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Volume 71(3);  March 1974
The cover of the journal
Biological Sciences: Biochemistry
Isolation of a Peptidyl-Pantetheine-Protein from Tyrocidine-Synthesizing Polyenzymes
Sung G. Lee and Fritz Lipmann
Proc Natl Acad Sci U S A. 1974 March; 71(3): 607–611.
PMCID: PMC388060
Siroheme: A New Prosthetic Group Participating in Six-Electron Reduction Reactions Catalyzed by Both Sulfite and Nitrite Reductases
Matthew J. Murphy, Lewis M. Siegel, Shirley R. Tove, and Henry Kamin
Proc Natl Acad Sci U S A. 1974 March; 71(3): 612–616.
PMCID: PMC388061
Gene Activation in Eukaryotes: Are Nuclear Acidic Proteins the Cause or the Effect?
Thoru Pederson
Proc Natl Acad Sci U S A. 1974 March; 71(3): 617–621.
PMCID: PMC388062
Reconstitution of a Calcium Pump Using Defined Membrane Components
G. B. Warren, Penelope A. Toon, N. J. M. Birdsall, A. G. Lee, and J. C. Metcalfe
Proc Natl Acad Sci U S A. 1974 March; 71(3): 622–626.
PMCID: PMC388063
Coordinate Inhibition of Elongation Factor G Function and Ribosomal Subunit Association by Antibodies to Several Ribosomal Proteins
Joseph H. Highland, Erika Ochsner, Julian Gordon, James W. Bodley, Renate Hasenbank, and Georg Stöffler
Proc Natl Acad Sci U S A. 1974 March; 71(3): 627–630.
PMCID: PMC388064
In Vitro Activation of the Transcription of araBAD Operon by araC Activator
Nancy Lee, Gary Wilcox, William Gielow, John Arnold, Paul Cleary, and Ellis Englesberg
Proc Natl Acad Sci U S A. 1974 March; 71(3): 634–638.
PMCID: PMC388066
The N-Terminal Amino-Acid Sequence of Bovine Proparathyroid Hormone
James W. Hamilton, Hugh D. Niall, John W. Jacobs, Henry T. Keutmann, John T. Potts, Jr., and David V. Cohn
Proc Natl Acad Sci U S A. 1974 March; 71(3): 653–656.
PMCID: PMC388070
Mechanism of IgM Polymerization
Rose Marie Chapuis and Marian Elliott Koshland
Proc Natl Acad Sci U S A. 1974 March; 71(3): 657–661.
PMCID: PMC388071
Myosin Heavy Chain Messenger RNA from Myogenic Cell Cultures
Alan Przybyla and R. C. Strohman
Proc Natl Acad Sci U S A. 1974 March; 71(3): 662–666.
PMCID: PMC388072
Translational Reinitiation: Reinitiation of lac Repressor Fragments at Three Internal Sites Early in the lac i gene of Escherichia coli
James G. Files, Klaus Weber, and Jeffrey H. Miller
Proc Natl Acad Sci U S A. 1974 March; 71(3): 667–670.
PMCID: PMC388073
DNA Repair in Escherichia coli Mutants Deficient in DNA Polymerases I, II, and/or III
Robert C. Tait, Andrew L. Harris, and Douglas W. Smith
Proc Natl Acad Sci U S A. 1974 March; 71(3): 675–679.
PMCID: PMC388075
In Vivo Repair of the Single-Strand Interruptions Contained in Bacteriophage T5 DNA
Ronald C. Herman and Richard W. Moyer
Proc Natl Acad Sci U S A. 1974 March; 71(3): 680–684.
PMCID: PMC388076
Chromosome Cycles Turned on in Unfertilized Sea Urchin Eggs Exposed to NH4OH
Daniel Mazia
Proc Natl Acad Sci U S A. 1974 March; 71(3): 690–693.
PMCID: PMC388078
Fractionation of DNA on Hydroxyapatite with a Base-Specific Complexing Agent
Werner Pakroppa and Werner Müller
Proc Natl Acad Sci U S A. 1974 March; 71(3): 699–703.
