Table of Contents

• E. Goldwasser
• and C. K.-H. Kung

Purification of Erythropoietin

• James D. Regan,
• R. B. Setlow,
• and R. D. Ley

Normal and Defective Repair of Damaged DNA in Human Cells: A Sensitive Assay Utilizing the Photolysis of Bromodeoxyuridine

• Arnold J. Levine

Induction of Mitochondrial DNA Synthesis in Monkey Cells Infected by Simian Virus 40 and (or) Treated with Calf Serum

• Jobst-Heinrich Klemme
• and Howard Gest

Regulatory Properties of an Inorganic Pyrophosphatase from the Photosynthetic Bacterium Rhodospirillum rubrum

• Jack Erlichman,
• Allen H. Hirsch,
• and Ora M. Rosen

Interconversion of Cyclic Nucleotide-Activated and Cyclic Nucleotide-Independent Forms of a Protein Kinase from Beef Heart

• Ferid Murad,
• Vincent Manganiello,
• and Martha Vaughan

A Simple, Sensitive Protein-binding Assay for Guanosine 3′:5′-Monophosphate

• Peter Duesberg,
• Klaus V. D. Helm,
• and Eli Canaani

Properties of a Soluble DNA Polymerase Isolated from Rous Sarcoma Virus

• Thomas Kornberg
• and Malcolm L. Gefter

Purification and DNA Synthesis in Cell-Free Extracts: Properties of DNA Polymerase II

• Steven Brostoff
• and E. H. Eylar

Localization of Methylated Arginine in the A1 Protein from Myelin

• Suresh S. Tate
• and Alton Meister

Regulation of Rat Liver Glutamine Synthetase: Activation by α-Ketoglutarate and Inhibition by Glycine, Alanine, and Carbamyl Phosphate

• Gordon N. Gill
• and Leonard D. Garren

Role of the Receptor in the Mechanism of Action of Adenosine 3′:5′-Cyclic Monophosphate

• M. F. Holick,
• H. K. Schnoes,
• and H. F. DeLuca

Identification of 1,25-Dihydroxycholecalciferol, a Form of Vitamin D 3 Metabolically Active in the Intestine

• Max H. Schreier
• and Hans Noll

Conformational Changes in Ribosomes during Protein Synthesis

• D. W. Urry

Neutral Sites for Calcium Ion Binding to Elastin and Collagen: A Charge Neutralization Theory for Calcification and Its Relationship to Atherosclerosis

• Sidney R. Kushner,
• Haruko Nagaishi,
• Ann Templin,
• and Alvin J. Clark

Genetic Recombination in Escherichia coli: The Role of Exonuclease I

• Günter Blobel

Release, Identification, and Isolation of Messenger RNA from Mammalian Ribosomes

• Sung Hou Kim,
• Gary Quigley,
• F. L. Suddath,
• and Alexander Rich

High-Resolution X-Ray Diffraction Patterns of Crystalline Transfer RNA That Show Helical Regions

• C. J. Lai
• and B. Weisblum

Altered Methylation of Ribosomal RNA in an Erythromycin-Resistant Strain of Staphylococcus aureus

• Toshio Asakura,
• John S. Leigh, Jr.,
• Henry R. Drott,
• Takashi Yonetani,
• and Britton Chance

Structural Measurements in Hemoproteins: Use of Spin-Labeled Protoheme as a Probe of Heme Environment

• H. D. Niall,
• M. L. Hogan,
• R. Sauer,
• I. Y. Rosenblum,
• and F. C. Greenwood

Sequences of Pituitary and Placental Lactogenic and Growth Hormones: Evolution from a Primordial Peptide by Gene Reduplication

• J. Kettman
• and R. W. Dutton

Radioresistance of the Enhancing Effect of Cells from Carrier-Immunized Mice in an In Vitro Primary Immune Response

• Jonathan S. Friedlaender

Isolation by Distance in Bougainville

• Thomas G. Ebrey

Energy Transfer in Rhodopsin, N -Retinyl-Opsin, and Rod Outer Segments

• David Taylor Moran
• and Francisco Garcia Varela

Microtubules and Sensory Transduction

• Gunter F. Bahr
• and Harvey M. Golomb

Karyotyping of Single Human Chromosomes from Dry Mass Determined by Electron Microscopy

• Robert E. Koch

The Influence of Neighboring Base Pairs upon Base-Pair Substitution Mutation Rates

• R. Press,
• N. Glansdorff,
• P. Miner,
• J. De Vries,
• R. Kadner,
• and W. K. Maas

Isolation of Transducing Particles of ϕ80 Bacteriophage That Carry Different Regions of the Escherichia coli Genome

• D. Von Wettstein

The Synaptinemal Complex and Four-Strand Crossing Over

• Rene I. Jahiel,
• David Taylor,
• Norbert Rainford,
• Stephen E. Hirschberg,
• and Rayna Kroman

Inducers of Interferon Inhibit the Mitotic Response of Liver Cells to Partial Hepatectomy

• J. J. Pisano,
• J. S. Finlayson,
• Marjorie P. Peyton,
• and Yumiko Nagai

ε-(γ-Glutamyl)lysine in Fibrin: Lack of Crosslink Formation in Factor XIII Deficiency

• Alfred G. Knudson, Jr.

Mutation and Cancer: Statistical Study of Retinoblastoma

• M. W. Taylor,
• B. Cordell,
• M. Souhrada,
• and S. Prather

Viruses as an Aid to Cancer Therapy: Regression of Solid and Ascites Tumors in Rodents After Treatment with Bovine Enterovirus

• M. Yoshikawa-Fukada
• and J. D. Ebert

Further Characterization of the Cellular DNA Hybridizing with the RNA of Rous Sarcoma Virus

• Nang-Ly Chow
• and Robert W. Simpson

RNA-Dependent RNA Polymerase Activity Associated with Virions and Subviral Particles of Myxoviruses

• S. H. Lin,
• R. Sahai,
• and H. Eyring

Kinetics of Heterogeneous Chemical Reactions: A Theoretical Model for the Accumulation of Pesticides in Soil

• Shiing-Shen Chern
• and James Simons

Some Cohomology Classes in Principal Fiber Bundles and Their Application to Riemannian Geometry

• F. Brock Fuller

The Writhing Number of a Space Curve

• Neil A. Straus

Comparative DNA Renaturation Kinetics in Amphibians

• Stephen Grossberg

Pavlovian Pattern Learning by Nonlinear Neural Networks

• Paul A. Weiss
• and Robert Mayr

Organelles in Neuroplasmic (“Axonal”) Flow: Neurofilaments

Introduction of a heterologous nucleus into enucleated cytoplasms of cultured mouse L-cells

Posttranscriptional control of tyrosine aminotransferase synthesis by insulin