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This journal provides immediate access to some articles. Volume 69(7); July 1972 Biological Sciences: Biochemistry The Temporal Expression of T2r+ Bacteriophage Genes In Vivo and In Vitro PMCID: PMC426772 Sequential Degradation of Insulin by Rat Liver Homogenates PMCID: PMC426777 β2-Microglobulin—A Free Immunoglobulin Domain PMCID: PMC426781 2′-O-Methylation of Adenosine, Guanosine, Uridine, and Cytidine in RNA of Isolated Rat Liver Nuclei PMCID: PMC426785 On the Role of RNA in Gene Amplification PMCID: PMC426793 An RNA-DNA Complex Intermediate in Ribosomal Gene Amplification PMCID: PMC426794 Selective Inhibition of Nuclear DNA Synthesis by 9-β-D-Arabinofuranosyl Adenine in Rat Cells Transformed by Rous Sarcoma Virus PMCID: PMC426795 Identification of Lactate Dehydrogenase Isoenzymes by Rapid Kinetics PMCID: PMC426797 Characterization and Partial Purification of the Acetylcholine Receptor from Torpedo Electroplax PMCID: PMC426800 DNA Polymerase of Chicken Embryo: Purification and Properties PMCID: PMC426801 In Vitro Synthesis of Enzymes of the Tryptophan Operon of Escherichia coli PMCID: PMC426802 3′:5′-Cyclic Adenosine Monophosphate Phosphodiesterase: Negative Cooperativity PMCID: PMC426803 Polypeptide Chain Initiation in Eukaryotes: Functional Identity of Supernatant Factor from Various Sources PMCID: PMC426804 Purification and Biological Activity of Thymosin, a Hormone of the Thymus Gland PMCID: PMC426805 Properties of the Refolding and Unfolding Reactions of Ribonuclease A PMCID: PMC426807 Deamidation In Vivo of an Asparagine Residue of Rabbit Muscle Aldolase PMCID: PMC426809 Physicochemical Characterization of Mitochondrial DNA from Pea Leaves PMCID: PMC426812 Coupling of a New, Active Morphine Derivative to Sepharose for Affinity Chromatography PMCID: PMC426813 Surface Glycoproteins of Normal and Transformed Cells: A Difference Determined by Sialic Acid and a Growth-Dependent Sialyl Transferase PMCID: PMC426814 Surface Properties of Membrane Systems: Apoprotein of the Folch-Lees Proteolipid from Beef-Brain Myelin PMCID: PMC426816 Increased Susceptibility of Cells Treated with Interferon to the Toxicity of Polyriboinosinic·Polyribocytidylic Acid PMCID: PMC426817 5-Fluoro-2′-Deoxyuridylate: Covalent Complex with Thymidylate Synthetase PMCID: PMC426818 RNA-Linked Nascent DNA Fragments in Escherichia coli PMCID: PMC426820 Characterization by Electron Microscopy of Fused F-Prime Factors in Escherichia coli PMCID: PMC426822 Polyadenylic Acid at the 3′-Terminus of Poliovirus RNA PMCID: PMC426823 Role of DNA and Specific Cytoplasmic Receptors in Glucocorticoid Action PMCID: PMC426826 Ultraviolet Chromophore Transitions in the Rhodopsin Spectrum PMCID: PMC426827 Deletion Mutants of Bacteriophage ϕX174 PMCID: PMC426829 Association of Actinomycin D and Deoxyribodinucleotides as a Model for Binding of the Drug to DNA PMCID: PMC426830 Phenylalanyl-tRNA Synthetase and Isoleucyl-tRNAPhe: A Possible Verification Mechanism for Aminoacyl-tRNA PMCID: PMC426831 Conformation of Lysine Vasopressin: A Comparison with Oxytocin PMCID: PMC426832 Patterns of Simian Virus 40 DNA Transcription after Acute Infection of Permissive and Nonpermissive Cells PMCID: PMC426833 Relaxation Study of Complex Formation between Monovalent Cations and Cyclic Polyethers PMCID: PMC426836 Electron Microscope Studies of Heteroduplex DNA from a Deletion Mutant of Bacteriophage ϕX-174 PMCID: PMC426838 Calcium-like Action of Phenethylbiguanide and Related Compounds: Inhibition of Pyruvate Kinase PMCID: PMC426840 Purification and Properties of Biologically Active Messenger RNA for a Myeloma Light Chain PMCID: PMC426842 Complex Lipid Requirements for Detergent-Solubilized Phosphoacetylmuramyl-Pentapeptide Translocase from Micrococcus luteus PMCID: PMC426843 Synthesis, Acetylation, and Phosphorylation of Histone IV and Its Binding to DNA During Spermatogenesis in Trout PMCID: PMC426844 Biological Sciences: Cell Biology Proventriculus of a Marine Annelid: Muscle Preparation with the Longest Recorded Sarcomere PMCID: PMC426774 Control of 25-Hydroxycholecalciferol Metabolism by Parathyroid Glands PMCID: PMC426775 Effect of Norepinephrine on Glucose Metabolism in Glioblastoma and Neuroblastoma Cells in Cell Culture PMCID: PMC426776 Excretion of Deoxyribonucleic Acid by Lymphocytes Stimulated with Phytohemagglutinin or