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Article

Excess production of Bacillus subtilis quercetin 2,3-dioxygenase affects cell viability in the presence of quercetin.

Bioscience, biotechnology, and biochemistry - 1 Jan 2010

Hirooka Kazutake, Fujita Yasutaro

Abstract excerpt

Bacillus subtilis quercetin 2,3-dioxygenase (QdoI) catalyzes the C-ring cleavage of quercetin to yield 2-protocatechuoyl-phloroglucinol carboxylic acid and carbon monoxide. The recombinant QdoI effectively decomposed several flavonols, including quercetin, whereas its activity toward fisetin was low, suggesting that the 5-hydroxyl group at the A-ring is critical for substrate recognition. A B. subtilis mutant...

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Identifiers

PMID: 20460727
DOI: 10.1271/bbb.90928

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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