Team:WLC-Milwaukee/Experiments
Wet Lab
Our Wet Lab efforts focused on first designing our parts in such a way as to test new versions of past WLC-iGEM binding proteins for optimization and use in our test kit. Our work then turned to successfully sub-cloning our new parts (BBa_K2589000, BBa_K2589002 ) from the pETail4 plasmid containing the lambda phage genome into both pTrc99a and pSB1C3 along with improving a past part BBa_K2452002 to create the composite part BBa_K2589001. Our final focus in WetLab was to purify the proteins from our new parts using Nickel column purification (as most of our parts contain a His tag element) and then confirming expression or protein presence.
Part Design
Our Wet Lab team and Dr. Werner met early in the year to discuss the full spectrum of possible parts we would attempt to create and submit, and as with many iGEM teams we set our goals a bit too high, hoping to create a series of fusion proteins with which to better analyze our test kit on top of the basic parts needed for our system. We analyzed the sequence of the pTrc99a plasmid and decided to use the trc-promoter BBa_K2042004 for induction of all of our lambda phage tail protein parts with IPTG. Because the part sample for this promoter has not been released, primers had to be designed to input our parts into the pTrc99a backbone and then further clone our parts into pSB1C3 with the trc-promoter from the pTrc99a backbone. The basic parts we designed at the beginning of our project include BBa_K2589000 and BBa_K2589002, and an improved composite part BBa_K2589001 consisting of BBa_K2452002 and BBa_K2042004. Dr. Werner helped us design our primers in a major way ensuring our sequences were accurate and should work as expected. We did run into some problems with low gene amplification during PCR and ended up increasing the size of our original primers by 1bp.
Cloning
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Protein Expression
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