Sulfur in Proteins

Participants

Introduction

I. Protein Reactions Involving Sulfur

I.1. Chemical Modification of Thiol and Disulfide Groups in Proteins and Peptides

I.2. The Introduction of New Sulfhydryl Groups and Disulfide Bonds into Proteins

I.3. Disulfide Bonds in Proteins

I.4. The Varying Reactivity of the Cystine of Wool

I.5. A High-Sulfur Protein from Wool

I.6. The Decomposition of Keratin by Microorganisms

I.7. The Supercontraction of Keratin Fibers by Lithium Bromide

II. Serum Proteins

II.1. Some Chemical Properties of the Sulfhydryl Group in Bovine Plasma Albumin

II.2. Relative Probabilities of Isomers in Cystine-Containing Randomly Coiled Polypeptides

II.3. Biogenesis of Protein Fibers: The Clotting of Blood Plasma

III. Iron and Copper Proteins

III.1. The Role of Sulfur in Some Metal-Proteins

III.2. The Role of Sulfur in Cytochrome c

III.3. The Cystine/Cysteine Content of Hemoglobins

III.4. Sulfhydryl Groups and the Oxygenation of Hemoglobin

III.5. Relation of Iron to Sulfhydryl Groups in Ferritin

IV. Enzymes

IV.1. Some Aspects of Protein Structure in Relation to the Role of —SH and —S—S— Groups in Enzymic Catalysis

IV.2. Mechanism of Action of Alcohol Dehydrogenases from Yeast and Liver and β-Galactosidase of E. coli

IV.3. Determination and Properties of Sulfhydryl Groups in Yeast Alcohol Dehydrogenase

IV.4. Fluorometric Analysis of Coenzyme Binding and Thiol Interactions on Glyceraldehyde-3-phosphate and Lactic Dehydrogenases

IV.5. On the Order of Disulfide Bond Reduction in Ribonuclease

V. Muscle Proteins

V.l. Cysteine and Cystine Content of Muscle Protein Fractions

V.2. The Role of SH Groups in the Interaction of Myosin with Phosphate Compounds and with Actin

V.3. Studies on the Functional Sulfhydryl Groups of Myosin and Actin

VI. Viruses

VI.l. The Masked —SH Group in Tobacco Mosaic Virus Protein

VI.2. Structure and Function in T2 Bacteriophage

VII. Cell Division

VII.1. The Role of Thiol Groups in the Structure and Function of the Mitotic Apparatus

VII.2. Multiple Functions of Sulfur in Mitosis

VII.3. Function of Protein Disulfide Reductase in Cellular Division of Yeasts

VIII.Summary

Author Index

Subject Index