This journal provides immediate access to some articles. Volume 68(9); September 1971 Biological Sciences: Biochemistry Kinetics of Sodium Dodecyl Sulfate Solubilization of Mycoplasma laidlawii Plasma Membranes PMCID: PMC389333 Mercurated Dextran Column Chromatography for Fractionating Mononucleotides PMCID: PMC389335 Autoinhibition of Acetylcholine Binding to Torpedo Electroplax; A Possible Molecular Mechanism for Desensitization PMCID: PMC389336 Heterogeneity of Tubulin Subunits PMCID: PMC389344 The Detection of Ionophorous Antibiotic-Cation Complexes in Water with Fluorescent Probes PMCID: PMC389346 The Control of Morphogenesis: An Enzymatic Mechanism for the Initiation of Septum Formation in Yeast PMCID: PMC389349 Mechanism of the Enhancement of the Bohr Effect in Mammalian Hemoglobins by Diphosphoglycerate PMCID: PMC389351 Pantetheine-Linked Peptide Intermediates in Gramicidin S and Tyrocidine Biosynthesis PMCID: PMC389353 Preparation of a “Chemical Vaccine” Against Tumor Progression PMCID: PMC389355 Dihydropteridine Reductase: Implication on the Regulation of Catecholamine Biosynthesis PMCID: PMC389357 Decrease in Liver Aromatic L-Amino-Acid Decarboxylase Produced by Chronic Administration of L-Dopa PMCID: PMC389364 Toluene-Treated Escherichia coli Replicate Only That DNA Which Was About To Be Replicated In Vivo PMCID: PMC389366 Conditions Leading to Enhanced Response to Glucagon, Epinephrine, or Prostaglandins by Adenylate Cyclase of Normal and Malignant Cultured Cells PMCID: PMC389367 Regulation by Calcium of In Vivo Synthesis of 1,25-Dihydroxycholecalciferol and 21,25-Dihydroxycholecalciferol PMCID: PMC389368 Purification of the araC Protein PMCID: PMC389371 Effect of Catecholamines on the Adenosine 3′:5′-Cyclic Monophosphate Concentrations of Clonal Satellite Cells of Neurons PMCID: PMC389376 Cortisone Stimulation of Nucleolar RNA Polymerase Activity PMCID: PMC389379 A Soluble Mitochondrial ATP Synthetase Complex Catalyzing ATP-Phosphate and ATP-ADP Exchange PMCID: PMC389380 Control of λ Repressor Synthesis PMCID: PMC389381 Establishment and Maintenance of Repression by Bacteriophage Lambda: The Role of the cI, cII, and cIII Proteins PMCID: PMC389382 DNA-Directed Cell-Free Synthesis of Biologically Active Transfer RNA: su+III Tyrosyl-tRNA PMCID: PMC389383 Inhibition of the DNA Polymerase of Rauscher Leukemia Virus by Single-Stranded Polyribonucleotides PMCID: PMC389384 Nucleic Acid Polymerases of the Developing Chicken Embryo: A DNA Polymerase Preferring a Hybrid Template PMCID: PMC389386 Transcription of the Polyoma Virus Genome: Synthesis and Cleavage of Giant Late Polyoma-Specific RNA PMCID: PMC389391 Control by Cesium and Intermediates of the Citric Acid Cycle of Extracellular Ribonuclease and Other Enzymes Involved in the Assimilation of Nitrogen PMCID: PMC389393 Requirement for GTP in the Initiation Process on Reticulocyte Ribosomes and Ribosomal Subunits PMCID: PMC389394 A Novel Closed-Circular Mitochondrial DNA with Properties of a Replicating Intermediate PMCID: PMC389395 Adenosine 3′:5′-Cyclic Monophosphate Concentration in the Bacterial Host Regulates the Viral Decision between Lysogeny and Lysis PMCID: PMC389396 Alteration of a 30S Ribosomal Protein Accompanying the ram Mutation in Escherichia coli PMCID: PMC389397 Purification and In Vitro Transcription of a Transfer RNA Gene PMCID: PMC389398 Comparison of the Microtubule Proteins of Neuroblastoma Cells, Brain, and Chlamydomonas Flagella PMCID: PMC389399 The Isolation and Characterization of a Photochemically Active Complex from Chloropseudomonas ethylica PMCID: PMC389400 Sequence Differences of Escherichia coli 30S Ribosomal Proteins as Determined by Immunochemical Methods PMCID: PMC389401 Synthesis and Degradation of Liver Acetyl Coenzyme A Carboxylase in Genetically Obese Mice PMCID: PMC389402 Nucleoside Diphosphokinase Activity Associated with DNA Polymerases PMCID: PMC389404 Protein Synthesis Directed by Encephalomyocarditis Virus RNA: Properties of a Transfer RNA-Dependent System PMCID: PMC389405 Biological Sciences: Botany Natural Hybridization between the Cholla Cactus Species Opuntia spinosior and Opuntia versicolor PMCID: PMC389332 Biological Sciences: Cell Biology Regulation of Protein Synthesis Initiation in HeLa Cells Deprived of Single Essential