Part:BBa_K1355004:Design

Design notes

For this genetic construction, we followed these summarized steps in the following image:

1) Transformation of DH5-alpha with the Biobrick - Strong RBS + merA (mercuric ion reductase)+ terminator (BBa_ B0015) - BBa_K1355000 and with the Essential Biobrick - Regulation and transport of mercury - BBa_K1355001 that contains a bidiretional promotor regulated by the MerR protein.

2) Extraction and quantification of plasmid DNA of the BBa_K1355000 and BBa_K1355001;

2) Verifying the electrophoretic profile of the extracted plasmid DNA;

Figure 1: Eletrophoretic profile of the BBa_K1355001 and of BBa_K1355000 plasmid DNA.

3) Restriction enzyme digestion of the BBa_K1355001 with SpeI and EcoRI and of BBa_K1355000 with EcoRI and XbaI aiming to isolate the biobrick fragment and linearize the vector, respectively;

4) Checking the electrophoretic profile of digested samples;

Figure 2: (1) Electrophoretic profile of BBa_K1355000 do not digested and (2) digested with XbaI and EcoRI; (3) Eletrophoretic profile of the BBa_K1355001 do not digested and (4) digested with EcoRI and XbaI.

5) Purification from agarose gel of the fragment (Biobrick BBa_K1355001) and the linearized vector (BBa_K1355000);

4) Checking the electrophoretic profile of purified samples;

Figure 3: (1) Eletrophoretic profile of BBa_K1355000 (linearized vector) purified; B) Eletrophoretic profile of BBa_K1355001 (fragment) purified.

6) Ligation of the linearized vector with fragment using T4 DNA ligase;

7) Transformation of the ligation in DH5-alpha;

Figure 4: Mercury Bacter Hg bioremediator (DH5-alpha transformed with BBa_K1355004)

8) Extraction of plasmid DNA with our bioremediator constrution from DH5-alpha transformed;

9) Check the electrophoretic profile to see results of samples linked;

Figure 5: Electrophoretic profile of BBa_K1355004 plasmid DNA in pBSK.

10) Restriction enzyme digestion of BBa_K1355001 + BBa_K1355000 (BBa_K1355004) with EcoRI + PstI aiming to analyze the fragment size to be isolated;

11) Checking the electrophoretic profile of the digested sample to obtain results showing that the isolated fragment is the junction of BBa_K1355001 + BBa_K1355000 in pBSK;

Figure 6: Eletrophoretic profile of the BBa_K1355003 do not digested; digested only with EcoRI; digested only with PstI; and digested with EcoRI + PstI, respectively.