ribulosen.
/ˈrʌɪbjʊləʊz/, /ˈrʌɪbjʊləʊs/, U.S. /ˈraɪbjəˌloʊz/, /ˈraɪbjəˌloʊs/ Biochemistry.
A ketopentose sugar which, in the form of phosphate esters, is an important intermediate in carbohydrate metabolism and photosynthesis. Frequently attributive in names of compounds.
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ribulose1936
1936 Jrnl. Biol. Chem. 115 731 The formation of d- and l- ribulose from d- and l-arabinose respectively has been demonstrated.
1959 A. White et al. Princ. Biochem. (ed. 2) xviii. 417 Were all the 3-phosphoglyceric acid converted to hexose by reversal of glycolysis,..no ribulose diphosphate would be available to serve as acceptor for CO2 in subsequent fixation reactions.
1976 Nature 27 May 344/2 It is easy to formulate schemes for the synthesis of 2′-amino-2′-deoxyribose from ribose or ribulose and ammonia..but we have been unable to obtain appreciable yields of the amino sugars in this way.
2007 New Scientist 11 Aug. 39/1 RuBisCo ‘fixes’ CO2 by attaching it to a sugar called ribulose bisphosphate.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).
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n.1936