Universität zu Köln

Balparda, Manuel ORCID: 0000-0001-5771-4790, Elsasser, Marlene, Badia, Mariana B., Giese, Jonas ORCID: 0000-0001-5970-1037, Bovdilova, Anastasiia, Huedig, Meike, Reinmuth, Lisa, Eirich, Jurgen, Schwarzlaender, Markus, Finkemeier, Iris ORCID: 0000-0002-8972-4026, Schallenberg-Ruedinger, Mareike and Maurino, Veronica G. (2022). Acetylation of conserved lysines fine-tunes mitochondrial malate dehydrogenase activity in land plants. Plant J., 109 (1). S. 92 - 112. HOBOKEN: WILEY. ISSN 1365-313X

Full text not available from this repository.

Abstract

Plants need to rapidly and flexibly adjust their metabolism to changes of their immediate environment. Since this necessity results from the sessile lifestyle of land plants, key mechanisms for orchestrating central metabolic acclimation are likely to have evolved early. Here, we explore the role of lysine acetylation as a post-translational modification to directly modulate metabolic function. We generated a lysine acetylome of the moss Physcomitrium patens and identified 638 lysine acetylation sites, mostly found in mitochondrial and plastidial proteins. A comparison with available angiosperm data pinpointed lysine acetylation as a conserved regulatory strategy in land plants. Focusing on mitochondrial central metabolism, we functionally analyzed acetylation of mitochondrial malate dehydrogenase (mMDH), which acts as a hub of plant metabolic flexibility. In P. patens mMDH1, we detected a single acetylated lysine located next to one of the four acetylation sites detected in Arabidopsis thaliana mMDH1. We assessed the kinetic behavior of recombinant A. thaliana and P. patens mMDH1 with site-specifically incorporated acetyl-lysines. Acetylation of A. thaliana mMDH1 at K169, K170, and K334 decreases its oxaloacetate reduction activity, while acetylation of P. patens mMDH1 at K172 increases this activity. We found modulation of the malate oxidation activity only in A. thaliana mMDH1, where acetylation of K334 strongly activated it. Comparative homology modeling of MDH proteins revealed that evolutionarily conserved lysines serve as hotspots of acetylation. Our combined analyses indicate lysine acetylation as a common strategy to fine-tune the activity of central metabolic enzymes with likely impact on plant acclimation capacity.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Balparda, Manuel UNSPECIFIED orcid.org/0000-0001-5771-4790 UNSPECIFIED Elsasser, Marlene UNSPECIFIED UNSPECIFIED UNSPECIFIED Badia, Mariana B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Giese, Jonas UNSPECIFIED orcid.org/0000-0001-5970-1037 UNSPECIFIED Bovdilova, Anastasiia UNSPECIFIED UNSPECIFIED UNSPECIFIED Huedig, Meike UNSPECIFIED UNSPECIFIED UNSPECIFIED Reinmuth, Lisa UNSPECIFIED UNSPECIFIED UNSPECIFIED Eirich, Jurgen UNSPECIFIED UNSPECIFIED UNSPECIFIED Schwarzlaender, Markus UNSPECIFIED UNSPECIFIED UNSPECIFIED Finkemeier, Iris UNSPECIFIED orcid.org/0000-0002-8972-4026 UNSPECIFIED Schallenberg-Ruedinger, Mareike UNSPECIFIED UNSPECIFIED UNSPECIFIED Maurino, Veronica G. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-589464
DOI:	10.1111/tpj.15556
Journal or Publication Title:	Plant J.
Volume:	109
Number:	1
Page Range:	S. 92 - 112
Date:	2022
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1365-313X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MULTIPLE SEQUENCE ALIGNMENT; SITE-SPECIFIC ACETYLATION; PHYSCOMITRELLA-PATENS; PROTEIN ACETYLATION; METABOLISM; REVEALS; PHOTOSYNTHESIS; LEAF; QUANTIFICATION; RESPIRATION Multiple languages Plant Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58946