Table of Contents

• Joseph Jarabak

Human Placental 15-Hydroxyprostaglandin Dehydrogenase

• R. Axel,
• J. Schlom,
• and S. Spiegelman

Evidence for Translation of Viral-Specific RNA in Cells of a Mouse Mammary Carcinoma

• Joan Heller Brown
• and Maynard H. Makman

Stimulation by Dopamine of Adenylate Cyclase in Retinal Homogenates and of Adenosine-3′:5′-Cyclic Monophosphate Formation in Intact Retina

• Peter Schendel,
• Peter Maeba,
• and Gary R. Craven

Identification of the Proteins Associated with Subparticles Produced by Mild Ribonuclease Digestion of 30S Ribosomal Particles from Escherichia coli

• Thierry Boon

Inactivation of Ribosomes In Vitro by Colicin E₃ and Its Mechanism of Action

• William T. Prince,
• Michael J. Berridge,
• and Howard Rasmussen

Role of Calcium and Adenosine-3′:5′-Cyclic Monophosphate in Controlling Fly Salivary Gland Secretion

• Saul Lande,
• Josefa B. Flexner,
• and Louis B. Flexner

Effect of Corticotropin and Desglycinamide⁹-Lysine Vasopressin on Suppression of Memory by Puromycin

• M. A. Baluda

Widespread Presence, in Chickens, of DNA Complementary to the RNA Genome of Avian Leukosis Viruses

• Clive E. Nockolds,
• Robert H. Kretsinger,
• Carole J. Coffee,
• and Ralph A. Bradshaw

Structure of a Calcium-Binding Carp Myogen

• Audrey Stevens

New Small Polypeptides Associated with DNA-Dependent RNA Polymerase of Escherichia coli after Infection with Bacteriophage T4

• Sidney Pestka

Peptidyl-Puromycin Synthesis on Polyribosomes from Escherichia coli

• Raymond F. Novak
• and T. J. Swift

Barbiturate Interaction with Phosphatidylcholine

• Byron Kemper,
• Joel F. Habener,
• John T. Potts, Jr.,
• and Alexander Rich

Proparathyroid Hormone: Identification of a Biosynthetic Precursor to Parathyroid Hormone

• Carlos B. Hirschberg
• and Eugene P. Kennedy

Mechanism of the Enzymatic Synthesis of Cardiolipin in Escherichia coli

• Evan Eisenberg,
• Louis Dobkin,
• and W. Wayne Kielley

Heavy Meromyosin: Evidence for a Refractory State Unable to Bind to Actin in the Presence of ATP

• Peter P. Wong
• and R. H. Burris

Nature of Oxygen Inhibition of Nitrogenase from Azotobacter vinelandii

• Nathan Richman
• and James W. Bodley

Ribosomes Cannot Interact Simultaneously with Elongation Factors EF Tu and EF G

• Ronald G. Crystal
• and W. French Anderson

Initiation of Hemoglobin Synthesis: Comparison of Model Reactions That Use Artificial Templates with Those Using Natural Messenger RNA

• David E. Green
• and Sungchul Ji

Electromechanochemical Model of Mitochondrial Structure and Function

• Bartolomé Cabrer,
• David Vázquez,
• and Juan Modolell

Inhibition by Elongation Factor EF G of Aminoacyl-tRNA Binding to Ribosomes

• Donald L. Robberson,
• Harumi Kasamatsu,
• and Jerome Vinograd

Replication of Mitochondrial DNA. Circular Replicative Intermediates in Mouse L Cells

• V. Ling

Pyrimidine Sequences from the DNA of Bacteriophages fd, fl, and ϕX174

• James R. Gavin III,
• Jesse Roth,
• Phyllis Jen,
• and Pierre Freychet

Insulin Receptors in Human Circulating Cells and Fibroblasts

• David Lee Miller

Elongation Factors EF Tu and EF G Interact at Related Sites on Ribosomes

• A. D. Riggs,
• S. Lin,
• and R. D. Wells

Lac Repressor Binding to Synthetic DNAs of Defined Nucleotide Sequence

• Joseph Schlessinger
• and Izchak Z. Steinberg

Circular Polarization of Fluorescence of Probes Bound to Chymotrypsin. Change in Asymmetric Environment upon Electronic Excitation

• O. H. Griffith,
• G. H. Lesch,
• G. F. Rempfer,
• G. B. Birrell,
• C. A. Burke,
• D. W. Schlosser,
• M. H. Mallon,
• G. B. Lee,
• R. G. Stafford,
• P. C. Jost,
• and T. B. Marriott

Photoelectron Microscopy: A New Approach to Mapping Organic and Biological Surfaces

• Alan F. Horwitz,
• William J. Horsley,
• and Melvin P. Klein

Magnetic Resonance Studies on Membrane and Model Membrane Systems: Proton Magnetic Relaxation Rates in Sonicated Lecithin Dispersions

