1
|
Füßl M, König AC, Eirich J, Hartl M, Kleinknecht L, Bohne AV, Harzen A, Kramer K, Leister D, Nickelsen J, Finkemeier I. Dynamic light- and acetate-dependent regulation of the proteome and lysine acetylome of Chlamydomonas. Plant J 2022; 109:261-277. [PMID: 34709689 DOI: 10.1111/tpj.15555] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/19/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
The green alga Chlamydomonas reinhardtii is one of the most studied microorganisms in photosynthesis research and for biofuel production. A detailed understanding of the dynamic regulation of its carbon metabolism is therefore crucial for metabolic engineering. Post-translational modifications can act as molecular switches for the control of protein function. Acetylation of the ɛ-amino group of lysine residues is a dynamic modification on proteins across organisms from all kingdoms. Here, we performed mass spectrometry-based profiling of proteome and lysine acetylome dynamics in Chlamydomonas under varying growth conditions. Chlamydomonas liquid cultures were transferred from mixotrophic (light and acetate as carbon source) to heterotrophic (dark and acetate) or photoautotrophic (light only) growth conditions for 30 h before harvest. In total, 5863 protein groups and 1376 lysine acetylation sites were identified with a false discovery rate of <1%. As a major result of this study, our data show that dynamic changes in the abundance of lysine acetylation on various enzymes involved in photosynthesis, fatty acid metabolism, and the glyoxylate cycle are dependent on acetate and light. Exemplary determination of acetylation site stoichiometries revealed particularly high occupancy levels on K175 of the large subunit of RuBisCO and K99 and K340 of peroxisomal citrate synthase under heterotrophic conditions. The lysine acetylation stoichiometries correlated with increased activities of cellular citrate synthase and the known inactivation of the Calvin-Benson cycle under heterotrophic conditions. In conclusion, the newly identified dynamic lysine acetylation sites may be of great value for genetic engineering of metabolic pathways in Chlamydomonas.
Collapse
Affiliation(s)
- Magdalena Füßl
- Plant Proteomics, Max Planck Institute for Plant Breeding Research, Carl von Linné Weg 10, Cologne, DE-50829, Germany
- Faculty of Biology, Ludwig-Maximilians-University, Grosshaderner Strasse 2-4, Munich, DE-82152, Germany
- Plant Physiology, Institute of Plant Biology and Biotechnology, University of Muenster, Schlossplatz 7, Muenster, DE-48149, Germany
| | - Ann-Christine König
- Plant Proteomics, Max Planck Institute for Plant Breeding Research, Carl von Linné Weg 10, Cologne, DE-50829, Germany
- Faculty of Biology, Ludwig-Maximilians-University, Grosshaderner Strasse 2-4, Munich, DE-82152, Germany
- Helmholtz Zentrum München, German Research Center for Environmental Health, Research Unit Protein Science, Heidemannstr. 1, Munich, DE-80939, Germany
| | - Jürgen Eirich
- Plant Physiology, Institute of Plant Biology and Biotechnology, University of Muenster, Schlossplatz 7, Muenster, DE-48149, Germany
| | - Markus Hartl
- Plant Proteomics, Max Planck Institute for Plant Breeding Research, Carl von Linné Weg 10, Cologne, DE-50829, Germany
- Faculty of Biology, Ludwig-Maximilians-University, Grosshaderner Strasse 2-4, Munich, DE-82152, Germany
- Mass Spectrometry Facility, Max Perutz Labs, University of Vienna, Vienna Biocenter (VBC), Dr. Bohr-Gasse 7, Vienna, AT-1030, Austria
| | - Laura Kleinknecht
- Faculty of Biology, Ludwig-Maximilians-University, Grosshaderner Strasse 2-4, Munich, DE-82152, Germany
| | - Alexandra-Viola Bohne
- Faculty of Biology, Ludwig-Maximilians-University, Grosshaderner Strasse 2-4, Munich, DE-82152, Germany
| | - Anne Harzen
- Plant Proteomics, Max Planck Institute for Plant Breeding Research, Carl von Linné Weg 10, Cologne, DE-50829, Germany
| | - Katharina Kramer
- Plant Proteomics, Max Planck Institute for Plant Breeding Research, Carl von Linné Weg 10, Cologne, DE-50829, Germany
| | - Dario Leister
- Faculty of Biology, Ludwig-Maximilians-University, Grosshaderner Strasse 2-4, Munich, DE-82152, Germany
| | - Jörg Nickelsen
- Faculty of Biology, Ludwig-Maximilians-University, Grosshaderner Strasse 2-4, Munich, DE-82152, Germany
| | - Iris Finkemeier
- Plant Proteomics, Max Planck Institute for Plant Breeding Research, Carl von Linné Weg 10, Cologne, DE-50829, Germany
- Faculty of Biology, Ludwig-Maximilians-University, Grosshaderner Strasse 2-4, Munich, DE-82152, Germany
- Plant Physiology, Institute of Plant Biology and Biotechnology, University of Muenster, Schlossplatz 7, Muenster, DE-48149, Germany
| |
Collapse
|