Enzyme Nomenclature and Classification

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What is enzyme nomenclature?

Enzyme nomenclature is a systematic way of naming enzymes based on the reactions they catalyze.

How are enzymes classified in the Enzyme Commission (EC) numbering system?

Enzymes are classified into six major classes based on the type of reaction they catalyze.

What does the first digit in an Enzyme Commission number indicate?

The first digit represents the major class to which the enzyme belongs.

What type of reactions do hydrolases catalyze?

Hydrolases catalyze reactions that involve the hydrolysis of chemical bonds.

What does the EC number 2.7.1.1 refer to?

EC 2.7.1.1 refers to hexokinase, an enzyme that transfers phosphate groups.

Why is enzyme nomenclature important in scientific research?

It ensures consistent communication and identification of enzymes in research and literature.

What does a lyase enzyme do?

Lyases catalyze the breaking or forming of double bonds by removing or adding groups.

What reaction type is associated with transferases?

Transferases catalyze the transfer of a functional group, such as a methyl or phosphate group.

Define an oxidoreductase enzyme.

Oxidoreductases are enzymes that catalyze oxidation-reduction reactions.

What is the role of ligases in biochemical reactions?

Ligases catalyze the joining of two molecules coupled with the hydrolysis of a diphosphate bond.

What is the significance of systematic names in enzyme nomenclature?

They precisely describe the chemical reaction an enzyme catalyzes, aiding clarity and standardization.

How do the main classes of enzymes in EC classification differ?

They differ based on the general type of chemical reaction they catalyze.

What is an isomerase enzyme?

Isomerases catalyze the rearrangement of atoms within a molecule.

Can you name an enzyme and its function from the ligase class?

DNA ligase is a well-known ligase that joins DNA strands together by forming phosphodiester bonds.

How does enzyme nomenclature assist in biochemical research?

It provides a clear and uniform system for identifying enzymes and their functions.

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