A multifunctional enzyme is involved in bacterial ether lipid biosynthesis
Wolfram Lorenzen1, Tilman Ahrendt1, Kenan A J Bozhüyük1
1Merck-Stiftungsprofessur für Molekulare Biotechnologie, Fachbereich Biowissenschaften, Johann Wolfgang Goethe-Universität Frankfurt, Frankfurt, Germany.
Nature Chemical Biology
|May 13, 2014
Summary
Researchers identified the first gene cluster for ether lipid biosynthesis in myxobacteria, crucial for development. Mutations in the ElbD enzyme disrupted fruiting body formation and sporulation in these bacteria.
Area of Science:
- Microbiology
- Biochemistry
- Molecular Biology
Background:
- Ether lipids, derived from fatty acids, are found in vertebrates and some bacteria.
- Their biosynthesis pathways are not fully understood, particularly in prokaryotes.
Purpose of the Study:
- To identify and characterize the gene cluster responsible for ether lipid biosynthesis in myxobacteria.
- To investigate the role of these lipids in the developmental processes of myxobacteria.
Main Methods:
- Identification of a gene cluster encoding a multifunctional enzyme, ElbD, in myxobacteria.
- Characterization of elbD mutants in Myxococcus xanthus and Stigmatella aurantiaca.
Main Results:
- The identified gene cluster is involved in the biosynthesis of fatty acid-derived ether lipids.
- The ElbD enzyme exhibits similarity to polyketide synthases, suggesting a novel biosynthetic mechanism.
- Disruption of elbD in M. xanthus and S. aurantiaca impaired fruiting body formation and sporulation.
Conclusions:
- This study describes the first known gene cluster for ether lipid biosynthesis in myxobacteria.
- Ether lipids are essential for the proper development and sporulation of myxobacteria.
- The ElbD enzyme represents a novel target for understanding ether lipid synthesis.
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