PMCID: PMC388080
Role of RNA in Induction of Hepatic Microsomal Mixed Function Oxidases
Samson T. Jacob, Martin B. Scharf, and Elliot S. Vessel
Proc Natl Acad Sci U S A. 1974 March; 71(3): 704–707.
PMCID: PMC388081
Mechanism of Action of the Mycotoxin Trichodermin, a 12,13-Epoxytrichothecene
Cha-mer Wei, Bent S. Hansen, Maurice H. Vaughan, Jr., and Calvin S. McLaughlin
Proc Natl Acad Sci U S A. 1974 March; 71(3): 713–717.
PMCID: PMC388083
Parathyroid Hormone Receptors of Renal Cortex: Specific Binding of Biologically Active, 125I-Labeled Hormone and Relationship to Adenylate Cyclase Activation
Francis P. Di Bella, Thomas P. Douša, Sam S. Miller, and Claude D. Arnaud
Proc Natl Acad Sci U S A. 1974 March; 71(3): 723–726.
PMCID: PMC388085
Embryonic Cell Aggregation: Kinetics and Specificity of Binding of Enhancing Factors
Janne Balsamo and Jack Lilien
Proc Natl Acad Sci U S A. 1974 March; 71(3): 727–731.
PMCID: PMC388086
Extent of Transcription of Mouse Sarcoma-Leukemia Virus by RNA-Directed DNA Polymerase
A. Tavitian, R. Hamelin, P. Tchen, B. Olofsson, and M. Boiron
Proc Natl Acad Sci U S A. 1974 March; 71(3): 755–759.
PMCID: PMC388092
A Preliminary Map of the Major Transcription Units Read by T7 RNA Polymerase on the T7 and T3 Bacteriophage Chromosomes
Miriam Golomb and Michael Chamberlin
Proc Natl Acad Sci U S A. 1974 March; 71(3): 760–764.
PMCID: PMC388093
Requirement of Initiation Factor 3 in the Initiation of Polypeptide Synthesis with N-Acetylphenylalanyl-tRNA
Samuel D. Bernal, Benjamin M. Blumberg, and Tokumasa Nakamoto
Proc Natl Acad Sci U S A. 1974 March; 71(3): 774–778.
PMCID: PMC388096
Association of DNA-dependent and -independent Ribonucleoside Triphosphatase Activities with dnaB Gene Product of Escherichia coli
Sue Wickner, Michel Wright, and Jerard Hurwitz
Proc Natl Acad Sci U S A. 1974 March; 71(3): 783–787.
PMCID: PMC388098
Serotonin-Sensitive Adenylate Cyclase in Neural Tissue and Its Similarity to the Serotonin Receptor: A Possible Site of Action of Lysergic Acid Diethylamide
James A. Nathanson and Paul Greengard
Proc Natl Acad Sci U S A. 1974 March; 71(3): 797–801.
PMCID: PMC388101
Replication of Colicin E1 Plasmid DNA in Cell Extracts
Yoshimasa Sakakibara and Jun-Ichi Tomizawa
Proc Natl Acad Sci U S A. 1974 March; 71(3): 802–806.
PMCID: PMC388102
Localization of the Stringent Protein of Escherichia coli on the 50S Ribosomal Subunit
S. Ramagopal and Bernard D. Davis
Proc Natl Acad Sci U S A. 1974 March; 71(3): 820–824.
PMCID: PMC388106
Cleavage by RNase III Converts T3 and T7 Early Precursor RNA into Translatable Message
Kathleen Hercules, Manfred Schweiger, and Walter Sauerbier
Proc Natl Acad Sci U S A. 1974 March; 71(3): 840–844.
PMCID: PMC388110
Evidence for Allosterism in In Vitro DNA Synthesis on RNA Templates
Liebe F. Cavalieri, Mukund J. Modak, and Stuart L. Marcus
Proc Natl Acad Sci U S A. 1974 March; 71(3): 858–862.
