Carbohydrate-active enzymes: sequences, shapes, contortions and cells

Area of Science:

• Biochemistry and Biotechnology
• Enzymology
• Carbohydrate Chemistry

Background:

• Enzyme-catalyzed degradation of oligo- and polysaccharides is crucial in fundamental science, medicine, and biotechnology.
• Carbohydrates are complex biopolymers, and their degradation involves sophisticated enzyme consortia.
• Glycosidic bonds are chemically stable yet enzymatically labile, with glycoside hydrolases achieving significant rate enhancements.

Purpose of the Study:

• To review recent advances in glycoside hydrolase discovery, classification, structure, and reaction mechanisms.
• To highlight the importance of polysaccharide degradation in sustainable energy, food production, and human nutrition.
• To discuss the development of enzyme inhibitors as mechanistic probes and therapeutic agents.

Main Methods:

• Sequence-based classification of glycosidases into families and clans.
• Determination of 3D structures of glycoside hydrolases.
• Kinetic studies and analysis of reaction mechanisms.
• Application of computational techniques alongside structural and kinetic data.

Main Results:

• Significant advances in discovering new glycosidase sequences and understanding their classification.
• Elucidation of sophisticated catalysis mechanisms and 3D structures of glycoside hydrolases.
• New insights into enzymatic catalysis, driving applications in biofuels, nutrition, and medicine.
• Development of enzyme inhibitors for mechanistic studies and therapeutic purposes.

Conclusions:

• Glycoside hydrolase research has progressed significantly, offering new insights into enzymatic catalysis.
• These enzymes play a vital role in sustainable energy, food, and human health.
• The integration of computational methods with experimental data promises an unprecedented understanding of enzyme action.