• Dinshaw J. Patel,
• Clare K. Woodward,
• and Frank A. Bovey

Proton Nuclear Magnetic Resonance Studies of Ribonuclease A in H₂O

• Thomas A. Halgren
• and William N. Lipscomb

Approximations to Self-Consistent Field Molecular Wavefunctions

• Lyman C. Craig
• and Hao-Chia Chen

On a Theory for the Passive Transport of Solute through Semipermeable Membranes

• D. Stanley Tarbell,
• Yutaka Yamamoto,
• and Barry M. Pope

New Method to Prepare N-t-Butoxycarbonyl Derivatives and the Corresponding Sulfur Analogs from di-t-Butyl Dicarbonate or di-t-Butyl Dithiol Dicarbonates and Amino Acids

• David Ring,
• Yecheskel Wolman,
• Nadav Friedmann,
• and Stanley L. Miller

Prebiotic Synthesis of Hydrophobic and Protein Amino Acids

• Robert L. Seecof,
• Raymond L. Teplitz,
• Inés Gerson,
• Kazuo Ikeda,
• and J. James Donady

Differentiation of Neuromuscular Junctions in Cultures of Embryonic Drosophila Cells

• Annette W. Coleman,
• John R. Coleman,
• James D. Griffin,
• Joel K. Weltman,
• and K. M. Chapman

Methylxanthine-Induced Escalation: A Propagated Wave Phenomenon Observed in Skeletal Muscle Developing in Culture

• J. K. S. Jansen
• and J. G. Nicholls

Regeneration and Changes in Synaptic Connections between Individual Nerve Cells in the Central Nervous System of the Leech

• Ernest Glen Wever,
• James G. McCormick,
• Jerry Palin,
• and Sam H. Ridgway

Cochlear Structure in the Dolphin, Lagenorhynchus obliquidens

• Jerry A. Peterson
• and Mary C. Weiss

Expression of Differentiated Functions in Hepatoma Cell Hybrids: Induction of Mouse Albumin Production in Rat Hepatoma-Mouse Fibroblast Hybrids

• Allan Campbell,
• Alice del Campillo-Campbell,
• and Robin Chang

A Mutant of Escherichia coli That Requires High Concentrations of Biotin

• K. J. Isselbacher

Increased Uptake of Amino Acids and 2-Deoxy-D-Glucose by Virus-Transformed Cells in Culture

• Ichiro Yahara
• and Gerald M. Edelman

Restriction of the Mobility of Lymphocyte Immunoglobulin Receptors by Concanavalin A

• Paul A. Weiss

Neuronal Dynamics and Axonal Flow, V. The Semisolid State of the Moving Axonal Column

• Bernard Weisblum
• and Pieter L. De Haseth

Quinacrine, A Chromosome Stain Specific for Deoxyadenylate-Deoxythymidylate-Rich Regions in DNA

• Ajit Kumar
• and Uno Lindberg

Characterization of Messenger Ribonucleoprotein and Messenger RNA from KB Cells

• Margaret Fogel
• and J. W. Hastings

Bioluminescence: Mechanism and Mode of Control of Scintillon Activity

• Harry Rubin

Inhibition of DNA Synthesis in Animal Cells by Ethylene Diamine Tetraacetate, and Its Reversal by Zinc

• James Watson
• and Marilyn Thoman

A Factor That Can be Used to Regulate an In Vitro Primary Immune Response

• Pernilla Lindahl,
• Patricia Leary,
• and Ion Gresser

Enhancement by Interferon of the Specific Cytotoxicity of Sensitized Lymphocytes

• Gary L. Rosenberg,
• Paul A. Farber,
• and Abner Louis Notkins

In Vitro Stimulation of Sensitized Lymphocytes by Herpes Simplex Virus and Vaccinia Virus

• E. H. Eylar,
• S. Brostoff,
• J. Jackson,
• and H. Carter

Allergic Encephalomyelitis in Monkeys Induced by a Peptide from the A1 Protein

• Issac Chavel
• and Harry E. Rauch

Holomorphic Embedding of Complex Curves in Spaces of Constant Holomorphic Curvature

• J. J. Pollock,
• J. M. Ghuysen,
• R. Linder,
• M. R. J. Salton,
• H. R. Perkins,
• M. Nieto,
• M. Leyh-Bouille,
• J. M. Frere,
• and K. Johnson

Transpeptidase Activity of Streptomyces D-Alanyl-D Carboxypeptidases

• Peter Palese
• and Gebhard Koch

Degradation of Single- and Double-Stranded RNA by Frog Virus 3

• Franklin E. Roach,
• Benjamin Carroll,
• Lawrence H. Aller,
• and Leroi Smith

Surface Photometry of Celestial Sources from a Space Vehicle: Introduction and Observational Procedures

• R. E. Byers,
• L. R. Baker,
• H. M. Sell,
• R. C. Herner,
• and D. R. Dilley

Ethylene: A Natural Regulator of Sex Expression of Cucumis melo L

Crystal and Molecular Structure of N,N′-Diethyl-N,N′-Diphenylurea

Regulation of the Nucleolar DNA-Dependent RNA Polymerase by Amino Acids in Ehrlich Ascites Tumor Cells

DNA and Gene Therapy: Transfer of Mouse DNA to Human and Mouse Embryonic Cells by Polyoma Pseudovirions