PMCID: PMC388114
Evolution and the Distribution of Glutaminyl and Asparaginyl Residues in Proteins
Arthur B. Robinson
Proc Natl Acad Sci U S A. 1974 March; 71(3): 885–888.
PMCID: PMC388120
Regulation of Mammalian Fatty-Acid Synthetase. The Roles of Carbohydrate and Insulin
Joseph J. Volpe and P. Roy Vagelos
Proc Natl Acad Sci U S A. 1974 March; 71(3): 889–893.
PMCID: PMC388121
Prediction of Secondary Structure of Proteins. A Comparison of the ϕ,Ψ Angles Previously Predicted for Cytochrome c with Recent X-Ray Crystallographic Findings
Elvin A. Kabat and Tai Te Wu
Proc Natl Acad Sci U S A. 1974 March; 71(3): 899–900.
PMCID: PMC388123
Concordance of Collagen-Based Radiocarbon and Aspartic-Acid Racemization Ages
Jeffrey L. Bada, Roy A. Schroeder, Reiner Protsch, and Rainer Berger
Proc Natl Acad Sci U S A. 1974 March; 71(3): 914–917.
PMCID: PMC388127
Aspartate Transcarbamoylase Molecules Lacking One Regulatory Subunit
Y. R. Yang, J. M. Syvanen, G. M. Nagel, and H. K. Schachman
Proc Natl Acad Sci U S A. 1974 March; 71(3): 918–922.
PMCID: PMC388128
Photochemical Attachment of lac Repressor to Bromodeoxyuridine-Substituted lac Operator by Ultraviolet Radiation
Syr-Yaung Lin and Arthur D. Riggs
Proc Natl Acad Sci U S A. 1974 March; 71(3): 947–951.
PMCID: PMC388134
Antimalarial Quinones for Prophylaxis Based on a Rationale of Inhibition of Electron Transfer in Plasmodium
Yieh-Ping Wan, Thomas H. Porter, and Karl Folkers
Proc Natl Acad Sci U S A. 1974 March; 71(3): 952–956.
PMCID: PMC388135
Identification of a High Affinity Nuclear Acceptor Site for Estrogen Receptor of Calf Uterus
Giovanni Alfredo Puca, Vincenzo Sica, and Ernesto Nola
Proc Natl Acad Sci U S A. 1974 March; 71(3): 979–983.
PMCID: PMC388141
Structure of Nascent ϕX174 Replicative Form: Evidence for Discontinuous DNA Replication
Shlomo Eisenberg and David T. Denhardt
Proc Natl Acad Sci U S A. 1974 March; 71(3): 984–988.
PMCID: PMC388142
Lipid-Protein Interactions in High Density Lipoproteins
Gerd Assmann and H. Bryan Brewer, Jr.
Proc Natl Acad Sci U S A. 1974 March; 71(3): 989–993.
PMCID: PMC388143
A Mutant of Escherichia coli Defective in Leucyl, Phenylalanyl-tRNA-Protein Transferase
R. L. Soffer and M. Savage
Proc Natl Acad Sci U S A. 1974 March; 71(3): 1004–1007.
PMCID: PMC388146
Biological Sciences: Biophysics
The lac Repressor Protein: Molecular Shape, Subunit Structure, and Proposed Model for Operator Interaction Based on Structural Studies of Microcrystals
Thomas A. Steitz, Timothy J. Richmond, David Wise, and Donald Engelman
Proc Natl Acad Sci U S A. 1974 March; 71(3): 593–597.
PMCID: PMC388057
The Electrostatic Basis of Mg++ Inhibition of Transmitter Release
Robert U. Muller and Alan Finkelstein
Proc Natl Acad Sci U S A. 1974 March; 71(3): 923–926.
PMCID: PMC388129
The Cation Radicals of Free Base and Zinc Bacteriochlorin, Bacteriochlorophyll, and Bacteriopheophytin
J. Fajer, D. C. Borg, A. Forman, R. H. Felton, D. Dolphin, and L. Vegh
Proc Natl Acad Sci U S A. 1974 March; 71(3): 994–998.
