By Kyle Albert & Josh Mixdorf. Why  Uncontrolled levels of estrogen in waste water treatment plants is a growing problem.  The high levels of estrogen.

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Presentation transcript:

By Kyle Albert & Josh Mixdorf

Why  Uncontrolled levels of estrogen in waste water treatment plants is a growing problem.  The high levels of estrogen have been found to cause feminization of fish that are exposed to it.  More studies are showing that it is having an effect on humans as well causing an increase in XXY genotypes in prenatal babies.

Goals  To detect the presence of estrogen.  To iluminate E. coli as a detection method.

Parts

BBa_K  When estrogen or an estrogen like compound is present the receptor binds to it and forms a homodimer.  This homodimer is then able to bind to an Estrogen Responsive Element (ERE BBA_K123002).

BBa_K  LacIQ ERE TetR  We believe that in conjunction with another part (Bba_K ER) ERE will detect estrogen.  We will use BBa_K123003, to bind to the ERE to act as our promoter.

BBa_J61139  Ribosome binding site  We will use the same coding sequence as this part but will buy it as just a stand of DNA instead of using a biobrick.

BBa_I  Firefly luciferase  Part is cloned into pSBAK3 vector with terminator.  Includes start and stop codon.

BBa_B1006  Terminator  Bidirectional, with the reverse estimated to be more effective than the forward.  We will include this terminator as a back up incase a problem occurs with stop codon from BBa_I  We will also buy the same DNA code sequence for this part instead of using a biobrick.

BBa_K (ER) BBa_K (ERE) RBS BBa_I (GFP) Terminator Order of Parts Assembly

How We Will Accomplish This  Step 1: Join the BioBricks in accordance with the manual 1. Join BBa_K with BBa_K Then add the RBS DNA with the EX prefix and S suffix to the BBa_I with the X prefix and the SP suffix 3. Then add the newly formed part with an EX prefix and the S suffix to the Terminator DNA that has X prefix and SP suffix 4. Now combine all parts specified above together: step one’s part with a EX prefix and a S suffix to step three’s part with a X prefix and a SP suffix

 Step 2: Introduce the new strand of DNA into a vector  Step 3: Using vector insert DNA into E. coli  Step 4: Grow the E. coli on an ager dish infused with estrogen and ampicillin  Step 5: If the bacteria grow and light up on the estrogen plate and not the ampicillin only plate we have succeeded

 Step 6: Once the strand has been tested and found to work we will then test variable concentrations of estrogen to find what needed to initiate and maintain the ER