The labeled nitrogen in ATP and GTP is to be determined. Concept introduction: Purine is a heterocyclic ring, which is composed of a pyrimidine ring fused with an imidazole ring. Adenine and guanine found in DNA and RNA are purines. It is oxidized into uric acid by the action of xanthine oxidase. Further, it is also involved in the formation of certain alkaloids, such as caffeine, and theophylline.

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Chapter 25, Problem 29P

Interpretation Introduction

Interpretation:

The labeled nitrogen in ATP and GTP is to be determined.

Concept introduction:

Purine is a heterocyclic ring, which is composed of a pyrimidine ring fused with an imidazole ring. Adenine and guanine found in DNA and RNA are purines. It is oxidized into uric acid by the action of xanthine oxidase. Further, it is also involved in the formation of certain alkaloids, such as caffeine, and theophylline.

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