PMCID: PMC388144
Biological Sciences: Cell Biology
Chick-Erythrocyte Nucleus Reactivation in Heterokaryons: Suppression by Inhibitors of Proteolytic Enzymes
Zbigniew Darzynkiewicz, Ewa Chelmicka-Szorc, and Barry G. W. Arnason
Proc Natl Acad Sci U S A. 1974 March; 71(3): 644–647.
PMCID: PMC388068
Intracellular Cyclic AMP Concentration Responds Specifically to Growth Regulation by Serum
Jan Oey, Arthur Vogel, and Robert Pollack
Proc Natl Acad Sci U S A. 1974 March; 71(3): 694–698.
PMCID: PMC388079
Introduction of Specific Cleavages into RNAs of RNA Bacteriophages for Determination of Base Sequences
Motohiro Fuke
Proc Natl Acad Sci U S A. 1974 March; 71(3): 742–745.
PMCID: PMC388089
Control of Translation in Cultured Cells: Continued Synthesis and Accumulation of Messenger RNA in Nondividing Cultures
Philip S. Rudland
Proc Natl Acad Sci U S A. 1974 March; 71(3): 750–754.
PMCID: PMC388091
Independent Regulation of the Nuclear RNA Polymerases I and II During the Yeast Cell Cycle
Jesus Sebastian, Isamu Takano, and Harlyn O. Halvorson
Proc Natl Acad Sci U S A. 1974 March; 71(3): 769–773.
PMCID: PMC388095
Carotenoid Transformations in the Chloroplast Envelope
S. W. Jeffrey, Roland Douce, and A. A. Benson
Proc Natl Acad Sci U S A. 1974 March; 71(3): 807–810.
PMCID: PMC388103
Primitive Teratocarcinoma Cells Express a Differentiation Antigen Specified by a Gene at the T-Locus in the Mouse
Karen Artzt, Darothea Bennett, and François Jacob
Proc Natl Acad Sci U S A. 1974 March; 71(3): 811–814.
PMCID: PMC388104
The Presence of the Lucké Herpesvirus Genome in Induced Tadpole Tumors and Its Oncogenicity: Koch-Henle Postulates Fulfilled
Robert F. Naegele, Allan Granoff, and R. W. Darlington
Proc Natl Acad Sci U S A. 1974 March; 71(3): 830–834.
PMCID: PMC388108
A Diffusible Factor Restoring Contact Inhibition of Growth to Malignant Melanocytes
George Lipkin and Margarete E. Knecht
Proc Natl Acad Sci U S A. 1974 March; 71(3): 849–853.
PMCID: PMC388112
The Membrane Junctions in Communicating and Noncommunicating Cells, Their Hybrids, and Segregants
R. Azarnia, W. J. Larsen, and W. R. Loewenstein
Proc Natl Acad Sci U S A. 1974 March; 71(3): 880–884.
PMCID: PMC388119
Induction of Nucleolar and Mitochondrial DNA Replication in Tetrahymena pyriformis
Jan Engberg, Jytte R. Nilsson, Ronald E. Pearlman, and Vagn Leick
Proc Natl Acad Sci U S A. 1974 March; 71(3): 894–898.
PMCID: PMC388122
Galactosyltransferase and Concanavalin A Agglutination of Cells
Daniel K. Podolsky, Milton M. Weiser, J. Thomas La Mont, and Kurt J. Isselbacher
Proc Natl Acad Sci U S A. 1974 March; 71(3): 904–908.
PMCID: PMC388125
Hybrid Antibody-Induced Topographical Redistribution of Surface Immunoglobulins, Alloantigens, and Concanavalin A Receptors on Mouse Lymphoid Cells
Christopher W. Stackpole, Lawrence T. De Milio, Ulrich Hämmerling, Janet B. Jacobson, and Michael P. Lardis
Proc Natl Acad Sci U S A. 1974 March; 71(3): 932–936.
