Purine (redirected from Purine biosynthesis)

purine /pu·rine/ (pur´en) a compound, C5H4N4, not found in nature, but variously substituted to produce a group of compounds, purines or purine bases, which include adenine and guanine found in nucleic acids and xanthine and hypoxanthine.

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pu·rine (pyrn)

n.

1. A colorless crystalline organic base that is the parent compound of various biologically important derivatives.

2. Any of a group of organic compounds that are derived from or are structurally related to purine, including uric acid, caffeine, adenine, and guanine.

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Purine

A white crystalline substance that is one of the building blocks of DNA. Uric acid is produced when purine is broken down in the body.

Mentioned in: Gout, Uric Acid Tests

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purine

a heterocyclic compound that is the nucleus of the purine bases (or purines) such as adenine and guanine, which occur in DNA and RNA, and xanthine and hypoxanthine. All living cells contain purines as purine nucleotides. They can be synthesized using amino acids, or by salvage of dietary or endogenous nucleotides derived from cell wastage.

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A purine

adenine.

low purine diet

one with a low content of organ meats, seafood, beans, lentils, peas and spinach; used in the dietary management of xanthine or urate uroliths in dogs.

purine nucleoside phosphorylase

a transferase enzyme that acts in the degradation of nucelotides and nucleic acids.