What does 2-deoxyglucose do to cells?

What does 2-deoxyglucose do to cells?

2-Deoxyglucose (2-DG) is a glucose analog that inhibits glycolysis9,10. 2-DG can compete with glucose to bind hexokinase (the first rate-limiting enzyme of glycolysis) in cells and inhibit metabolism of tumor cell, thereby inhibiting cell proliferation11.

Is 2-deoxyglucose a competitive inhibitor?

Although metrizamide, 2-deoxyglucose, and glucosamine are known to be competitive inhibitors of approximately equal potency for glucose of yeast hexokinase (Ki approximately 0.7 mM for all three), metrizamide is a much weaker competitive inhibitor (Ki about 20 mM) of rat brain hexokinase than either 2-deoxyglucose or …

How does 2-DG inhibit hexokinase?

However, 2-DG-P cannot be metabolized by the second enzyme in glycolysis, phosphoglucose isomerase (2). This leads to trapping and accumulation of 2-DG-P, which competitively inhibits hexokinase at the rate-limiting step of glycolysis. A direct consequence of 2-DG treatment is intracellular ATP depletion (3, 4).

Why does 2 deoxyglucose inhibit glycolysis?

Acting as a d-glucose mimic, 2-DG inhibits glycolysis due to formation and intracellular accumulation of 2-deoxy-d-glucose-6-phosphate (2-DG6P), inhibiting the function of hexokinase and glucose-6-phosphate isomerase, and inducing cell death.

Where does 2 deoxyglucose inhibit glycolysis?

2-Deoxy- d-glucose is a glucose molecule which has the 2-hydroxyl group replaced by hydrogen, so that it cannot undergo further glycolysis. As such; it acts to competitively inhibit the production of glucose-6-phosphate from glucose at the phosphoglucoisomerase level (step 2 of glycolysis).

How does 2 deoxyglucose inhibit glycolysis?

What type of inhibitor is 2 deoxyglucose?

2-Deoxyglucose is the most commonly used glycolytic inhibitor in plate-based experiments, and in some contexts its use can be difficult to interpret.

What type of molecule is hexokinase?

A hexokinase is an enzyme that phosphorylates hexoses (six-carbon sugars), forming hexose phosphate. In most organisms, glucose is the most important substrate for hexokinases, and glucose-6-phosphate is the most important product.

At what step does 2 deoxyglucose fail to react further and how does this further inhibit glycolysis?

Is D 2 Deoxygalactose the same chemical as D 2 deoxyglucose explain?

These two molecules are not the same because they differ in configuration at C−2 atoms.

What is the main function of hexokinase?

Hexokinase is the initial enzyme of glycolysis, catalyzing the phosphorylation of glucose by ATP to glucose-6-P. It is one of the rate-limiting enzymes of glycolysis. Its activity declines rapidly as normal red cells age.