PMCID: PMC388131
Biological Sciences: Genetics
Reversion of a Chinese Hamster Cell Auxotrophic Mutant
Lawrence A. Chasin, Aileen Feldman, Marvin Konstam, and Gail Urlaub
Proc Natl Acad Sci U S A. 1974 March; 71(3): 718–722.
PMCID: PMC388084
The Moments of Stochastic Integrals and the Distribution of Sojourn Times
Thomas Nagylaki
Proc Natl Acad Sci U S A. 1974 March; 71(3): 746–749.
PMCID: PMC388090
The Roles of the Lambda cIII Gene and the Escherichia coli Catabolite Gene Activation System in the Establishment of Lysogeny by Bacteriophage Lambda
Marlene Belfort and Daniel Wulff
Proc Natl Acad Sci U S A. 1974 March; 71(3): 779–782.
PMCID: PMC388097
Complementation Studies of Lethal Alleles in the Mouse Causing Deficiencies of Glucose-6-Phosphatase, Tyrosine Aminotransferase, and Serine Dehydratase
Salome Gluecksohn-Waelsch, Michael B. Schiffman, Janet Thorndike, and Carl F. Cori
Proc Natl Acad Sci U S A. 1974 March; 71(3): 825–829.
PMCID: PMC388107
Four Peroxidase Loci in Red-Fruited Tomato Species: Genetics and Geographic Distribution
Charles M. Rick, Richard W. Zobel, and Jon F. Fobes
Proc Natl Acad Sci U S A. 1974 March; 71(3): 835–839.
PMCID: PMC388109
Expression of Differentiated Functions in Hepatoma Cell Hybrids: High Frequency of Induction of Mouse Albumin Production in Rat Hepatoma-Mouse Lymphoblast Hybrids
Stephen E. Malawista and Mary C. Weiss
Proc Natl Acad Sci U S A. 1974 March; 71(3): 927–931.
PMCID: PMC388130
Isolation and Analysis of Somatic Hybrids Derived from Two Human Diploid Cells
Barbara R. Migeon, Robert A. Norum, and Cheryl M. Corsaro
Proc Natl Acad Sci U S A. 1974 March; 71(3): 937–941.
PMCID: PMC388132
Human Antigen and Enzyme Markers in Man-Chinese Hamster Somatic Cell Hybrids: Evidence for Synteny Between the HL-A, PGM3, ME1, and IPO-B Loci
H. Van Someren, A. Westerveld, A. Hagemeijer, J. R. Mees, P. Meera Khan, and O. B. Zaalberg
Proc Natl Acad Sci U S A. 1974 March; 71(3): 962–965.
PMCID: PMC388137
Genetic Recombination in Rhodopseudomonas capsulata
Barry Marrs
Proc Natl Acad Sci U S A. 1974 March; 71(3): 971–973.
PMCID: PMC388139
Genetic Differentiation Within and Between Species of the Drosophila willistoni Group
Francisco J. Ayala and Martin L. Tracey
Proc Natl Acad Sci U S A. 1974 March; 71(3): 999–1003.
PMCID: PMC388145
Biological Sciences: Immunology
Membrane Molecules Determined by the H-2 Associated Immune Response Region: Isolation and Some Properties
S. E. Cullen, C. S. David, D. C. Shreffler, and S. G. Nathenson
Proc Natl Acad Sci U S A. 1974 March; 71(3): 648–652.
PMCID: PMC388069
Human Leukemia-Associated Anti-Nuclear Reactivity
George Klein, Melita Steiner, Francis Wiener, and Eva Klein
Proc Natl Acad Sci U S A. 1974 March; 71(3): 685–689.
PMCID: PMC388077
Variable Region Sequences of Five Human Immunoglobulin Heavy Chains of the VHIII Subgroup: Definitive Identification of Four Heavy Chain Hypervariable Regions
J. Donald Capra and J. Michael Kehoe
Proc Natl Acad Sci U S A. 1974 March; 71(3): 845–848.
