Cited by 58Microbial Metabolic Engineering and BioproductionFungal and yeast genetics researchMicrobial metabolism and enzyme function

Anaplerotic Role for Cytosolic Malic Enzyme in Engineered Saccharomyces cerevisiae Strains

Open access
Zelle, Rintze M., Harrison, Jacob C., Pronk, Jack T., van Maris, Antonius J. A.·2011·Applied and Environmental Microbiology

Abstract

Malic enzyme catalyzes the reversible oxidative decarboxylation of malate to pyruvate and CO 2 . The Saccharomyces cerevisiae MAE1 gene encodes a mitochondrial malic enzyme whose proposed physiological roles are related to the oxidative, malate-decarboxylating reaction. Hitherto, the inability of pyruvate carboxylase-negative (Pyc − ) S. cerevisiae strains to grow on glucose suggested that Mae1p cannot act as a pyruvate-carboxylating, anaplerotic enzyme. In this study, relocation of malic enzyme to the cytosol and creation of thermodynamically favorable conditions for pyruvate carboxylation by metabolic engineering, process design, and adaptive evolution, enabled malic enzyme to act as the sole anaplerotic enzyme in S. cerevisiae . The Escherichia coli NADH-dependent sfcA malic enzyme was expressed in a Pyc − S. cerevisiae background. When PDC2 , a transcriptional regulator of pyruvate decarboxylase genes, was deleted to increase intracellular pyruvate levels and cells were grown under a CO 2 atmosphere to favor carboxylation, adaptive evolution yielded a strain that grew on glucose (specific growth rate, 0.06 ± 0.01 h −1 ). Growth of the evolved strain was enabled by a single point mutation (Asp336Gly) that switched the cofactor preference of E. coli malic enzyme from NADH to NADPH. Consistently, cytosolic relocalization of the native Mae1p, which can use both NADH and NADPH, in a pyc1,2Δ pdc2 Δ strain grown under a CO 2 atmosphere, also enabled slow-growth on glucose. Although growth rates of these strains are still low, the higher ATP efficiency of carboxylation via malic enzyme, compared to the pyruvate carboxylase pathway, may contribute to metabolic engineering of S. cerevisiae for anaerobic, high-yield C 4 -dicarboxylic acid production.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1128/aem.02132-10

Cites

40 of 40 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Other studies used ethylmethanesulfonate (EMS) treated Bacillus boroniphilus to select for increased boron resistance or EMS-treated S. cerevisiae in order to achieve increased nutrient utilization and stress resistance.

    “Other studies used ethylmethanesulfonate (EMS) treated Bacillus boroniphilus to select for increased boron resistance [88] or EMS-treated S. cerevisiae in order to achieve increased nutrient utilization and stress resistance [95,113,114].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 3

  1. [11]Flikweert, M. T., et al. 1996. Pyruvate decarboxylase: an indispensable enzyme for growth of Saccharomyces cerevisiae on glucose. Yeast 12:247-257. [DOI] [PubMed] [Google Scholar]
  2. [13]Fuck, E., G. Stärk, and F. Radler. 1973. Äpfelsäurestoffwechsel bei Saccharomyces. II. Anreicherung und Eigenschaften eines Malatenzyms. Arch. Microbiol. 89:223-231. [PubMed] [Google Scholar]
  3. [26]Sauer, U., and B. J. Eikmanns. 2005. The PEP-pyruvate-oxaloacetate node as the switch point for carbon flux distribution in bacteria. FEMS Microbiol. Rev. 29:765-794. [DOI] [PubMed] [Google Scholar]

Cited by

Sorted by citations

Authors
Zelle, R. M., Harrison, J. C., Pronk, J. T., & van Maris, A. J. A.
Affiliations
  • Delft University of Technology (NL)
  • Microbia, Inc., 60 Westview Street, Lexington, Massachusetts 02421
  • Department of Biotechnology, Delft University of Technology and Kluyver Centre for Genomics of Industrial Fermentation, Julianalaan 67, 2628 BC Delft, Netherlands
Venue
Applied and Environmental Microbiology
Published
2011-02
Volume
77
Issue
3
Pages
732-738
ISSN
  • 0099-2240 (ISSN-L)
  • 1098-5336
OpenAlex
W2131708560
Cited by
58
References
40
Citations by year
2026: 3 · 2024: 4 · 2023: 5 · 2022: 2 · 2021: 6 · 2020: 2 · 2019: 3 · 2018: 1 · 2017: 2 · 2016: 4 · 2015: 4 · 2014: 6 · 2013: 8 · 2012: 4
FWCI
2.08
Type
journal article
Language
en
Open access
Locations
  • Applied and Environmental Microbiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Research Repository (Delft University of Technology) (submittedVersion)
  • Zenodo (CERN European Organization for Nuclear Research) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
Technische Universiteit Delft
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial metabolism and enzyme function
Keywords
malic enzyme, anaplerosis, pyruvate carboxylation, Saccharomyces cerevisiae, SFCA, adaptive evolution, metabolic engineering
MeSH terms
Anaerobiosis, Biotechnology, Carbon Dioxide, Cytosol, Escherichia coli, Genetic Engineering, Glucose, Malate Dehydrogenase, Malates, Saccharomyces cerevisiae, Point Mutation, Pyruvic Acid, Saccharomyces cerevisiae Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review