Cited by 58Amino Acid Enzymes and MetabolismEnzyme Structure and FunctionBiochemical and Molecular Research

Probing the active site of homoserine trans‐succinylase

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Rosen, Ran, Becher, Dörte, Büttner, Knut, Biran, Dvora, Hecker, Michael, Ron, Eliora Z.·2004·FEBS Letters

Abstract

Homoserine trans‐succinylase is the first enzyme in methionine biosynthesis of Escherichia coli and catalyzes the activation of homoserine via a succinylation reaction. The in vivo activity of this enzyme is subject to tight regulation by several mechanisms, including repression and activation of gene expression, feedback inhibition, temperature regulation and proteolysis. This complex regulation reflects the key role of this enzyme in bacterial metabolism. Here, we demonstrate – using proteomics and high‐resolution mass spectrometry – that succinyl is covalently bound to one of the two adjacent lysine residues at positions 45 and 46. Replacing these lysine residues by alanine abolished the enzymatic activity. These findings position the lysine residues, one of which is conserved, at the active site.

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Crossref · 10.1016/j.febslet.2004.10.037

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  1. Maxon, M.E. et al. (1989) Proc. Natl. Acad. Sci. USA 86, 85-89.

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Authors
Rosen, R., Becher, D., Büttner, K., Biran, D., Hecker, M., & Ron, E. Z.
Affiliations
  • Tel Aviv University (IL)
  • Universität Greifswald (DE)
Corresponding author
Ron, Eliora Z.
Venue
FEBS Letters
Publisher
Wiley
Published
2004-10-27
Volume
577
Issue
3
Pages
386-392
ISSN
  • 0014-5793 (ISSN-L)
  • 1873-3468
OpenAlex
W2069918331
Cited by
58
References
24
Citations by year
2026: 2 · 2025: 6 · 2024: 2 · 2023: 2 · 2022: 7 · 2021: 9 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 6 · 2016: 5 · 2015: 2 · 2014: 1 · 2013: 3 · 2012: 1
FWCI
0.87
Type
journal article
Language
en
Open access
Locations
  • FEBS Letters (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Molecular Research
Keywords
active site, methionine biosynthesis, Escherichia coli, succinylation, lysine residues, enzyme regulation, product inhibition, gene expression regulation, proteolysis, temperature regulation
MeSH terms
Acyltransferases, Alanine, Binding Sites, Catalysis, Enzyme Activation, Escherichia coli, Homoserine, Isoelectric Focusing, Lysine, Methionine, Mass Spectrometry, Electrophoresis, Gel, Two-Dimensional, Gene Expression Regulation, Bacterial, Sequence Analysis, DNA, Amino Acid Substitution, Escherichia coli Proteins, Proteomics, Homoserine O-Succinyltransferase

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