What does the "ase" in helicase mean?

The suffix "-ase" is used to signify an enzyme. In enzyme naming, an enzyme is denoted by adding - ase to the end of the name of the substrate on which the enzyme acts. It is also used to identify a particular class of enzymes that catalyze a specific type of reaction.

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Amylase (-) : Amylase is a digestive enzyme that catalyzes the decomposition of starch into sugar. It is produced in salivary glands and the.