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   » Wiki: Hydrolase
Tag Wiki 'Hydrolase'.
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In , hydrolases constitute a class of that commonly function as biochemical that use water to a :

\ce{A-B + H2O} \quad \xrightarrow\text{{} \quad \ce{A-OH + B-H}

This typically results in dividing a larger molecule into smaller molecules. Some common examples of hydrolase enzymes are including , , glycosidases, , and nucleosidases.

Esterases cleave ester bonds in and phosphatases cleave off molecules. An example of crucial esterase is acetylcholine esterase, which assists in transforming the neuron impulse into the after the hydrolase breaks the into and . Acetic acid is an important metabolite in the body and a critical intermediate for other reactions such as . Lipases hydrolyze . Glycosidases cleave sugar molecules off carbohydrates and peptidases hydrolyze . Nucleosidases hydrolyze the bonds of .

Hydrolase enzymes are important for the body because they have degradative properties. In lipids, lipases contribute to the breakdown of fats and lipoproteins and other larger molecules into smaller molecules like fatty acids and . Fatty acids and other small molecules are used for synthesis and as a source of energy.


Nomenclature
Systematic names of hydrolases are formed as " hydrolase." However, common names are typically in the form " substrate base". For example, a is a hydrolase that cleaves .


Classification
Hydrolases are classified as EC 3 in the EC number classification of enzymes. Hydrolases can be further classified into several subclasses, based upon the bonds they act upon:


Clinical considerations
Hydrolase secreted by Lactobacillus jensenii in the human gut stimulates the to secrete that aids in the digestion of food.


Membrane-associated hydrolases
Many hydrolases, and especially associate with biological membranes as peripheral membrane proteins or anchored through a single transmembrane helix. Some others are multi-span transmembrane proteins, for example rhomboid protease.


Etymology and pronunciation
The word hydrolase () suffixes the combining form of to the hydrol syllables of .


See also

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