Biochemistry : Other Protein Functions

Study concepts, example questions & explanations for Biochemistry

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Example Questions

Example Question #51 : Biochemistry

Which of the following reaction types is not catalyzed by cobalamin enzymes?

Possible Answers:

Reduction of ribonucleotides

Ligation of bonds between DNA bases

All of these are reaction types catalyzed by cobalamins

Intramolecular rearrangements

Methylations

Correct answer:

Ligation of bonds between DNA bases

Explanation:

Cobalamin enzymes are B12-dependent enzymes. This type of enzyme catalyzes methylations, intramolecular rearrangements, and reduction of ribonucleotides. However, it is not associated with the ligation of the hydrogen bonds between DNA bases.

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