The celA gene, encoding a glycosyl hydrolase family 3 beta-glucosidase in Azospirillum irakense, is required for optimal growth on cellobiosides |
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| Authors: | Faure D Henrissat B Ptacek D Bekri M A Vanderleyden J |
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| Affiliation: | F. A. Janssens Laboratory of Genetics, Katholieke Universiteit Leuven, K. Mercierlaan 92, B-3001 Heverlee, Belgium. |
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| Abstract: | The CelA beta-glucosidase of Azospirillum irakense, belonging to glycosyl hydrolase family 3 (GHF3), preferentially hydrolyzes cellobiose and releases glucose units from the C(3), C(4), and C(5) oligosaccharides. The growth of a DeltacelA mutant on these cellobiosides was affected. In A. irakense, the GHF3 beta-glucosidases appear to be functional alternatives for the GHF1 beta-glucosidases in the assimilation of beta-glucosides by other bacteria. |
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