D-arabinose is the 2 epimer of D-ribose, i.e. Differs from D-ribose by having the opposite configuration at carbon 2. D-arabinose occurs inter alia in the polysaccharide arabinogalactan, a neutral pectin of the cell wall of plants and in the metabolites cytosine arabinoside and adenine arabinoside.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
(22 Feb 2008)
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