when BBa_K649301 containing <span style="font-style:italic;">rocF</span> but not Arg box was introduced. This result shows that <span style="font-style:italic;">rocF</span> is working but Arg box is not working efficiently in this part.  The reason why Arg box is not working is probably that low-copy-number plasmid used here is not capable of introducing enough number of Arg boxes to effectively deactivate the arginine repressor.<br /><br />
+Introduction of [https://parts.igem.org/Part:BBa_K649402 BBa_K649402] containing arginase coding gene (<span style="font-style:italic;">rocF</span>) and Arg Box (an <span style="font-style:italic;">arg</span> operator capable of binding the arginine repressor) led to production of some urea in strain MG1655 (<span style="font-style:italic;">argR</span> +) and strain JE6852 (<span style="font-style:italic;">argR</span> -). But in both strains, the amount of urea produced was not much different from that when [https://parts.igem.org/Part:BBa_K649301 BBa_K649301] containing <span style="font-style:italic;">rocF</span> but not Arg box was introduced. This result shows that <span style="font-style:italic;">rocF</span> is working but Arg box is not working efficiently in this part.  The reason why Arg box is not working is probably that low-copy-number plasmid used here is not capable of introducing enough number of Arg boxes to effectively deactivate the arginine repressor.<br /><br />
-For more information, see [http://2011.igem.org/Team:Tokyo_Tech/Projects/Urea-cooler/method our work in Tokyo_Tech 2011 wiki.]
+For more information, see [http://2011.igem.org/Team:Tokyo_Tech/Projects/Urea-cooler/data#2. our work in Tokyo_Tech 2011 wiki.]