Coding

Part:BBa_K382020

Designed by: Patrick Boyle   Group: iGEM10_Harvard   (2010-10-26)
Revision as of 15:35, 5 November 2010 by Pmboyle (Talk | contribs)

Arabidopsis optimized Brazzein

Brazzein is a sweet-tasting protein that is found in the Western African fruit, the Oubli (Pentadiplandra brazzeana). The protein consists of a 54 amino acid sequence. It is sweeter than sugar and is used as an alternative low calorie sweetener.

We characterized[http://2010.igem.org/Team:Harvard/flavor/results] expression of the YFP-tagged version of this part in E. coli. BBa_K382041

BBa_K382020 is an Arabidopsis codon-optimized version of brazzein. We characterized expression of YFP-tagged versions in E. coli. The C-terminal 2xYFP tagged version has been submitted to the registry (BBa_K382041). 2xYFP-tagged miraculin was expressed from a IPTG-inducible Novagen Duet vector that was adapted to the BioBrick standard (described in [http://www.jbioleng.org/content/4/1/3 Agapakis et al., JBE, 2010]).

The graphs below show IPTG-induction of miraculin over time in E. coli liquid cell culture (red line) compared to uninduced cultures (blue line). 2xYFP tags were attached to either N- (panel C) or C- terminus (panel D) of miraculin to ensure that YFP position had no influence over expression. In all cases relative miraculin expression (indicated by YFP fluorescence) had appreciably increased after 120 minutes as compared to the non-induced E. Coli.

Note: Panels (A) and (B) show similar characterization of another flavor protein, Arabidopsis codon-optimized miraculin.

YFP tag performance:
Mir BrazzYFP Fig 1-crop.jpeg

Strep tag performance: Brazzein strep western.jpg

Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    COMPATIBLE WITH RFC[12]
  • 21
    COMPATIBLE WITH RFC[21]
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]


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Categories
//cds
//chassis/eukaryote/athaliana
Parameters
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