Biomod/2012/Tohoku/Team Sendai

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<area shape="rect" coords="310,8,390,45" href="http://openwetware.org/wiki/Biomod/2012/TeamSendai/Idea#PORTER" alt="Porter">
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<area shape="rect" coords="310,95,370,132" href="http://openwetware.org/wiki/Biomod/2012/TeamSendai/Idea#GATE" alt="Gate">
<area shape="rect" coords="310,95,370,132" href="http://openwetware.org/wiki/Biomod/2012/TeamSendai/Idea#GATE" alt="Gate">
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<area shape="rect" coords="33,213,165,245" href="http://openwetware.org/wiki/Biomod/2012/TeamSendai/Idea#MEMBRANEl" alt="Membarane">
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Please CLICK ITEMS, GATE, PORTER, AND MEMBRANE in the picture!
Please CLICK ITEMS, GATE, PORTER, AND MEMBRANE in the picture!

Current revision


Team Sendai Top

Abstract

All the creatures on Earth are made of cells. The exterior and the interior of the cell are compartmentalized by biomembranes.
A nanodevice that is able to actively transport only the specific oligonucleotide through the biomembrane has a great potential to deliver siRNA into the cell or to extract mRNA expressed in the cell.
Here, we decided to create a novel device with such a function.
We have designed a cylindrical injector/extractor device made of DNA origami (we named this device: CELL-GATE). Inside the cylinder, a cascade of single stranded DNAs is planted. Once the outer-most ssDNA binds to a target oligonucleotide, the target is passed to the inner-ones one by one because of the higher bonding energy assigned to the inner ones.
We also investigate how the cylinder penetrates the biomembrane by using liposome as a model membrane.

Project Image

Our PROJECT CELL-GATE is divided into three sub-projects:
PORTER: Composed of single stranded DNA (ssDNA) sequences. Each ssDNA is called Porter. Porters are designed to transfer target DNA strands into (or out from) the membrane.
GATE: Cylindrical DNA nanostructure connecting the inside and outside of membrane like a channel. A cascade of the Porters is planted inside this cylinder. We can use this Gate as an injector or an extractor.
MEMBRANE: The exterior and the interior of the cell are compartmentalized by biomembranes. We use liposome as a model membrane.

D-Heart Porter Gate Membarane Please CLICK ITEMS, GATE, PORTER, AND MEMBRANE in the picture!

Movie



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