Question 4 of 16

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Thioredoxin is involved in the:

A. conversion of AMP to ATP.

B. conversion of dUMP to dTMP.

C. conversion of a ribonucleotide to a deoxyribonucleotide.

D. inhibition of xanthine oxidase as a treatment for gout.

E. degradation of nucleoprotein.

Comments:

A. Adenylate kinase does this.

B. This is a methylation by thymidylate synthetase.

C. Correct. Thioredoxin fluctuates between the sulfhydryl and disulfide forms.

D. This is allopurinol.

E. A variety of enzymes are involved here, but not thioredoxin.

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Last modified 1/5/95