The yeast Torulopsis glabrata CCTCC M202019, which is used for industrial pyruvate production, was chosen to explore the suitability of engineering this multi vitamin auxotrophic yeast for increased malate production. Various metabolic engineering strategies were used to manipulate carbon flux from pyruvate to malate: (i) overexpression of pyruvate carboxylase and malate dehydrogenase; (ii) identification of the bottleneck in malate production by model iNX804; (iii) simultaneous overexpression of genes RoPYC, RoMDH and SpMAE1. Using these strategies, 8.5 g L-1 malate was accumulated in the engineered strain T.G-PMS, which was about 10 fold greater than that of the control strain T.G-26. The results presented here suggest that T. glabrata CCTCC M202019 is a promising candidate for industrial malate production. (C) 2013 Elsevier Inc. All rights reserved.
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
Canelas, Andre B.
;
ten Pierick, Angela
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
ten Pierick, Angela
;
Ras, Cor
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
Ras, Cor
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Seifar, Reza M.
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
Seifar, Reza M.
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van Dam, Jan C.
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
van Dam, Jan C.
;
van Gulik, Walter M.
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
van Gulik, Walter M.
;
Heijnen, Joseph J.
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
Canelas, Andre B.
;
ten Pierick, Angela
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
ten Pierick, Angela
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Ras, Cor
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
Ras, Cor
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Seifar, Reza M.
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
Seifar, Reza M.
;
van Dam, Jan C.
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
van Dam, Jan C.
;
van Gulik, Walter M.
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands
van Gulik, Walter M.
;
Heijnen, Joseph J.
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Delft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, NetherlandsDelft Univ Technol, Dept Biotechnol, Kluyver Ctr Genom Ind Fermentat, NL-2628 BC Delft, Netherlands