Team:Aix-Marseille/Results
Production of Laccase E.coli
To obtain our Laccase E.coli, we used the BioBrick Bba_K863006 and we removed its stop codon. Then we added to this BioBrick a promoter and a His-Tag.
Thanks to digestion, ligation and transformation, we managed to get our BioBrick named “01-35-02” with a size of about 1700 pb:
Figure A: Schematic representation of “01-35-02”
Figure A: Schematic representation of “01-35-02”
Figure B: Digestion from “01-35-02” miniprep to check the size of the insert
The band corresponds to the expected size for the insert, which is about 1700 pb.”
Figure C: Western Blot of the expression of “01-35-02” into E. coli
The expected size of the protein is about 53 kDa.
Laccase T.thermophilus from iGEM parts
To get our Laccase T. thermophilus, we used the BioBrick Bba_K863011 and we removed its stop codon.
Then we tried to add to this BioBrick a promoter and a His-Tag.
Unfortunately we managed to add only the promoter.
Figure A: Schematic representation of “01-35-02”
Then we inserted our BioBrick into E. coli strain (BL21) to express it. We induced it by addition of IPTG into the cell culture. We made a Western-Blot using a primary antibody against the His-tag and an anti-mouse secondary antibody conjugate with HRP (horseradish peroxidase). The expected size of the protein “01-35-02” is 53 kDa.
Then we tried to add to this BioBrick a promoter and a His-Tag.
Unfortunately we managed to add only the promoter.
Figure A: Schematic representation of “01-35-02”Then we inserted our BioBrick into E. coli strain (BL21) to express it. We induced it by addition of IPTG into the cell culture. We made a Western-Blot using a primary antibody against the His-tag and an anti-mouse secondary antibody conjugate with HRP (horseradish peroxidase). The expected size of the protein “01-35-02” is 53 kDa.
Figure E: Digestion from “01-36” miniprep to check the size of the insert
The band corresponds to the expected size for the insert, which is about 1500 pb.”Laccase T.thermophilus from IDT
We ordered from IDT a laccase optimized for an expression into E. coli.
From this optimised laccase, we added a promoter and a His-Tag.
This new BioBrick is named “01-30-02” with an expected size of about 1500 pb
Figure A : Schematic representation of “01-30-02”
From this optimised laccase, we added a promoter and a His-Tag.
This new BioBrick is named “01-30-02” with an expected size of about 1500 pb
Figure A : Schematic representation of “01-30-02”
Figure B: Digestion from “01-30-02” miniprep to check the size of the insert The band corresponds to the expected size for the insert, which is about 1500 pb.
