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Protein investment costs are considered a major driver for the choice of alternative metabolic strategies. We tested this premise in Lactococcus lactis, a bacterium that exhibits a distinct, anaerobic version of the bacterial Crabtree/Warburg effect; with increasing growth rates it shifts from a high yield metabolic mode [mixed‐acid fermentation; 3 adenosine triphosphate (ATP) per glucose] to a low...
Dimerization and inactivation of ribosomes in Escherichia coli is a two‐step process that involves the binding of ribosome modulation factor (RMF) and hibernation promotion factor (HPF). Lactococcus lactis MG1363 expresses a protein, YfiALl, which associates with ribosomes in the stationary phase of growth and is responsible for dimerization of ribosomes. We show that full‐length YfiALl is necessary...