Difference between revisions of "Part:BBa K2992002"

Latest revision as of 00:36, 22 October 2019

botR gene from C. botulinum

botR encodes an alternative sigma factor associated with the expression of C. botulinum neurotoxin production genes.

Usage and Biology

BotR regulates the the expression of boutlinum neruotoxin and non-toxic associated proteins during the late exponential and early stationary growth phases. We have integrated botR into the genome of C. sporogenes to generate a reporter strain to validate the concept of using suitable reporters to predict the production of botulinum neurotoxin following food manufacturing processes.

Characterisation

This basic part was used in many experiments to produce the sigma factor, responsible for the the expression of acetone, GusA or FAST when placed downstream of a BoTR-activated promoter. We made three BotR-expression modules comprising of the botR sigma factor gene under the control of the native botR promoter, an inducible system and one with no promoter. See our results page for more information.

Sequence and Features

Assembly Compatibility:

10
COMPATIBLE WITH RFC[10]
12
COMPATIBLE WITH RFC[12]
21
COMPATIBLE WITH RFC[21]
23
COMPATIBLE WITH RFC[23]
25
COMPATIBLE WITH RFC[25]
1000
COMPATIBLE WITH RFC[1000]

References

Raffestin, S., Dupuy, B., Marvaud, J. and Popoff, M. (2004). BotR/A and TetR are alternative RNA polymerase sigma factors controlling the expression of the neurotoxin and associated protein genes in Clostridium botulinum type A and Clostridium tetani. Molecular Microbiology, 55(1), pp.235-249.

Zhang, Z., Korkeala, H., Dahlsten, E., Sahala, E., Heap, J., Minton, N. and Lindström, M. (2013). Two-Component Signal Transduction System CBO0787/CBO0786 Represses Transcription from Botulinum Neurotoxin Promoters in Clostridium botulinum ATCC 3502. PLoS Pathogens, 9(3), p.e1003252.

@@ Line 3: / Line 3: @@
 <partinfo>BBa_K2992002 short</partinfo>
-<i>botR</i> encodes a positive transcriptional regulator of <i>C. botulinum</i> neurotoxin production which functions as an alternative sigma factor.
+<i>botR</i> encodes an alternative sigma factor associated with the expression of <i>C. botulinum</i> neurotoxin production genes.
 ===Usage and Biology===
-BotR regulates the the expression of boutlinum neruotoxin and non-toxic associated proteins during the late exponential and early stationary growth phases. We have integrated <i>botR</i> into the genome of <i>C. sporogenes</i> to generate a reporter strain to validate the concept of using volatile reporters to predict the production of botulinum neurotoxin following food manufacturing processes. <br><br>
+BotR regulates the the expression of boutlinum neruotoxin and non-toxic associated proteins during the late exponential and early stationary growth phases. We have integrated <i>botR</i> into the genome of <i>C. sporogenes</i> to generate a reporter strain to validate the concept of using suitable reporters to predict the production of botulinum neurotoxin following food manufacturing processes. <br><br>
 ===Characterisation===
-We made three <i>BotR</i>-expression modules comprising of the <i>BotR</i> sigma factor gene under the control of the native <i>BotR</i> promotor,an inducible system and one with no promotor. See the[https://2019.igem.org/Team:Nottingham/Results results page] for more information  <br><br><br>
+This basic part was used in many experiments to produce the sigma factor, responsible for the the expression of acetone, GusA or FAST when placed downstream of a BoTR-activated promoter.
+We made three <i>BotR</i>-expression modules comprising of the <i>botR</i> sigma factor gene under the control of the native <i>botR</i> promoter, an inducible system and one with no promoter. See our [https://2019.igem.org/Team:Nottingham/Results results page] for more information.