Antigen PMCID: PMC426778 Is Prolactin Mitogenic for Mammary Epithelium? PMCID: PMC426780 An Engineering Study of the Peristaltic Drive of Axonal Flow PMCID: PMC426789 Solid-Phase Conjugation of Ferritin to Fab-Fragments of Immunoglobulin G for Use in Antigen Localization on Thin Sections PMCID: PMC426799 Initiation Factor IF-3-Dependent Binding of Escherichia coli Ribosomes and N-Formylmethionine Transfer-RNA to Rabbit Globin Messenger PMCID: PMC426815 Carbamoyl Phosphate Compartmentation in Neurospora: Histochemical Localization of Aspartate and Ornithine Transcarbamoylases PMCID: PMC426821 Cell Cycle Changes and the Ability of Cells to Undergo Virus-Induced Fusion PMCID: PMC426834 Membrane Dynamics in the Action of Dibutyryl Adenosine 3′:5′-Cyclic Monophosphate and Testosterone on Mammalian Cells PMCID: PMC426837 Effect of Environmental pH on the Efficiency of Cellular Hybridization PMCID: PMC426839 Temporal Pattern of Neurogenesis in Spinal Cord: Cytoarchitecture and Directed Growth of Axons PMCID: PMC426841 Biological Sciences: Genetics Transcription in Yeast: Separation and Properties of Multiple RNA Polymerases PMCID: PMC426782 Quantitative Abnormalities of Allotypic Genes in Families with Primary Immune Deficiencies PMCID: PMC426791 Patterns of Genetic Differentiation in the Slender Wild Oat Species Avena barbata PMCID: PMC426810 Biological Sciences: Immunology Expression of Fetal Antigens in Tumor Cells PMCID: PMC426773 Induction of Immunological Tolerance to Soluble Histocompatibility-2 Antigens of Mice PMCID: PMC426819 Demonstration That Antigen-Binding Cells Are Precursors of Antibody-Producing Cells After Purification with a Fluorescence-Activated Cell Sorter PMCID: PMC426835 Biological Sciences: Medical Sciences The Binding of [3H]Thyrotropin and an 3H-Labeled Exophthalmogenic Factor by Plasma Membranes of Retro-orbital Tissue PMCID: PMC426784 Sanfilippo Syndrome: Profound Deficiency of Alpha-Acetylglucosaminidase Activity in Organs and Skin Fibroblasts from Type-B Patients PMCID: PMC426786 Viral-Related RNA in Hodgkins' Disease and Other Human Lymphomas PMCID: PMC426788 Diphenylhydantoin Inhibition of Sodium Conductance in Squid Giant Axon PMCID: PMC426796 Heart Attacks: Possible Risk Factor PMCID: PMC426808 Dopamine-β-Hydroxylase Activity in Mouse Neuroblastoma Tumors and in Cell Cultures PMCID: PMC426824 Biological Sciences: Microbiology Radioimmunoassay of Mammalian Type-C Viral Proteins: Interspecies Antigenic Reactivities of the Major Internal Polypeptide PMCID: PMC426798 Activating and Protective Capacities of a Purified Electrophoretic Fraction of Murine Leukemia Virus for Murine Leukemia Virus Infectivity PMCID: PMC426828 Biological Sciences: Physiology On the Theory of Ion Transport Across the Nerve Membrane, VI. Free Energy and Activation Free Energies of Conformational Change PMCID: PMC426787 Biosynthesis of Acetylcholine in Turtle Photoreceptors PMCID: PMC426847 Biological Sciences: Psychology Protein Changes in Different Brain Areas as a Function of Intermittent Training PMCID: PMC426845 Physical Sciences: Chemistry Physical Adsorption of the Quantum Gas PMCID: PMC426779 Functional Nonequivalence of α and β Hemes in Human Adult Hemoglobin PMCID: PMC426783 Experimental Evidence of an X-Ray Laser PMCID: PMC426792 Natural-Abundance Carbon-13 Fourier-Transform Nuclear Magnetic Resonance Spectra and Spin Lattice Relaxation Times of Unfractionated Yeast Transfer-RNA PMCID: PMC426806 Conformational Interconversions of the Cyclic Hexapeptide Cyclo(Pro-Gly)3 PMCID: PMC426811 Observation of Cooperative Ionizations in Hemoglobin PMCID: PMC426825 A Novel Mechanism for the NIH-Shift PMCID: PMC426846 Physical Sciences: Mathematics ω-Theorems for Riemann's Zeta-Function at Harmonic Combinations of Points PMCID: PMC426771 Bifurcation Theory and the Type Numbers of Marston Morse PMCID: PMC426790 Corrections Protein synthesis in simian virus 40-infected monkey cells PMCID: PMC426848 Corrects: Protein Synthesis in Simian Virus 40-Infected Monkey Cells. Proc Natl Acad Sci U S A. 1972 April; 69(4): 921–924. Mechanism of cooperative oxygen binding to hemoglobin PMCID: PMC426849 Corrects: Mechanism of Cooperative Oxygen Binding to Hemoglobin. Proc Natl Acad Sci U S A. 1972 February; 69(2): 335–339. Journal Matter Original table of contents page Administrative content — journal masthead, notices, indexes, etc. | ||