xanthine - significado y definición. Qué es xanthine
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Qué (quién) es xanthine - definición

CHEMICAL COMPOUND
Methylxanthine; Xanthines; 1H-purine-2,6-diol; Methylxanthines; Methylxantine; Xanthic oxide; Ciodopurine; 2,6-dioxypurine; 2,6-dioxy purine
  • Xanthine: R<sub>1</sub> = R<sub>2</sub> = R<sub>3</sub> = H<br>Caffeine: R<sub>1</sub> = R<sub>2</sub> = R<sub>3</sub> = CH<sub>3</sub><br>Theobromine: R<sub>1</sub> = H, R<sub>2</sub> = R<sub>3</sub> = CH<sub>3</sub><br>Theophylline: R<sub>1</sub> = R<sub>2</sub> = CH<sub>3</sub>, R<sub>3</sub> = H

Xanthine         
·add. ·- ·Alt. of Xanthin.
xanthine         
['zan?i:n]
¦ noun Biochemistry a crystalline compound formed in the metabolic breakdown of nucleic acids and related to caffeine and other alkaloids.
Origin
C19: from xanthic (from Gk xanthos 'yellow') + -ine4.
xanthic oxide         
Uric oxide, xanthin (e).

Wikipedia

Xanthine

Xanthine ( or , from Ancient Greek ξανθός xanthós "yellow" due to its yellowish-white appearance; archaically xanthic acid; systematic name 3,7-dihydropurine-2,6-dione) is a purine base found in most human body tissues and fluids, as well as in other organisms. Several stimulants are derived from xanthine, including caffeine, theophylline, and theobromine.

Xanthine is a product on the pathway of purine degradation.

  • It is created from guanine by guanine deaminase.
  • It is created from hypoxanthine by xanthine oxidoreductase.
  • It is also created from xanthosine by purine nucleoside phosphorylase.

Xanthine is subsequently converted to uric acid by the action of the xanthine oxidase enzyme.