Translational_Unit
Part:BBa_K1497013
Designed by: Bastian Wagner, Christian Mende, Andreas Schmidt, Max Dombrowsky Group: iGEM14_TU_Darmstadt (2014-10-07)
B0034-DFR
The biobrick B0034-DFR is a composite consisting of the biobrick DFR (BBa_K1497013) and RBS (Ellowitz 1999, BBa_B0034).
B0034 is a strong ribosome binding site with a biology efficiency of 1.0. The dihydroflavonol 4-reductase (DFR; EC 1.1.1.219) from the plant Dianthus caryophyllus is an enzyme, catalyzing the reversible conversion of dihydroflavonols e.g. dihydro-kaempferol or dihydroquercetin into their corresponding leucoanthocyanidin. This reaction is NADPH-dependent (Liew et al. 1998) but its counter reaction can also occur with NAD+ instead of NADP+ (Queen Mary University of London 2014). DFR contains 353 amino acids and has a molecular weight of approximately 39.4 kDa. The iGEM Team TU Darmstadt 2014 used the B0034-DFR and verified the function of the B0034-DFR in their pelargonidin operon (K1497023). |
Figure 1 Reaction of the DFR. One Dihydroflavonol reacts with NADPH to form a Leucoanthocyanidin. The reverse reaction works with NAD+ or NADP+. |
Sequence and Features
Assembly Compatibility:
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21INCOMPATIBLE WITH RFC[21]Illegal BamHI site found at 348
- 23COMPATIBLE WITH RFC[23]
- 25INCOMPATIBLE WITH RFC[25]Illegal AgeI site found at 100
- 1000INCOMPATIBLE WITH RFC[1000]Illegal BsaI.rc site found at 85
References
Chye-Fong Liew, Chiang-Shiomg Loh, Chong-Jin Goh, Saw-Hoon Lim 1998, 'The isolation, molecular characterization and expression of dihydroflavonol 4-reductase cDNA in the orchid, Bromheadia finlaysoniana', Plant Science, vol. 135, no. 2, pp. 161-169. Available from: ScienceDirect (31.08.2014)
Queen Mary University of London, EC 1.1.1.219. Available from: <http://www.chem.qmul.ac.uk/iubmb/enzyme/EC1/1/1/219.html> (31.08.2014)
[edit]
Categories
Parameters
//cds/biosynthesis
//cds/biosynthesis/anthocyanins
//cds/biosynthesis/anthocyanins
n/a | B0034-DFR |