Abstract
Branhamella catarrhalis can be distinguished from Neisseria spp. by the presence of butyrate esterase. This enzyme can be rapidly detected when 4-methylumbelliferyl butyrate is used as the substrate. All B. catarrhalis strains tested gave a positive fluorescence reaction within 5 min, while Neisseria spp. remained negative, even after 18 h of incubation.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Carboxylic Ester Hydrolases / analysis*
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Hymecromone* / analogs & derivatives*
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Moraxella catarrhalis / enzymology
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Moraxella catarrhalis / isolation & purification*
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Neisseria / enzymology
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Umbelliferones*
Substances
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Umbelliferones
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4-methylumbelliferyl butyrate
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Hymecromone
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Carboxylic Ester Hydrolases
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butyrylesterase