Metabolite-level regulation of glucose-6-phosphate-dehydrogenase

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Glucose-6-phosphate dehydrogenase (G6PDH), the enzyme that catalyzes the first step of the oxidative pentose phosphate (OPP) pathway, plays a key role in this process. G6PDH is produced at the onset of nitrogen starvation but remains inactive in dormant cells, only to be rapidly reactivated when nitrogen is restored. In this study, we investigated the mechanisms underlying this enzymatic regulation and found that G6PDH inactivation is primarily due to the accumulation of inhibitory metabolites. Moreover, our findings demonstrate that metabolite-level regulation is the driving force behind the resuscitation program. This study highlights the critical importance of metabolite-level regulation in ensuring rapid and precise enzymatic control, enabling microorganisms to swiftly adapt to environmental changes and undergo developmental transitions.

SEEK ID: https://fairdomhub.org/studies/1326

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Projects: SCyCode The Autotrophy-Heterotrophy Switch in Cyanobacteria: Coherent De...

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