Amino Acids PMCID: PMC389350 Improved Cryofixation Applicable to Freeze Etching PMCID: PMC389372 Cell Fractionation and Arrangement on Fibers, Beads, and Surfaces PMCID: PMC389373 Serum-Stimulated Release of Cell Contacts and the Initiation of Growth in Contact-Inhibited Chick Fibroblasts PMCID: PMC389375 Changes in Macromolecular Synthesis Associated with the Induction of Glutamine Synthetase in Embryonic Retina PMCID: PMC389406 Biological Sciences: Genetics A Carotenogenic Enzyme Aggregate in Phycomyces: Evidence from Quantitive Complementation PMCID: PMC389339 Pure-Strain and Genetically Mosaic Liver Tumors Histochemically Identified with the β-Glucuronidase Marker in Allophenic Mice PMCID: PMC389345 Control of Plasmid Replication in Escherichia coli: Correlation of the Membrane Site of DNA Replication with the Bacterial Segregation Unit PMCID: PMC389348 Specific Banding Patterns of Human Chromosomes PMCID: PMC389354 Clock Mutants of Drosophila melanogaster PMCID: PMC389363 Induction of Sterility in Drosophila paulistorum: Effect of Cytoplasmic Factors PMCID: PMC389374 Involvement of Threonine Deaminase in Multivalent Repression of the Isoleucine-Valine Pathway in Saccharomyces cerevisiae PMCID: PMC389377 Determination of Blastoderm Cells in Drosophila melanogaster PMCID: PMC389388 Genetic Analysis of Cell Heredity in Imaginal Discs of Drosophila melanogaster PMCID: PMC389389 Biological Sciences: Immunology Localization of Two Additional Hypervariable Regions in Immunoglobulin Heavy Chains PMCID: PMC389341 New Immunoglobulin-like Molecules in the Serum of Bursectomized-Irradiated Chickens PMCID: PMC389356 Modification of Severe Coxsackievirus B3 Infection in Marasmic Mice by Transfer of Immune Lymphoid Cells PMCID: PMC389362 Biological Sciences: Medical Sciences Insulin-Sepharose and the Dynamics of Insulin Action PMCID: PMC389352 Decrease of the 3,4-Dihydroxyphenylalanine (DOPA) Decarboxylase Activities in Human Erythrocytes and Mouse Tissues after Administration of DOPA PMCID: PMC389365 Production of Altered Cell Foci by 3-Methylcholanthrene in Mouse Cells Infected with AKR Leukemia Virus PMCID: PMC389387 Biological Sciences: Microbiology The 3′-Terminal Nucleosides of the High Molecular Weight RNA of C-Type Viruses PMCID: PMC389334 Kinetic Studies on Klebsiella pneumoniae Nitrogenase PMCID: PMC389340 Grouping of RNA Phages Based on the Template Specificity of Their RNA Replicases PMCID: PMC389342 Distinguishing Reverse Transcriptase of an RNA Tumor Virus from Other Known DNA Polymerases PMCID: PMC389385 Biological Sciences: Physiology Hibernation: Alteration of Mitochondrial Membranes as a Requisite for Metabolism at Low Temperature PMCID: PMC389358 Enhanced Release of Dopamine-β-Hydroxylase from Sympathetic Nerves by Calcium and Phenoxybenzamine and Its Reversal by Prostaglandins PMCID: PMC389390 Physical Sciences: Applied Mathematics The Spiral Wave of Our Galaxy Near Inner Lindblad Resonance PMCID: PMC389359 Fluctuations in Nonequilibrium Systems PMCID: PMC389361 Physical Sciences: Applied Physical Sciences Three-dimensional Reconstruction from Radiographs and Electron Micrographs: Application of Convolutions instead of Fourier Transforms PMCID: PMC389392 Physical Sciences: Chemistry Folding of Staphylococcal Nuclease: Magnetic Resonance and Fluorescence Studies of Individual Residues PMCID: PMC389347 Determination of Distance Distribution Functions by Singlet-Singlet Energy Transfer PMCID: PMC389360 Theoretical Analysis of Emission Spectra of Electronic Transitions of Molecules in Dense Media PMCID: PMC389369 The Absolute Configuration of Natural (-)-Stercobilin and Other Urobilinoid Compounds PMCID: PMC389370 pH-Dependent Conformational Changes of Concanavalin A PMCID: PMC389378 Folding of Polypeptide Chains in Proteins: A Proposed Mechanism for Folding PMCID: PMC389403 Absolute Configuration of Cecropia Juvenile Hormone PMCID: PMC389407 Physical Sciences: Mathematics New Integral Representations for Solutions of Cauchy's Problem for Abstract Parabolic Equations PMCID: PMC389343 Physical Sciences: Physics Electron Spin Resonance of an Irradiated Single Crystal of 5-Chlorouridine PMCID: PMC389337 Tunnel Model for Hard-Sphere Bosons in Their Ground State PMCID: PMC389338 Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||