DNA Methylation and DNA Methyltransferase in Wheat.- The X-Ray Analysis of Ribonuclease Sa.- The Nature of Distribution of Ribonucleotide Reductases.- Cloning, Expression and Nucleotide Sequence of a Gene Encoding a Second Thioredoxin from Corynebacterium nephridii.- Thioredoxin from Streptomyces aureofaciens.- Two-Dimensional 1H-NMR investigation of Ribonuclease T1 and the Complexes of RNase T1 with 2 and 3 Guanosine Monophosphate.- Nucleoside Phosphotransferase and Nuclease S1, two Enzymes with Acylphosphate Intermediates, but Different Mechanisms.- Probing the Mechanism of Enzyme Action through Specific Amino Acid Substitutions.- Site-Specific Restriction Endonuclease Sau BMK I from Streptomyces aureofaciens.- The Effects of N4- and C5-Methylation of Cytosine on DNA Physical Properties and Restriction Endonuclease Action.- Regulation of RNA Synthesis in Yeast: The Stringent Control of Ribosomal RNA Synthesis.- In Vitro Study on Ribosome Degradation in Rat Liver.- Specific Labelling in the Functional Domain of Elongation Factor EF-Tu from Bacillus stearothermophilus and from Bacillus subtilis.- GTP Expense at Codon-Specific Translation and During Misreading.- Site-Directed Mutagenesis of Elongation Factor Tu.- A Site-Mutated rrsD Gene Expression Construct: Impairment of Ribosomal Function.- Expression of Prochymosin cDNA in E. coli.- Control of the Cell Cycle Start by Protein Kinase Genes in Saccharomyces cerevisiae.- Molecular Analysis of Mitochondrial DNA and Cloning of its rDNA Fragments from Tomato Cell Suspension Culture.- Nucleotide Compartmentation During Synthesis of Cytoplasmic rRNA and tRNA as well as Cytoplasmic rRNA and Mitochondrial rRNA in Tomato Cell Suspension Culture.- Intracellular Location of some Purine and PyrimidineMetabolizing Enzymes in Plant Cells.- Some Properties of Dinucleoside Oligophosphate Phosphorylase from Euglena gracilis.- Expression of Genes Coding for Novobiocin Biosynthesis and Novobiocin Resistance in Streptomyces niveusl³¼