PMCID: PMC388111
A Human Leukemia Cell with Both B and T Cell Surface Receptors
E. Shevach, R. Edelson, M. Frank, M. Lutzner, and I. Green
Proc Natl Acad Sci U S A. 1974 March; 71(3): 863–866.
PMCID: PMC388115
Effect of Transfer Factor Therapy on Mixed Lymphocyte Culture Reactivity
Bo Dupont, Mark Ballow, John A. Hansen, Cedric Quick, Edmond J. Yunis, and Robert A. Good
Proc Natl Acad Sci U S A. 1974 March; 71(3): 867–871.
PMCID: PMC388116
Migration Enhancement Factor: A New Lymphokine
Richard H. Weisbart, Rodney Bluestone, Leonard S. Goldberg, and Carl M. Pearson
Proc Natl Acad Sci U S A. 1974 March; 71(3): 875–879.
PMCID: PMC388118
Incomplete Restoration of the Bursa-Dependent Immune System After Transplantation of Allogeneic Stem Cells into Immunodeficient Chicks
Paavo Toivanen, Auli Toivanen, and Tapani Sorvari
Proc Natl Acad Sci U S A. 1974 March; 71(3): 957–961.
PMCID: PMC388136
“Alpha Chain Disease” Protein Def: Internal Deletion of a Human Immunoglobulin A1 Heavy Chain
Carlota Wolfenstein-Todel, Edith Mihaesco, and Blas Frangione
Proc Natl Acad Sci U S A. 1974 March; 71(3): 974–978.
PMCID: PMC388140
Biological Sciences: Medical Sciences
A Distinct Class of Inducible Murine Type-C Viruses that Replicates in the Rabbit SIRC Cell Line
Raoul E. Benveniste, Michael M. Lieber, and George J. Todaro
Proc Natl Acad Sci U S A. 1974 March; 71(3): 602–606.
PMCID: PMC388059
Persistence of O6-Ethylguanine in Rat-Brain DNA: Correlation with Nervous System-Specific Carcinogenesis by Ethylnitrosourea
Regine Goth and Manfred F. Rajewsky
Proc Natl Acad Sci U S A. 1974 March; 71(3): 639–643.
PMCID: PMC388067
A Microassay for Uroporphyrinogen I Synthase, One of Three Abnormal Enzyme Activities in Acute Intermittent Porphyria, and its Application to the Study of the Genetics of this Disease
S. Sassa, S. Granick, D. R. Bickers, H. L. Bradlow, and A. Kappas
Proc Natl Acad Sci U S A. 1974 March; 71(3): 732–736.
PMCID: PMC388087
A Simple Method for the Detection of Mutagens in Urine: Studies with the Carcinogen 2-Acetylaminofluorene
William E. Durston and Bruce N. Ames
Proc Natl Acad Sci U S A. 1974 March; 71(3): 737–741.
PMCID: PMC388088
Familial Hypercholesterolemia: Defective Binding of Lipoproteins to Cultured Fibroblasts Associated with Impaired Regulation of 3-Hydroxy-3-Methylglutaryl Coenzyme A Reductase Activity
Michael S. Brown and Joseph L. Goldstein
Proc Natl Acad Sci U S A. 1974 March; 71(3): 788–792.
PMCID: PMC388099
Globoid Cell Leukodystrophy: Deficiency of Lactosyl Ceramide Beta-Galactosidase
David A. Wenger, Martha Sattler, and William Hiatt
Proc Natl Acad Sci U S A. 1974 March; 71(3): 854–857.
PMCID: PMC388113
Electron Spin Resonance Studies of Erythrocytes from Patients with Myotonic Muscular Dystrophy
D. A. Butterfield, D. B. Chesnut, A. D. Roses, and S. H. Appel
Proc Natl Acad Sci U S A. 1974 March; 71(3): 909–913.
