2013
DOI: 10.1126/science.1244273
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Revealing Nature’s Cellulase Diversity: The Digestion Mechanism of Caldicellulosiruptor bescii CelA

Abstract: Printed with a renewable-source ink on paper containing at least 50% wastepaper, including 10% post consumer waste. Cellulase C. bescii CelA, a highly active and stable enzyme, exhibits a new cellulose digestion paradigm promoting inter-cellulase synergy. C. bescii CelA, a hydrolytic enzyme with multiple functional domains, may have several advantages over other fungal and bacterial cellulases for use in biofuels production: very high specific activity, stability at elevated temperatures , and a novel digestio… Show more

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Cited by 263 publications
(331 citation statements)
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“…argues that the pH used in our study (2) for the enzymatic assays of Cel7A was not within the range of optimal pH values for this enzyme and that the substrate loading data were missing. He provides various references that we believe are hard to interpret, because they do not show curves representing activity versus pH.…”
mentioning
confidence: 96%
“…argues that the pH used in our study (2) for the enzymatic assays of Cel7A was not within the range of optimal pH values for this enzyme and that the substrate loading data were missing. He provides various references that we believe are hard to interpret, because they do not show curves representing activity versus pH.…”
mentioning
confidence: 96%
“…In some cases a multivalent effect has been observed, where single cellulase enzymes contain multiple CBMs to increase association with target substrates (49,50). The presence of multiple CBMs may also be deleterious for enzymatic function depending on the substrate and the enzymatic mechanism, as seen with cellulosomes on pretreated biomass (51).…”
Section: Molecularmentioning
confidence: 99%
“…In many cases, the enzymes used by these organisms are multimodular, consisting of one or more catalytic domains of various function (2)(3)(4)(5)(6)(7)(8) linked to a carbohydrate-binding module (CBM) that targets plant cell wall polysaccharides through specific recognition mechanisms (9). To date, 67 families of CBMs have been discovered (10), and many of these families contain members important in biomass depolymerization.…”
mentioning
confidence: 99%