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Carbohydrate active enzymes (CAZYmes) that target recalcitrant polysaccharides are modular enzymes containing noncatalytic carbohydrate-binding modules (CBMs) that direct enzymes to their cognate substrate, thus potentiating catalysis. The structure ...
Carbohydrate active enzymes (CAZYmes) that target recalcitrant polysaccharides are modular enzymes containing noncatalytic carbohydrate-binding modules (CBMs) that direct enzymes to their cognate substrate, thus potentiating catalysis. The structure of Bacillus halodurans endo-beta-1,4-glucanase B (Cel5B) reveals that CBM46 is tightly associated with the catalytic module and, dependent on the glucan presented to the enzyme, can contribute directly to substrate binding or play a targeting role in directing the enzyme to regions of the plant cell wall rich in the polysaccharide hydrolyzed by the enzyme. The CBM46 domain displays a classic beta-sandwich jelly roll fold. Against beta-1,3-1,4-glucans CBM46 domain participates in productive substrate binding and thus plays a direct role in the hydrolytic activity of the enzyme [1].
This domain binds to cellulose and to bacterial cell walls. It is found in glycosyl hydrolases and in scaffolding proteins of cellulosomes (multiprotein glycosyl hydrolase complexes). In the cellulosome it may aid cellulose degradation by anchoring t ...
This domain binds to cellulose and to bacterial cell walls. It is found in glycosyl hydrolases and in scaffolding proteins of cellulosomes (multiprotein glycosyl hydrolase complexes). In the cellulosome it may aid cellulose degradation by anchoring the cellulosome to the bacterial cell wall and by binding it to its substrate [1]. This domain has an Ig-like fold [2].