Results 191 to 200 of about 33,512 (245)

Structural insights into curdlan degradation via a glycoside hydrolase containing a disruptive carbohydrate-binding module. [PDF]

open access: yesBiotechnol Biofuels Bioprod
Lv T   +8 more
europepmc   +1 more source

Glycoside hydrolases: Catalytic base/nucleophile diversity

Biotechnology and Bioengineering, 2010
AbstractRecent studies have shown that a number of glycoside hydrolase families do not follow the classical catalytic mechanisms, as they lack a typical catalytic base/nucleophile. A variety of mechanisms are used to replace this function, including substrate‐assisted catalysis, a network of several residues, and the use of non‐carboxylate residues or ...
Thu V, Vuong, David B, Wilson
openaire   +2 more sources

Twisting of glycosidic bonds by hydrolases

Carbohydrate Research, 2009
Patterns of scissile bond twisting have been found in crystal structures of glycoside hydrolases (GHs) that are complexed with substrates and inhibitors. To estimate the increased potential energy in the substrates that results from this twisting, we have plotted torsion angles for the scissile bonds on hybrid Quantum Mechanics::Molecular Mechanics ...
Johnson, Glenn   +3 more
openaire   +3 more sources

Glycosyltransferases, glycoside hydrolases: surprise, surprise!

Current Opinion in Structural Biology, 2008
Several in the field-and many outside-consider that solving the three-dimensional structures of more glycoside hydrolases (GHs) and glycosyltransferases (GTs) confines to stamp collection and some even think that there is no main revelation to expect in this area. It is wrong! The past year has come as a refreshing wake-up call with major surprises for
Henrissat, Bernard   +2 more
openaire   +4 more sources

Hierarchical classification of glycoside hydrolases

Biochemistry (Moscow), 2011
This review deals with structural and functional features of glycoside hydrolases, a widespread group of enzymes present in almost all living organisms. Their catalytic domains are grouped into 120 amino acid sequence-based families in the international classification of the carbohydrate-active enzymes (CAZy database).
openaire   +2 more sources

Family 4 glycoside hydrolases are special: The first β-elimination mechanism amongst glycoside hydrolases

Biocatalysis and Biotransformation, 2006
The glycoside hydrolases are a large group of enzymes that can be grouped into two major mechanistic classes based upon the stereochemical outcome of catalysis: retention and inversion of sugar anomeric configuration. Both mechanisms involve nucleophilic displacement at the anomeric center, and both proceed via positively charged oxocarbenium ion-like ...
Vivian L Y. Yip, Stephen G. Withers
openaire   +1 more source

Strategies for tailoring pH performances of glycoside hydrolases

Critical Reviews in Biotechnology, 2021
Glycoside hydrolases (GHs) exhibit high activity and stability under harsh conditions, such as high temperatures and extreme pHs, given their wide use in industrial biotechnology. However, strategies for improving the acidophilic and alkalophilic adaptations of GHs are poorly summarized due to the complexity of the mechanisms of these adaptations. This
Shu-Fang, Li   +3 more
openaire   +2 more sources

Bioprospecting Metagenomics for New Glycoside Hydrolases

2012
To efficiently deconstruct recalcitrant plant biomass to fermentable sugars in industrial processes, biocatalysts of higher performance and lower cost are required. The genetic diversity found in the metagenomes of natural microbial biomass decay communities may harbor such enzymes.
Jack, Gilbert   +5 more
openaire   +2 more sources

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