different between nucleoside vs xanthosine

English

Noun

nucleoside (plural nucleosides)

1. (biochemistry) an organic molecule in which a nitrogenous heterocyclic base (or nucleobase), which can be either a double-ringed purine or a single-ringed pyrimidine, is covalently attached to a five-carbon pentose sugar (deoxyribose in DNA or ribose in RNA). When the phosphate group is covalently attached to the pentose sugar, it forms a nucleotide.

Hyponyms

• adenosine
• guanosine
• cytidine
• thymidine
• uridine

Meronyms

• nucleobase

Derived terms

• C-nucleoside
• deoxynucleoside
• nucleosidase

Translations

See also

• DNA
• nucleobase
• nucleotide
• RNA

Italian

Pronunciation

• IPA^(key): /nu.kle.o?zi.de/
• Rhymes: -ide

Noun

nucleoside m (plural nucleosidi)

1. (biochemistry) nucleoside

English

Noun

xanthosine (usually uncountable, plural xanthosines)

1. (organic chemistry) A nucleoside derived from xanthine and ribose.
   • 2010, Bertil B. Fredholm, Methylxanthines

     Xanthosine, the initial substrate of purine alkaloid synthesis, is supplied by at least four different pathways […]