PrefaceAcknowledgementsThe Fourth Arne Tiselius Memorial LectureCarcinofetal ProteinsSection A. Proteinase InhibitorsA1. Proteinase Inhibitor Interaction A1.1. Molecular Aspects and Quantitation Chemical Studies on Proteinase Inhibition Mechanism and Structure of Human Alpha-1-Proteinase Inhibitor Inhibition of Urokinase by Purified Human a1-Antitrypsin Interaction Between Alpha1-Antitrypsin and Alpha2-Macroglobulin in the Elimination of Proteolytic Enzymes Some Properties of a Complex Between a2-Macroglobulin and Brinase Kunitz Bovine Trypsin Inhibitor: Interaction with a-Chymotrypsin Kinetics of the Interaction of Virgin and Modified Bovine Trypsin Kallikrein Inhibitor (Kunitz) with ß-Trypsin Interaction of Proteinase Inhibitors with Blastocyst Proteinases involved in Implantation Blocking of C1 Esterase Inhibitor by Cold Promoted Activation of Factor VII Direct Identification of Specific Protease Inhibitors in Mixtures by Modified Quantitative Immunoelectrophoresis Studies on the Inhibition of Renin by Radioimmunoassay A1.2. Kinetics and Thermodynamics Thermodynamics and Kinetics of the Interaction of Trypsin with Trypsin Inhibitors The Inhibition of Human and Bovine Trypsins and Chymotrypsins by the Inter-a-Inhibitor from Human Plasma Kinetic and Thermodynamic Studies of Human Alpha-1-Proteinase InhibitorA2. Structure and Function of Human Proteinase Inhibitors A2.1. In Plasma Structure of a1-Antitrypsins a-1-Proteinase Inhibitor Deficiency Disease: A Probable Inborn Error of Carbohydrate Side Chain Synthesis New Data Concerning Inter-Alpha-Trypsin-Inhibitor The Role of Sialic Acid in Hepatic Uptake of Alpha1-Antitrypsin Preparative Separation of Various Bands of Alpha-1-Antitrypsin by Electrofocusing in Thin-layer Polyacrylamide Gel Circular Dichroism Studies on a-1-Proteinase Inhibitor Subunit Structure of Human Alpha-2-Macroglobulin. Its Relationships with its Biological Activity Comparative Study of Rat c^-Macroglobulin and Rat a2-Macroglobulin: Interaction with Trypsin and Chymotrypsin Primary Structure of Hirudin, A Thrombin-Specific Inhibitor The Partial Purification and Characterization of Inter-a-Antiplasmin from Human Serum A Low Molecular Weight Elastase Inhibitor from Human Serum A2.2. In the Reproductory System Acid-stable Proteinase Inhibitors from Human Seminal Plasma: Purification and Characterization Proteinase Inhibitors in Testicular and Epididymal Fluid An Acid-stable Proteinase Inhibitor in Human Cervical Mucus A2.3. In Pancreatic Tissue Human Pancreatic Secretory Trypsin Inhibitor, Amino Acid Sequence 1H NMR Studies of the Dynamics of the Solution Conformation of the Basic Pancreatic Trypsin Inhibitor (BPTI) The Effect of Trypsin-Inhibitors on the Rat Exocrine Pancreas Comparative 1H NMR Studies of the Solution Conformation of the Cow Colostrum Trypsin Inhibitor (CTI), The Trypsin Inhibitor of Helix Pomatia (HPI) and the Basic Pancreatic Trypsin Inhibitor (BPTI) Isolation and Properties of an Aortic Elastase Measurement of the Proteinase Inhibitors of the Bovine Pancreas by Radio-Immunoassay A2.4. In Other Tissues Tissue Inhibitors are Cell Growth Regulators The Possible Role of Protease Inhibitors in Cartilage Metabolism The Isolation, Purification and Partial Characterization of Proteinase Inhibitors from Bovine Cartilage and Aorta Characterization of Proteinase-Inhibitor Complexes in the Purulent Secretions of Mucous Membranes as Complexes Between Leucocytic Elastase and Proteinase InhibitorsA3.