PMCID: PMC388126
Biological Sciences: Microbiology
Replication of the Resident Repressed Epstein-Barr Virus Genome During the Early S Phase (S-1 Period) of Nonproducer Raji Cells
Berge Hampar, Akiko Tanaka, Meihan Nonoyama, and Jeffery G. Derge
Proc Natl Acad Sci U S A. 1974 March; 71(3): 631–633.
PMCID: PMC388065
The Isolation of Simian Virus 40 Variants with Specifically Altered Genomes
William W. Brockman and Daniel Nathans
Proc Natl Acad Sci U S A. 1974 March; 71(3): 942–946.
PMCID: PMC388133
Biological Sciences: Physiology
Alteration of Vein Cyclic 3′:5′ Nucleotide Concentrations During Changes in Contractility
Earl W. Dunham, Mari K. Haddox, and Nelson D. Goldberg
Proc Natl Acad Sci U S A. 1974 March; 71(3): 815–819.
PMCID: PMC388105
Comparison of Human Serum Dopamine-β-Hydroxylase Levels by Radioimmunoassay and Enzymatic Assay
Robert A. Rush, Paul E. Thomas, Toshiharu Nagatsu, and Sidney Udenfriend
Proc Natl Acad Sci U S A. 1974 March; 71(3): 872–874.
PMCID: PMC388117
Olfactory Basis of Homing Behavior in the Giant Garden Slug, Limax maximus
Alan Gelperin
Proc Natl Acad Sci U S A. 1974 March; 71(3): 966–970.
PMCID: PMC388138
Biological Sciences: Psychology
Conditioned Behavior in Drosophila melanogaster
William G. Quinn, William A. Harris, and Seymour Benzer
Proc Natl Acad Sci U S A. 1974 March; 71(3): 708–712.
PMCID: PMC388082
Biological Sciences: Zoology
Comparison of Weigert Stained Sections with Unfixed, Unstained Sections for Study of Myelin Sheaths
Curt P. Richter and Carolyn L. Warner
Proc Natl Acad Sci U S A. 1974 March; 71(3): 598–601.
PMCID: PMC388058
Were Workers of Eusocial Hymenoptera Initially Altruistic or Oppressed?
Charles D. Michener and Denis J. Brothers
Proc Natl Acad Sci U S A. 1974 March; 71(3): 671–674.
PMCID: PMC388074
The Secretion of α-Ecdysone by the Prothoracic Glands of Manduca sexta In Vitro
D. S. King, W. E. Bollenbacher, D. W. Borst, W. V. Vedeckis, J. D. O'Connor, P. I. Ittycheriah, and L. I. Gilbert
Proc Natl Acad Sci U S A. 1974 March; 71(3): 793–796.
PMCID: PMC388100
Ethological Isolation Among Three Species of the planitibia Subgroup of Hawaiian Drosophila
J. N. Ahearn, H. L. Carson, Th. Dobzhansky, and K. Y. Kaneshiro
Proc Natl Acad Sci U S A. 1974 March; 71(3): 901–903.
PMCID: PMC388124
Physical Sciences: Physics
A Variant of Special Relativity and Long-Distance Astronomy
I. E. Segal
Proc Natl Acad Sci U S A. 1974 March; 71(3): 765–768.
PMCID: PMC388094
Correction
Interrelationship between adenylate cyclase activity, adenosine 3′:5′ cyclic monophosphate phosphodiesterase activity, adenosine 3′:5′ cyclic monophosphate levels, and growth of cells in culture
Proc Natl Acad Sci U S A. 1974 March; 71(3): 1008.
PMCID: PMC388147
Corrects: Wayne B. Anderson, et al. Interrelationship Between Adenylate Cyclase Activity, Adenosine 3′:5′ Cyclic Monophosphate Phosphodiesterase Activity, Adenosine 3′:5′ Cyclic Monophosphate Levels, and Growth of Cells in Culture. Proc Natl Acad Sci U S A. 1973 December; 70(12 Pt 1-2): 3802–3805.
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