Question

Write briefly note on enzyme nomenclature in 3 marks

Answer 1

Enzyme nomenclature. ... In some enzymes this is the only component in the structure. However there are additional non-protein ...

Answer 2

Answer :-

Enzymes are named in many different ways. The rules for naming enzymes, are as follows :-

• Enzymes are usually named by adding the suffix- "ase" to the name of the substrate. (Eg: Urea-Urease, Arginine-Arginase, Tyrosin-Tyrosinage, Uric acid-Uricase and Amylum-Amylase)

• With suffix "lytic"- Proteolytic (Protien), Lipolytic (Lipid) and Sucrolytic (Sucrose).

• Some enzymes end with "zyme"- Lysozyme (from the Greek word "lysis" which means "to dissolve").

Extra Information :-

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• "Lysozyme" is an enzyme which is found in tears and saliva.

• Some enzymes have traditional names like "Pepsin" and "Trypsin", which break the internal peptide bonds in protiens.

• Some enzymes are named according to the source from which they are obtained- "Papain" from Papaya, "Bromelain" from Pineapple and "Ficin" from Ficus.

• An enzyme named "Distase" takes part in the digestion of starch.

• An enzyme named "Lipase" takes part in the digestion of fats.

• The latest method of nomenclature of enzymes, is the "I.U.B. system", proposed by the "I.U.B." (International Union of Biochemistry and Molecular Biology)

• The "I.U.B. system" was proposed in the year 1992.