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. 1972 Mar;109(3):1144–1148. doi: 10.1128/jb.109.3.1144-1148.1972

Ribose Utilization by Veillonella alcalescens

David Kafkewitz a,1, E A Delwiche a
PMCID: PMC247336  PMID: 4334763

Abstract

The utilization of ribose by Veillonella alcalescens has been further investigated. Nonfermentation of ribose is not a result of a phosphorylation lesion since ribose-phosphorylating activity was measured in cell extracts. Resting cells accumulated ribose-5-phosphate and nucleotides when 14C-ribose was provided; no other sugar phosphates were detectable. Resting cells that were shifted to growth conditions polymerized rather than degraded the accumulated ribose compounds. Cell extracts contained a fructose diphosphate phosphatase. Ribose-5-phosphate, glucose-6-phosphate, and fructose-6-phosphate were not hydrolyzed. It is postulated that the nonfermentation of ribose is not due to any metabolic lesions, but is a consequence of metabolic control at the fructose diphosphate level of glycolysis.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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