Difference between revisions of "Part:BBa K314203"

Revision as of 01:10, 21 October 2010 (view source) Hargem (Talk | contribs) ← Older edit		Revision as of 01:13, 21 October 2010 (view source) Hargem (Talk | contribs) (→‎Usage and Biology) Newer edit →
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	This part contains  the [https://parts.igem.org/wiki/index.php?title=Part:BBa_K314200 Tse2/Tsi2 locus] from ''Pseudomonas aeruginosa'' downstream from an HSL inducible promoter( [https://parts.igem.org/wiki/index.php?title=Part:BBa_F2620 F2620])		This part contains  the [https://parts.igem.org/wiki/index.php?title=Part:BBa_K314200 Tse2/Tsi2 locus] from ''Pseudomonas aeruginosa'' downstream from an HSL inducible promoter( [https://parts.igem.org/wiki/index.php?title=Part:BBa_F2620 F2620])
	===Usage and Biology===		===Usage and Biology===
−	[https://parts.igem.org/wiki/index.php?title=Part:BBa_K314200 Tse2] is a toxin that can be exported into  gram (-) bacteria by the Type VI secretion system, killing all gram (-) cells not expressing Tsi2 ( the antitoxin of Tse2). Since Tse2 is being coexpressed with Tsi2, cells transformed with this part will not  die.  Therefore, this part is useful for regulating secretion of Tse2.	+	[https://parts.igem.org/wiki/index.php?title=Part:BBa_K314200 Tse2] is a toxin that can be exported into  gram (-) bacteria by the Type VI secretion system, killing all gram (-) cells not expressing [https://parts.igem.org/wiki/index.php?title=Part:BBa_K314200 Tsi2] ( the antitoxin of Tse2). Since Tse2 is being coexpressed with Tsi2, cells transformed with this part will not  die.  Therefore, this part is useful for regulating secretion of Tse2.
	===Functional Parameters===		===Functional Parameters===

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Revision as of 01:13, 21 October 2010

HSL inducible toxin antitoxin, Tse2 + Tsi2 This part contains the Tse2/Tsi2 locus from Pseudomonas aeruginosa downstream from an HSL inducible promoter( F2620)

Usage and Biology

Tse2 is a toxin that can be exported into gram (-) bacteria by the Type VI secretion system, killing all gram (-) cells not expressing Tsi2 ( the antitoxin of Tse2). Since Tse2 is being coexpressed with Tsi2, cells transformed with this part will not die. Therefore, this part is useful for regulating secretion of Tse2.

Functional Parameters

This part has been tested in pSB3k3. E. coli transformed with this part showed Tse2 production in a broth culture containing HSL at a concentration of 10µM showed Tse2 expression, while no appreciable level of Tse2 was produced in an environment not containing HSL. This was verified by an anti-Tse2 western blot of cellular supernatant of colonies grown up in liquid cultures containing either 10µM HSL or no HSL for a period of approximatively 24 hours.

Sequence and Features

Note: This part does not contain the standard biobricks scar between Lux pR and B0034 and between B0034 and Tse2/Tsi2. Instead of the standard biobrick scar at these position, this part contains the Bglbrick scar GGATCT.