"
Team:Alberta/Protocols
From 2013.igem.org
| Line 437: | Line 437: | ||
</div> | </div> | ||
<div class="block"> | <div class="block"> | ||
| - | <p> | + | <p>Our project utilized the “Bead Assembly Method” developed through Project |
| - | + | <a href="https://2009.igem.org/Team:Alberta">�Genomikon</a>� and Project � | |
| - | + | <a href="https://2010.igem.org/Team:Alberta/Tour/biobytes">�Biobytes�</a> by | |
| - | + | the 2010 and 2009 University of Alberta iGEM teams.</p> | |
| - | + | ||
| - | + | <p>After creating a sample map (with a highly favorable first-place solution), the Bead Assembly protocol was | |
| - | + | modified to incorporate concentrations that were relevant to our project map. We call this our first working | |
| - | + | Four-node �<a href="TSP doc">Travelling Salesman Protocol</a>�.</p> | |
| - | + | <img src="Bead assembly method" style="width:100%;"></img> | |
| - | + | ||
| - | + | <p>This assembly method allowed for sequential attachment of DNA pieces onto a magnetic bead or onto DNA pieces already anchored to the magnetic bead. This anchor allows for easy separation of the excess, unbound DNA during the wash step.</p> | |
| - | + | ||
| + | <p>All constructs were initiated by ligating the origin of replication to the DNA attached to the beads (step 1) in microcentrifuge tubes. Once ligation was completed, the reaction medium was removed while the beads were kept in the tube using a magnet. A new reaction solution, containing the genes representing all possible paths from the origin city, was then added for ligation (step 2). Again, once ligation was completed the reaction medium was removed while the beads were kept in the tube. A new reaction solution, this time containing the linkers representing cities, was added for ligation (steps). These steps were repeated until the 10 steps necessary to builds our solutions (plasmids) were performed. <p> | ||
| + | |||
| + | <p>As can be seen from the DNA agarose gel figure, the efficiency of the sequential assembly reached 90%. The length of the constructs increased as expected with the addition of each new path and city (gene and linker). Few constructs were not incorporating the parts to be added in a step. This allowed us to obtain plasmids for all possible solutions in a single procedure using a few assembly steps (parallel production of multiple, diverse solutions). � | ||
| + | For more, see our �step-by-step protocol of the <a href="#">Bead Assembly Method</a>�</p> | ||
</div> | </div> | ||
</div> | </div> | ||
Revision as of 23:06, 27 September 2013
The Littlest Mapmaker
"Exploration into the world of DNA Computing"
Team Alberta: University of Alberta
Protocols
Our project utilized the “Bead Assembly Method” developed through Project �Genomikon� and Project � �Biobytes� by the 2010 and 2009 University of Alberta iGEM teams.
After creating a sample map (with a highly favorable first-place solution), the Bead Assembly protocol was modified to incorporate concentrations that were relevant to our project map. We call this our first working Four-node �Travelling Salesman Protocol�.
This assembly method allowed for sequential attachment of DNA pieces onto a magnetic bead or onto DNA pieces already anchored to the magnetic bead. This anchor allows for easy separation of the excess, unbound DNA during the wash step.
All constructs were initiated by ligating the origin of replication to the DNA attached to the beads (step 1) in microcentrifuge tubes. Once ligation was completed, the reaction medium was removed while the beads were kept in the tube using a magnet. A new reaction solution, containing the genes representing all possible paths from the origin city, was then added for ligation (step 2). Again, once ligation was completed the reaction medium was removed while the beads were kept in the tube. A new reaction solution, this time containing the linkers representing cities, was added for ligation (steps). These steps were repeated until the 10 steps necessary to builds our solutions (plasmids) were performed.
As can be seen from the DNA agarose gel figure, the efficiency of the sequential assembly reached 90%. The length of the constructs increased as expected with the addition of each new path and city (gene and linker). Few constructs were not incorporating the parts to be added in a step. This allowed us to obtain plasmids for all possible solutions in a single procedure using a few assembly steps (parallel production of multiple, diverse solutions). � For more, see our �step-by-step protocol of the Bead Assembly Method�
