Invited Reviews.- Modelling of Enzyme Properties in Organic Solvents.- Lipase-Catalyzed Synthesis of Carboxylic Amides: Nitrogen Nucleophiles as Acyl Acceptor.- Chemoenzymatic Synthesis of Lipidated Peptides.- Chemoenzymatic Transformations in Nucleoside Chemistry.- Contributions.- Lipase-Catalyzed Regio- and Stereoselective Acylation of Hydroxy Groups in Steroid Side Chains.- Comparative Study of Substrate- and Stereospecificity of Penicillin G Amidases from Different Sources and Hybrid Isoenzymes.- Lipase-Catalyzed Resolution of Ibuprofen.- Novel Carboxyl Esterase Preparations for the Resolution of Linalyl Acetate.- Microbial and Enzymatic Synthesis of Optically Pure D- and L-3-Trimethylsilyl-alanine by Deracemization of D,L-5-Trimethylsilyl-methyl-hydantoin.- Immobilization of Rhodococcus AJ270 and Use of Entrapped Biocatalyst for the Production of Acrylic Acid.- Beauveria bassiana ATCC 7159 Contains an L-Specific ¦Á-Amino Acid Benzamidase.- Bacterial Biotransformation of Isoprene and Related Dienes.- Enantioselective Sulfoxidations Catalyzed by Horseradish Peroxidase, Manganese Peroxidase, and Myeloperoxidase.- Synthesis of Optically Active ?-Methyl ß-Hydroperoxy Esters by Diastereoselective Singlet Oxygen Ene Reaction and Horseradish Peroxidase Catalyzed Kinetic Resolution.