Overexpression of PAD1 and FDC1 results in significant cinnamic acid decarboxylase activity in Saccharomyces cerevisiae
The S. cerevisiae PAD1 gene had been suggested to code for a cinnamic acid decarboxylase, converting trans -cinnamic acid to styrene. This was suggested for the reason that the over-expression of PAD1 resulted in increased tolerance toward cinnamic acid, up to 0.6 mM. We show that by over-expression...
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Published in | AMB Express Vol. 5; no. 1; p. 12 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
18.02.2015
Springer Nature B.V BioMed Central Ltd |
Subjects | |
Online Access | Get full text |
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Summary: | The
S. cerevisiae PAD1
gene had been suggested to code for a cinnamic acid decarboxylase, converting
trans
-cinnamic acid to styrene. This was suggested for the reason that the over-expression of
PAD1
resulted in increased tolerance toward cinnamic acid, up to 0.6 mM. We show that by over-expression of the
PAD1
together with the
FDC1
the cinnamic acid decarboxylase activity can be increased significantly. The strain over-expressing
PAD1
and
FDC1
tolerated cinnamic acid concentrations up to 10 mM. The cooperation of Pad1p and Fdc1p is surprising since the
PAD1
has a mitochondrial targeting sequence and the
FDC1
codes for a cytosolic protein. The cinnamic acid decarboxylase activity was also seen in the cell free extract. The activity was 0.019 μmol per minute and mg of extracted protein. The overexpression of
PAD1
and
FDC1
resulted also in increased activity with the hydroxycinnamic acids ferulic acid, p-coumaric acid and caffeinic acid. This activity was not seen when
FDC1
was overexpressed alone.
An efficient cinnamic acid decarboxylase is valuable for the genetic engineering of yeast strains producing styrene. Styrene can be produced from endogenously produced L-phenylalanine which is converted by a phenylalanine ammonia lyase to cinnamic acid and then by a decarboxylase to styrene. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2191-0855 2191-0855 |
DOI: | 10.1186/s13568-015-0103-x |