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661 results on '"Spirostans"'

651. Reactions at the 3' terminus of transfer ribonucleic acid. V. Subcellular localization and evidence for a mitochondrial transfer ribonucleic acid nucleotidyltransferase.

Author

Mukerji SK and Deutscher MP

Subjects
Adenosine Triphosphate, Animals, Carbon Isotopes, Cell Nucleus enzymology, Centrifugation, Density Gradient, Cytosine Nucleotides, Digitalis Glycosides, Electrons, Freezing, Hydrogen-Ion Concentration, Liver cytology, Liver drug effects, Liver enzymology, Male, Microsomes, Liver enzymology, RNA, Ribosomal, RNA, Transfer, Rats, Saponins, Spirostans, Subcellular Fractions enzymology, Surface-Active Agents pharmacology, Uracil Nucleotides, Mitochondria, Liver enzymology, RNA Nucleotidyltransferases
Published
1972

653. Reductive amination of branched chain keto acids by glutamate dehydrogenase from several animal sources.

Author

Drotman RB, Featherston WR, and Freedland RA

Subjects
Adenosine Diphosphate, Allosteric Regulation, Amination, Ammonium Sulfate, Animals, Birds, Caproates, Catalysis, Cattle, Chemical Precipitation, Digitalis Glycosides, Enzyme Activation, Guanosine Triphosphate, Ketoglutaric Acids, Kinetics, Oxidation-Reduction, Quail, Rats, Saponins, Solubility, Species Specificity, Spirostans, Structure-Activity Relationship, Valerates, Water, Glutamate Dehydrogenase antagonists & inhibitors, Glutamate Dehydrogenase isolation & purification, Keto Acids, Liver enzymology
Published
1972
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654. Biochemistry of visual pigments. II. Phospholipid requirement and opsin conformation for regeneration of bovine rhodopsin.

Author

Shichi H

Subjects
Animals, Cattle, Circular Dichroism, Digitalis Glycosides, Eye Proteins, Hydrogen-Ion Concentration, Hydroxylamines, Light, Phosphatidylcholines analysis, Phosphatidylethanolamines analysis, Phospholipases, Photoreceptor Cells analysis, Protein Conformation, Radiation Effects, Saponins, Snakes, Spectrophotometry, Spirostans, Time Factors, Ultraviolet Rays, Venoms, Vitamin A, Phospholipids analysis, Retinal Pigments isolation & purification, Retinal Pigments radiation effects
Published
1971

655. The role of L-(methyl- 3 H, 14 C)methionine in the biosynthesis of polyprenoids. I. The incorporation of L-(methyl- 3 H, 14 C)methionine in cholesterol and 5 -cholest-7-en-3 -ol in vivo in the rat.

Author

Lloyd-Jones JG, Heidel P, Yagen B, Doyle PJ, Friedell GH, and Caspi E

Subjects
Animals, Brain metabolism, Carbon Isotopes, Chemical Precipitation, Cholestenes biosynthesis, Chromatography, Chromatography, Gas, Chromatography, Thin Layer, Digitalis Glycosides, Feces analysis, Female, Intestinal Mucosa metabolism, Liver metabolism, Mammary Neoplasms, Experimental metabolism, Mass Spectrometry, Muscles metabolism, Rats, Saponins, Skin metabolism, Spirostans, Sterols blood, Tritium, Cholesterol biosynthesis, Methionine metabolism, Sterols biosynthesis
Published
1972

656. The glucagon-sensitive adenyl cyclase system in plasma membranes of rat liver. VI. Evidence for a role of membrane lipids.

Author

Pohl SL, Krans HM, Kozyreff V, Birnbaumer L, and Rodbell M

Subjects
Adenylyl Cyclases, Animals, Cell Membrane analysis, Chromatography, Chromatography, Thin Layer, Digitalis Glycosides, Enzyme Activation, Fluorides, Iodine Isotopes, Lipids isolation & purification, Liver analysis, Liver cytology, Phospholipases, Protein Binding, Rats, Saponins, Silicon Dioxide, Spirostans, Adenine Nucleotides, Cell Membrane enzymology, Enzymes, Glucagon, Liver enzymology, Nucleotidyltransferases, Phosphatidylcholines, Phosphatidylethanolamines
Published
1971

657. Microfluorometry of glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase in red cells.

Author

Lowe ML, Stella AF, Mosher BS, Gin JB, and Demetriou JA

Subjects
Cold Temperature, Digitalis Glycosides, Drug Stability, Female, Fluorometry instrumentation, Hemoglobins, Hemolysis, Heparin, Humans, Kinetics, Male, Mathematics, Methods, Microchemistry, NADP, Saponins, Sex Factors, Spirostans, Time Factors, Erythrocytes enzymology, Glucosephosphate Dehydrogenase blood, Phosphogluconate Dehydrogenase blood
Published
1972

659. Interaction of leucerne saponins with steroids.

Author

Gestetner B, Assa Y, Henis Y, Tencer Y, Rotman M, Birk Y, and Bondi A

Subjects
Acetates, Biological Assay, Chemical Phenomena, Chemical Precipitation, Chemistry, Cholesterol pharmacology, Chromatography, Gas, Digitalis Glycosides, Drug Stability, Ergosterol pharmacology, Ketones, Mitosporic Fungi drug effects, Mitosporic Fungi growth & development, Spirostans, Structure-Activity Relationship, Plants, Saponins pharmacology, Sterols pharmacology
Published
1972

660. Plastocyanin participation in chloroplast photosystem I.

Author

Baszynski T, Brand J, Krogmann DW, and Crane FL

Subjects
Aniline Compounds metabolism, Ascorbic Acid metabolism, Chloroplasts analysis, Chloroplasts radiation effects, Chromatography, DEAE-Cellulose, Copper analysis, Copper pharmacology, Digitalis Glycosides, Indophenol metabolism, Light, NADP metabolism, NADP radiation effects, Oxidation-Reduction, Oxygen Consumption, Phenols metabolism, Plant Cells, Plant Proteins analysis, Plants metabolism, Plants radiation effects, Pressure, Pyridinium Compounds metabolism, Radiation Effects, Saponins, Spectrophotometry, Spirostans, Subcellular Fractions analysis, Ultracentrifugation, Chloroplasts metabolism, Plant Proteins pharmacology
Published
1971
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661. Induced optical activity of the metarhodopsins.

Author

Waggoner AS and Stryer L

Subjects
Animals, Binding Sites, Cattle, Circular Dichroism, Digitalis Glycosides, Hydrogen-Ion Concentration, Mathematics, Optical Rotation, Photolysis, Photoreceptor Cells, Protein Conformation, Radiation Effects, Saponins, Spectrophotometry, Spirostans, Temperature, Time Factors, Ultraviolet Rays, Vibration, Retinal Pigments radiation effects
Published
1971
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