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Volume 70(2);  February 1973
The cover of the journal
Biological Sciences: Biochemistry
Hydrophobicity of Long Chain n-Alkyl Carboxylic Acids, as Measured by Their Distribution Between Heptane and Aqueous Solutions
Ross Smith and Charles Tanford
Proc Natl Acad Sci U S A. 1973 February; 70(2): 289–293.
PMCID: PMC433241
Detection of a Free Radical in the Primary Reaction of Chloroplast Photosystem II
Richard Malkin and Alan J. Bearden
Proc Natl Acad Sci U S A. 1973 February; 70(2): 294–297.
PMCID: PMC433242
Alteration of the Relative Stability of dA·dT and dG·dC Base Pairs in DNA
William B. Melchior, Jr. and Peter H. Von Hippel
Proc Natl Acad Sci U S A. 1973 February; 70(2): 298–302.
PMCID: PMC433243
Fructose 1,6-Bisphosphatase: The Role of Lysosomal Enzymes in the Modification of Catalytic and Structural Properties
S. Pontremoli, E. Melloni, F. Balestrero, A. T. Franzi, A. De Flora, and B. L. Horecker
Proc Natl Acad Sci U S A. 1973 February; 70(2): 303–305.
PMCID: PMC433244
Identification of the Synthesis of Guanosine Tetraphosphate (MS I) as Insertion of a Pyrophosphoryl Group into the 3′-Position in Guanosine 5′-Diphosphate
Jose Sy and Fritz Lipmann
Proc Natl Acad Sci U S A. 1973 February; 70(2): 306–309.
PMCID: PMC433245
Activation of a Proteolytic System by a Membrane Lipoprotein: Mechanism of Action of Tissue Factor
Yale Nemerson and M. P. Esnouf
Proc Natl Acad Sci U S A. 1973 February; 70(2): 310–314.
PMCID: PMC433246
In Vitro Repression of the Transcription of gal Operon by Purified gal Repressor
Shigetada Nakanishi, Sankar Adhya, M. E. Gottesman, and Ira Pastan
Proc Natl Acad Sci U S A. 1973 February; 70(2): 334–338.
PMCID: PMC433252
Reduction of Acetylene and Hydrazine with a Molybdenum-Glutathione Complex
Dietrich Werner, Sterling A. Russell, and Harold J. Evans
Proc Natl Acad Sci U S A. 1973 February; 70(2): 339–342.
PMCID: PMC433253
Phosphorylation of Ribosomal Proteins by Substrate-Specific Protein Kinases from Rabbit Reticulocytes
Jolinda A. Traugh, Marc Mumby, and Robert R. Traut
Proc Natl Acad Sci U S A. 1973 February; 70(2): 373–376.
PMCID: PMC433262
Biological Activities of Synthetic Peptides Corresponding to Fragments of and to the Entire Sequence of the Vasoactive Intestinal Peptide
Miklos Bodanszky, Yakir S. Klausner, and Sami I. Said
Proc Natl Acad Sci U S A. 1973 February; 70(2): 382–384.
PMCID: PMC433264
Regulation of Macromolecular Biosynthesis in a Mutant of Escherichia coli Defective in Membrane Phospholipid Biosynthesis
Michael Glaser, William H. Bayer, Robert, M. Bell, and P. Roy Vagelos
Proc Natl Acad Sci U S A. 1973 February; 70(2): 385–389.
PMCID: PMC433265
Evidence for 30-40S RNA as Precursor of the 60-70S RNA of Rous Sarcoma Virus
E. Canaani, K. V. D. Helm, and P. Duesberg
Proc Natl Acad Sci U S A. 1973 February; 70(2): 401–405.
PMCID: PMC433269
RNA-Linked Short DNA Fragments During Polyoma Replication
Göran Magnusson, Vincent Pigiet, Ernst L. Winnacker, Richard Abrams, and Peter Reichard
Proc Natl Acad Sci U S A. 1973 February; 70(2): 412–415.
PMCID: PMC433271
Regulation of the Expression of the N Gene of Bacteriophage Lambda
Jack Greenblatt
Proc Natl Acad Sci U S A. 1973 February; 70(2): 421–424.
PMCID: PMC433273
Temperature Adaptation of Enzymes: Roles of the Free Energy, the Enthalpy, and the Entropy of Activation
Philip S. