Team:NTU-Taida/PEPDEX

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{{:Team:NTU-Taida/Templates/BSHero|Title=Stability and Safety|Content=<p>Every GM system that will function outside lab will face two major problems:system stability and safety! Without selective pressure ,we have to deal with plasmid instability ; to make our coli colonized bowel we have to use recA+ strains which may cause plasmid multimer. Our GM coli will also contact with many kinds of bacteria at the risk of horizontal gene transfer.</p>
{{:Team:NTU-Taida/Templates/BSHero|Title=Stability and Safety|Content=<p>Every GM system that will function outside lab will face two major problems:system stability and safety! Without selective pressure ,we have to deal with plasmid instability ; to make our coli colonized bowel we have to use recA+ strains which may cause plasmid multimer. Our GM coli will also contact with many kinds of bacteria at the risk of horizontal gene transfer.</p>
<p>The following segment is our struggle against these obstacles.</p>}}
<p>The following segment is our struggle against these obstacles.</p>}}
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==Stability of Delivery System==
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===Briefing===
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As our system will function outside the labrotory and human gut lack for antibiotic selection pressure, the vector stability is the critical point that determine whether our system is applicable or not. Inspired by natural plasmid &amp; mobile gene element, we cope up with vector instability by incorporating '''partition system''', '''Multimer resolution system''' and '''toxin antitoxin system''' these modules into our design.
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Revision as of 10:33, 25 September 2012

Circuit

The main circuit is designed to detect the presence of fatty acid in the intestinal environment and produce the peptide drug (GLP-1 in this case) and cell penetrating peptide (CPP) as response. There are two core systems: double repressors and quorum sensing.

Stability and Safety

Every GM system that will function outside lab will face two major problems:system stability and safety! Without selective pressure ,we have to deal with plasmid instability ; to make our coli colonized bowel we have to use recA+ strains which may cause plasmid multimer. Our GM coli will also contact with many kinds of bacteria at the risk of horizontal gene transfer.

The following segment is our struggle against these obstacles.

Stability of Delivery System

Briefing

As our system will function outside the labrotory and human gut lack for antibiotic selection pressure, the vector stability is the critical point that determine whether our system is applicable or not. Inspired by natural plasmid & mobile gene element, we cope up with vector instability by incorporating partition system, Multimer resolution system and toxin antitoxin system these modules into our design.