Characterization of the binding protein-dependent cellobiose and cellotriose transport system of the cellulose degrader Streptomyces reticuli

Article Abstract:

Streptomyces reticuli has an inducible ATP-dependent uptake system specific for cellobiose and cellotriose. Transcription of polycistronic ceb operon for the cellubiose binding protein (CebE), integral membrane protein and intracellular beta-glucosidase mRNAs is induced by cellobiose, whereas the ceb regulatory protein gene is transcribed independently. Immunological experiments showed that CebE is synthesized during growth with cellobiose and that ATP binding protein MsiK is produced in the presence of several sugars at high or moderate levels.

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Production of lactic acid from cellobiose and cellotriose by Lactobacillus delbruckii mutant Uc-3

Article Abstract:

The efficient utilization of cellobiose and cellotriose by a mutant strain, Lactobacillus delbrueckii Uc-3 for L(+) lactic acid production is described. Aryl-[beta]-glucosidase activity was detected for whole cells and disrupting cells suggesting that these activities are cell bound.

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Maltotriose utilization by industrial Saccharomyces strains: Characterization of a new member of the alpha-glucoside transporter family

Article Abstract:

A physiological characterization of process Saccharomyces strains is conducted and new maltotriose transporter genes is observed. A novel member of the alpha-glucoside transporter family with specific biochemical properties is reported.

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