Phosphotransferase

Phosphotransferases are a category of enzymes (EC number 2.7) which catalyze phosphorylation reactions. The general form is:

A—P + B ⇔ B—P + A

Where P is a phosphate group and A and B are the donating and accepting molecules, respectively.

Phosphostransferasesystem

This system is used by, for example, bacterias, to transport sugar (Glucose) into the cell. It is rather complex, and the first step of this reaction adds a Phosphor to the Glucose (via Phosphotransferase), producing Glucose-6-Phosphate. Due to the negative current of the Phosphate, this Glu6P can no longer freely leave the cell, and it is additionally the first reaction of Glycolysis (which will degrade the sugar to Pyruvate)

External links

Phosphotransferases at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

This enzyme-related article is a stub. You can help Wikipedia by expanding it.

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)