Pentose Oxidation by Acetic Acid Bacteria Led to a Finding of Membrane-Bound Purine Nucleosidase

Osao ADACHI; Roque A. HOURS; Yoshihiko AKAKABE; Emiko SHINAGAWA; Yoshitaka ANO; Toshiharu YAKUSHI; Kazunobu MATSUSHITA

doi:10.1271/bbb.130066

Microbiology & Fermentation Technology Notes

Pentose Oxidation by Acetic Acid Bacteria Led to a Finding of Membrane-Bound Purine Nucleosidase

Osao ADACHI, Roque A. HOURS, Yoshihiko AKAKABE, Emiko SHINAGAWA, Yoshitaka ANO, Toshiharu YAKUSHI, Kazunobu MATSUSHITA

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Keywords: nucleosidase, purine-ribonucleosidase, purine-2'-deoxyribonucleosidease, D-ribose oxidation, 2-deoxy-D-ribose oxidation

JOURNAL FREE ACCESS

2013 Volume 77 Issue 5 Pages 1131-1133

DOI https://doi.org/10.1271/bbb.130066

View "Advance Publication" version (May 7, 2013).

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Abstract

D-Ribose and 2-deoxy-D-ribose were oxidized to 4-keto-D-ribonate and 2-deoxy-4-keto-D-ribonate respectively by oxidative fermentation, and the chemical structures of the oxidation products were confirmed to be as expected. Both pentoses are important sugar components of nucleic acids. When examined, purine nucleosidase activity predominated in the membrane fraction of acetic acid bacteria. This is perhaps the first finding of membrane-bound purine nucleosidase.

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