Team:Tufts/Project

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We have devised a method to introduce a DNA sequence which encodes an RNA aptamer (i.e. - an  
We have devised a method to introduce a DNA sequence which encodes an RNA aptamer (i.e. - an  

Revision as of 18:03, 15 August 2014

Tufts iGEM 2014

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Ribosponge Project Description:
We have devised a method to introduce a DNA sequence which encodes an RNA aptamer (i.e. - an oligonucleotide sequence which binds to a specific molecule) into a non-pathogenic E. coli strain. We have dubbed this RNA aptamer a “ribosponge” due to its unique mode of action. The ribosponge binds cyclic di-GMP, a secondary intracellular messenger which signals bacteria to enter a persistent or biofilm state. The signal is universal among many species such as E. coli, P. aeruginosa, and M. tuberculosis. Blocking the signal of c-di-GMP by binding it with an aptamer could prevent the persistent state in these and other pathogens. In order to ferry the sequence encoding the aptamer from our non-pathogenic E. coli into other bacteria of the same species, we plan on using an M13 phage which does not kill the bacteria. The project has also inspired our collaboration with the Rathneau Institute and SYNENERGENE as we look at the feasability of developing ribosponge into a product, and examine the regulatory, legal, and ethical challenges of packing it into a bacteriophage.

Project Description

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