Cells must continuously adjust metabolic output to maintain homeostasis under changing environmental conditions, yet the mechanisms that enable rapid and reversible control of pathway activity remain largely unknown. The methylerythritol phosphate (MEP) pathway, of bacterial origin and conserved ...
INTRODUCTION: The extraction solvent mixtures were optimized for untargeted metabolomics analysis of microbial communities from two laboratory scale activated sludge reactors performing enhanced biological phosphorus removal (EBPR).
OBJECTIVE: To develop a ...
Cells maintain metabolite homeostasis (metabolostasis) by buffering fluctuations in metabolite levels, yet the limits of this buffering and the mechanisms underlying metabolic toxicity remain poorly understood. To study this, we systematically overfed metabolites in Saccharomyces cerevisiae and q...
In natural environments, photosynthetic organisms adjust their metabolism to cope with the fluctuating availability of combined nitrogen sources, a growth-limiting factor. For acclimation, the dynamic degradation/synthesis of tetrapyrrolic pigments, as well as of the amino acid arginine, is ...
Ubiquitin-like protein ISG15 (interferon-stimulated gene 15) has been implicated in the regulation of central carbon metabolism, but conflicting findings across experimental systems have limited mechanistic insight. Here, we applied a multi-omics approach in cells ectopically expressing the ISGyl...
Gene duplication is a major driver of biological complexity, yet the persistence of highly similar paralogous factors suggests the existence of context-dependent functions that remain incompletely understood. Certain conserved components of the mammalian RNA processing machinery exhibit striking ...