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The enzyme sterol esterase (EC 3.1.1.13) catalyzes the reaction a sterol ester + H 2 O ⇌ {\displaystyle \rightleftharpoons } a sterol + a fatty acid This enzyme belongs to the family of hydrolases , specifically those acting on carboxylic ester bonds.
Sterol esters are a heterogeneous group of chemical compounds. They are created when the hydroxyl group of a sterol and a fatty acid undergo an esterification reaction. They can be found in trace amounts in every cell type but are highly enriched in foam cells and are common components of human skin oil .
This list contains a list of EC numbers for the third group, EC 3, hydrolases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology.
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Sterol esterase; Phospholipase; Several nucleases that degrade nucleic acids, like DNAase and RNAase; Pancreatic amylase that breaks down starch and glycogen which are alpha-linked glucose polymers. Humans lack the cellulases to digest the carbohydrate cellulose which is a beta-linked glucose polymer.
Sterol is an organic compound [1] with formula C 17 H 28 O , whose molecule is derived from that of gonane by replacement of a hydrogen atom on C3 position by a hydroxyl group.
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In biochemistry, an esterase is a class of enzyme that splits esters into an acid and an alcohol in a chemical reaction with water called hydrolysis (and as such, it is a type of hydrolase). A wide range of different esterases exist that differ in their substrate specificity, their protein structure , and their biological function.