Glükosa1fosfaataas

Glükosa1fosfaataas, also known as glucose-1-phosphate adenylyltransferase, is an enzyme involved in the synthesis of adenosine diphosphate glucose (ADP-glucose) from glucose-1-phosphate and adenosine triphosphate (ATP). This reaction is a crucial step in the biosynthesis of starch in plants and glycogen in bacteria. The enzyme catalyzes the transfer of the glucose-1-phosphate moiety to ATP, releasing pyrophosphate. In plants, this enzyme plays a key role in starch accumulation, which serves as an energy reserve. In bacteria, it is essential for glycogen synthesis, another form of energy storage. The activity of glükosa1fosfaataas is often regulated by various metabolic signals, ensuring that energy storage pathways are activated when needed and suppressed when energy is scarce. This regulation helps maintain cellular homeostasis. Genetic mutations affecting glükosa1fosfaataas can lead to impaired carbohydrate metabolism, impacting growth and development in plants and microorganisms.