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Nucleic Acids, Nucleotides, and Nucleosides > Nucleosides > Ribonucleosides > Guanosine > Nucleoside Q
... > Carbohydrates > Glycosides > Nucleosides > Ribonucleosides > Guanosine > Nucleoside Q
... > Heterocyclic Compounds > Heterocyclic Compounds, Fused-Ring > Heterocyclic Compounds, 2-Ring > Purines > Purine Nucleosides > Guanosine > Nucleoside Q
Nucleic Acids, Nucleotides, and Nucleosides > Nucleosides > Purine Nucleosides > Guanosine > Nucleoside Q
... > Carbohydrates > Glycosides > Nucleosides > Purine Nucleosides > Guanosine > Nucleoside Q

Preferred term

Nucleoside Q  

Type

  • Topical Descriptor

Broader concept

Entry terms

  • Q Nucleoside
  • Q Ribonucleoside
  • Q-Ribonucleoside
  • Queuosine

Note

  • /biosyn /physiol permitted

Scope note

  • A modified nucleoside which is present in the first position of the anticodon of tRNA-tyrosine, tRNA-histidine, tRNA-asparagine and tRNA-aspartic acid of many organisms. It is believed to play a role in the regulatory function of tRNA. Nucleoside Q can be further modified to nucleoside Q*, which has a mannose or galactose moiety linked to position 4 of its cyclopentenediol moiety.

History note

  • 91(80); was see under GUANOSINE 1980-90

In other languages

URI

http://www.yso.fi/onto/mesh/D009704

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