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Convergent evolution links molybdenum insertase domains with organism-specific sequences.
Commun Biol
October 2024
Department of Plant Biology, Technische Universität Braunschweig, Braunschweig, Germany.
In all domains of life, the biosynthesis of the pterin-based Molybdenum cofactor (Moco) is crucial. Molybdenum (Mo) becomes biologically active by integrating into a unique pyranopterin scaffold, forming Moco. The final two steps of Moco biosynthesis are catalyzed by the two-domain enzyme Mo insertase, linked by gene fusion in higher organisms.
View Article and Find Full Text PDFNonphotochemical quenching kinetics GWAS in sorghum identifies genes that may play conserved roles in maize and Arabidopsis thaliana photoprotection.
Plant J
September 2024
Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
Photosynthetic organisms must cope with rapid fluctuations in light intensity. Nonphotochemical quenching (NPQ) enables the dissipation of excess light energy as heat under high light conditions, whereas its relaxation under low light maximizes photosynthetic productivity. We quantified variation in NPQ kinetics across a large sorghum (Sorghum bicolor) association panel in four environments, uncovering significant genetic control for NPQ.
View Article and Find Full Text PDFSelf-assembling viral histones are evolutionary intermediates between archaeal and eukaryotic nucleosomes.
Nat Microbiol
July 2024
Department of Biology, University of Oxford, Oxford, UK.
Nucleosomes are DNA-protein complexes composed of histone proteins that form the basis of eukaryotic chromatin. The nucleosome was a key innovation during eukaryotic evolution, but its origin from histone homologues in Archaea remains unclear. Viral histone repeats, consisting of multiple histone paralogues within a single protein, may reflect an intermediate state.
View Article and Find Full Text PDFGlycoside hydrolase family 32 enzymes from Bombella spp. catalyze the formation of high-molecular weight fructans from sucrose.
J Appl Microbiol
November 2023
Chair of Microbiology, Technical University of Munich, Gregor-Mendel-Straße 4, 85354 Freising, Germany.
Aims: Acetic acid bacteria of the genus Bombella have not been reported to produce exopolysaccharides (EPS). In this study, the formation of fructans by B. apis TMW 2.
View Article and Find Full Text PDFGenetic differences according to onset age and lung function in asthma: A cluster analysis.
Clin Transl Allergy
July 2023
Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul, Korea.
Background: The extent of differences between genetic risks associated with various asthma subtypes is still unknown. To better understand the heterogeneity of asthma, we employed an unsupervised method to identify genetic variants specifically associated with asthma subtypes. Our goal was to gain insight into the genetic basis of asthma.
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