Deoxy sugar

Comparison of the chemical structures of ribose (top) and deoxyribose (bottom).

Deoxy sugars

• Deoxyribose, or 2-deoxy-D-ribose, a constituent of DNA
• N-linked glycans
• avian influenza virus
  particles
• Rhamnose, or 6-deoxy-L-mannose, present in plant glycosides

In Escherichia coli bacteria, deoxyribose sugars are synthesized via two different pathways - one pathway involves aldol condensation, whereas the other pathway is conversion of a ribose sugar into a deoxyribose sugar by means of changes on the nucleotide or nucleoside level. Deoxyribose is synthesized through the reduction of ribose. Deoxyribose is derived from the same precursor as ribose being that the reduction of the sugar with the extra hydroxyl group results in the deoxy-sugar, which has its hydroxyl group replaced with a hydrogen atom.^[2]

Dideoxy sugars

Some biologically important dideoxy sugars, sugars that have had two

Colitose
(3,6-Dideoxy-L-xylo-hexose)

Abequose
(3,6-Dideoxy-D-xylo-hexose)

See also

• Deoxynucleotide

References