# Regulation of Glucose Metabolism by NAD$^{+}$ and ADP-Ribosylation

Hopp, Ann-Katrin; Grüter, Patrick; Hottiger, Michael O (2019). Regulation of Glucose Metabolism by NAD$^{+}$ and ADP-Ribosylation. Cells, 8(8):pii: E890.

## Abstract

Cells constantly adapt their metabolic pathways to meet their energy needs and respond to nutrient availability. During the last two decades, it has become increasingly clear that NAD$^{+}$, a coenzyme in redox reactions, also mediates several ubiquitous cell signaling processes. Protein ADP-ribosylation is a post-translational modification that uses NAD$^{+}$ as a substrate and is best known as part of the genotoxic stress response. However, there is increasing evidence that NAD$^{+}$-dependent ADP-ribosylation regulates other cellular processes, including metabolic pathways. In this review, we will describe the compartmentalized regulation of NAD$^{+}$ biosynthesis, consumption, and regeneration with a particular focus on the role of ADP-ribosylation in the regulation of glucose metabolism in different cellular compartments.

## Abstract

Cells constantly adapt their metabolic pathways to meet their energy needs and respond to nutrient availability. During the last two decades, it has become increasingly clear that NAD$^{+}$, a coenzyme in redox reactions, also mediates several ubiquitous cell signaling processes. Protein ADP-ribosylation is a post-translational modification that uses NAD$^{+}$ as a substrate and is best known as part of the genotoxic stress response. However, there is increasing evidence that NAD$^{+}$-dependent ADP-ribosylation regulates other cellular processes, including metabolic pathways. In this review, we will describe the compartmentalized regulation of NAD$^{+}$ biosynthesis, consumption, and regeneration with a particular focus on the role of ADP-ribosylation in the regulation of glucose metabolism in different cellular compartments.

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