Table of Contents A Selection of Papers from Volume 31. Carboxypeptidase-A/Monoclonal Antibody Conjugate, F M Huennekens et al. Thymidylate Synthase Inhibitors, A L Jackman et al. Platinum Coordination Complexes Which Circumvent Cisplatin Resistance, K R Harrap et al. Regulation of De Novo and Salvage Pathways in Chemotherapy, G Weber et al. Inhibition of L1210 Cell Growth by 3,4-Dihydroxybenzohydroxamic Acid and 3,4-Dihydroxybenzamidoxime, J G Cory et al. Inhibition of Human Immunodeficiency Virus, B Wahren et al. Signal Transduction in Mammals and Yeast, P J Roach et al. A Prediction of the Structure of the Catalytic Domain of Protein Kinases, S A Benner et al. Regulation of Gene Expression by Insulin, J G Castano. Metabolic-Control Logic and its Significance in Tumor Cells, E Newsholme et al. Control of Hepatic Tyrosine Aminotransferase, E Hofmann et al. Alternative Splicing for the Generation of Protein Diversity, B Nadal-Ginard et al. Family of Signal Transducing Protein Kinases, S Ohno et al. 2,3,7,8-Tetrachlorodibenzo-P-Dioxin Induces Cytochrome P4501A1 Enzyme Activity by Activating Transcription of the Corresponding Gene, J P Whitlock et al. Glutathione Transferase P During Hepatocarcinogenesis of the Rat, M Muramatsu et al. Enhanced Expression of the Cellular Oncogene MYCN and Progression of Human Neuroblastoma, M Schwab. Translational Regulation of the Expression of the l(2)gl Tumor Suppressor Gene, B M Mechler et al. Heterologous Expression of the Cytochromes P450, R W Estabrook et al. Properties of Purineand Pyrimidine Analogs, G H Hitchings.