Difference between revisions of "Part:BBa K1692007"
Daniel.kunin (Talk | contribs) |
Daniel.kunin (Talk | contribs) |
||
Line 4: | Line 4: | ||
<h2>Overview</h2> | <h2>Overview</h2> | ||
− | + | UbiX is a flavin prenyltransferase that normally plays a role in ubiquinone biosynthesis in E. coli. UbiX transfers a prenyl group from dimethylallyl monophosphate (DMAP) to flavin mononucleotide (FMN), thereby creating a cofactor that happens to be essential to the functionality of FDC. Our genetic construct includes the FDC gene, a T7 inducible promoter, a ribosome binding site, and a FLAG-tag peptide sequence for easy and efficient protein purification. We have sequenced our construct and verified that all these components are indeed present. We were able to successfully clone our construct into E. coli and induce expression with isopropyl β-D-1-thiogalactopyranoside (IPTG). A sodium dodecyl sulfate polyacrylamide gel electrophoresis confirmed that our FLAG-tag extraction selectively purified the UbiX enzyme. | |
[[File:SB2015_styrene_pathway.png|thumbnail|center|500px|<b>Styrene synthesis pathway</b> The enzymes of interest are phenylalanine ammonia lyase (PAL), ferulic acid decarboxylase (FDC), and a flavin prenyltransferase involved in ubiquinone biosynthesis called UbiX. PAL catalyzes the conversion of phenylalanine to trans-cinnamic acid, while FDC catalyzes the conversion of trans-cinnamic acid to styrene [1]. Recently, it has been discovered that a cofactor is required to activate FDC. This cofactor is a product of the reaction between dimethylallyl monophosphate (DMAP) and flavin mononucleotide (FMN), which is catalyzed by the enzyme UbiX [2].]]<br><br> | [[File:SB2015_styrene_pathway.png|thumbnail|center|500px|<b>Styrene synthesis pathway</b> The enzymes of interest are phenylalanine ammonia lyase (PAL), ferulic acid decarboxylase (FDC), and a flavin prenyltransferase involved in ubiquinone biosynthesis called UbiX. PAL catalyzes the conversion of phenylalanine to trans-cinnamic acid, while FDC catalyzes the conversion of trans-cinnamic acid to styrene [1]. Recently, it has been discovered that a cofactor is required to activate FDC. This cofactor is a product of the reaction between dimethylallyl monophosphate (DMAP) and flavin mononucleotide (FMN), which is catalyzed by the enzyme UbiX [2].]]<br><br> |
Revision as of 02:42, 18 September 2015
UbiX with T7 promoter and FLAG tag
Overview
UbiX is a flavin prenyltransferase that normally plays a role in ubiquinone biosynthesis in E. coli. UbiX transfers a prenyl group from dimethylallyl monophosphate (DMAP) to flavin mononucleotide (FMN), thereby creating a cofactor that happens to be essential to the functionality of FDC. Our genetic construct includes the FDC gene, a T7 inducible promoter, a ribosome binding site, and a FLAG-tag peptide sequence for easy and efficient protein purification. We have sequenced our construct and verified that all these components are indeed present. We were able to successfully clone our construct into E. coli and induce expression with isopropyl β-D-1-thiogalactopyranoside (IPTG). A sodium dodecyl sulfate polyacrylamide gel electrophoresis confirmed that our FLAG-tag extraction selectively purified the UbiX enzyme.
Experiments and Results
Reference
[1] Mckenna, Rebekah, Luis Moya, Matthew Mcdaniel, and David R. Nielsen. "Comparing in Situ Removal Strategies for Improving Styrene Bioproduction." Bioprocess Biosyst Eng Bioprocess and Biosystems Engineering (2014): 165-74. Print.
[2] White, Mark D., Karl A. P. Payne, Karl Fisher, Stephen A. Marshall, David Parker, Nicholas J. W. Rattray, Drupad K. Trivedi, Royston Goodacre, Stephen E. J. Rigby, Nigel S. Scrutton, Sam Hay, and David Leys. "UbiX Is a Flavin Prenyltransferase Required for Bacterial Ubiquinone Biosynthesis." Nature (2015): 502-06. Print.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21INCOMPATIBLE WITH RFC[21]Illegal BglII site found at 578
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]