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Enzyme stability in systems with organic solvents. 1998

A K Gladilin, and A V Levashov
School of Chemistry, Lomonosov Moscow State University, Moscow, 119899 Russia. gladilin@enzyme.chem.msu.su

This review deals with enzyme stability in organic solvent systems. Based on the current state of the problem, catalytic activity is chosen as the main tool for testing enzyme stability. Various enzyme properties being regarded as their "stability" at present, a classification of the types of enzyme stability most often discussed in the literature is put forward. Aggregation state of the biocatalytic system formed a basis for the analysis of enzyme stability in organic solvent systems. Regularities of enzyme function in homogeneous solutions in water--organic co-solvent mixtures and suspensions in practically anhydrous solvents are discussed, kinetic data being analyzed in parallel to results of structural studies. Based on the elaborated regularities, up-to-date methods for enzyme stabilization in organic solvent systems are considered.

UI MeSH Term Description Entries
D011487 Protein Conformation The characteristic 3-dimensional shape of a protein, including the secondary, supersecondary (motifs), tertiary (domains) and quaternary structure of the peptide chain. PROTEIN STRUCTURE, QUATERNARY describes the conformation assumed by multimeric proteins (aggregates of more than one polypeptide chain). Conformation, Protein,Conformations, Protein,Protein Conformations
D002384 Catalysis The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction. Catalyses
D004795 Enzyme Stability The extent to which an enzyme retains its structural conformation or its activity when subjected to storage, isolation, and purification or various other physical or chemical manipulations, including proteolytic enzymes and heat. Enzyme Stabilities,Stabilities, Enzyme,Stability, Enzyme
D012997 Solvents Liquids that dissolve other substances (solutes), generally solids, without any change in chemical composition, as, water containing sugar. (Grant & Hackh's Chemical Dictionary, 5th ed) Solvent

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