Natural Sulfur Compounds: Novel Biochemical and Structural Aspects

Front Matter....Pages i-xv
Stereochemical Aspects of Transmethylations of Potential Biological Interest....Pages 1-14
Methylase Mechanisms: Steric Constraints and Modes of Catalysis....Pages 15-24
Adenosylmethionine as a Precursor for Nucleic Acids Modification....Pages 25-40
Involvement of S-Adenosylmethionine in Brain Phospholipid Metabolism....Pages 41-54
Effect of S-Adenosyl-L-Methionine and S-Adenosyl-L-Homocysteine Derivatives on Protein Methylation....Pages 55-66
The Role of S-Adenosylhomocysteine and S-Adenosylhomocysteine Hydrolase in the Control of Biological Methylations....Pages 67-80
Homocysteine Biosynthesis in Plants....Pages 81-92
Inhibition of the Synthesis of Glutathione, Glutamine, and Glutamate by Certain Methionine Derivatives....Pages 93-106
Methionine Metabolism in Developing Neural Tissue....Pages 107-119
Antagonists of Folic Acid and Vitamin B 6 in Regulation of S-Adenosylmethionine and S-Adenosylhomocysteine Content in Normal and Malignant Tissues....Pages 121-132
Recent Studies on the Metabolism of 5’-Methylthioadenosine....Pages 133-148
Two Different Modes of Synthesis and Transformation of Cysteine (and Related Amino Acids) by Pyridoxal-P-De- Pendent Lyases....Pages 149-161
Possible Physiological Functions of Taurine in Mammalian Systems....Pages 163-173
Cysteine Dioxygenase of Rat Liver: Some Properties and its Significance on Cysteine Metabolism of Rat....Pages 175-186
Cysteamine Pathway of Taurine Biosynthesis....Pages 187-194
Metabolism of Hypotaurine in Some Organs of the Rat....Pages 195-200
Hypotaurine Oxidation by Mouse Tissues....Pages 201-212
Sulfur Amino Acids in the Reproductive Tract of Male Guinea Pigs, Rats, Mice and Several Marine Animals....Pages 213-224
Hypotaurine in the Reproductive Tract....Pages 225-234
Taurine in Human Nutrition and Development....Pages 235-243
The Effect of Total Parenteral Nutrition on Taurine....Pages 245-252
Taurine and Isethionate in Squid Nerve....Pages 253-263
Taurine Biosynthesis in Ox Retina....Pages 265-276
The Regulation and Function of Taurine in the Heart and Other Organs....Pages 277-293
Effects of Ischemia on Taurine Levels....Pages 295-306
Taurine Effects on Calcium Transport in Nervous Tissue....Pages 307-318
Taurine in Retinas of Taurine Deficient Cats and RCS Rats....Pages 319-329
Thialysine, Thiaisoleucine and Thiaproline as Inhibitors in Protein Synthesizing Systems....Pages 331-344
Lanthionine Decarboxylation by Animal Tissues....Pages 345-352
Sulfur Containing Nuphar Alkaloids....Pages 353-360
Biologically Active 1,2-Dithiolane Derivatives from Mangrove Plants and Related Compounds....Pages 361-374
Biochemical and Clinical Effects of Penicillamine and Other Thiols Used in the Treatment of Rheumatoid Arthritis....Pages 375-380
Cyanoepithioalkanes: Some Chemical and Toxicological Studies....Pages 381-389
Cysteine and Glutathione in Mammalian Pigmentation....Pages 391-397
Sulfur Compounds in Mustelids....Pages 399-406
On the Mechanism of C-S Bonds Formation in the Biosynthesis of Biotin....Pages 407-411
The Biosynthesis of Lipoic Acid in the Rat....Pages 413-422
Some Aspects of the Metabolism of Sulfur-Containing Heterocyclic Cofactors: Lipoic Acid, Biotin, and 8α-(S-L-Cysteinyl)Riboflavin....Pages 423-434
Implication of Essential Fatty Acids in Pyruvate Dehydrogenase Activation....Pages 435-442
Stimulation of Fatty Acid Metabolism by Panteth(e)ine....Pages 443-452
Effects of a Hypolipidemic Drug (Clofibrate) on the Biosynthesis and Degradation of CoA in Rat Liver....Pages 453-461
Clinical Chemistry of Mercaptopyruvate and its Metabolites....Pages 463-470
Spectral Properties of Persulfide Sulfur in Rhodanese....Pages 471-481
Biochemistry Of Thiocystine....Pages 483-491
Subcellular Compartmentation and Biological Functions of Mercaptopyruvate Sulphurtransferase and Rhodanese....Pages 493-503
Semisynthetic Cephalosporins. III. 1 Synthesis and Structure Activity Relationships of Novel Orally Active 7-[4-Hydroxy-3-(Substituted Methyl)phenyl]-Acetamido-3-Cephem-4-Carboxylic Acids....Pages 505-510
Ambiguities in the Enzymology of Sulfur-Containing Compounds....Pages 511-523
Back Matter....Pages 525-552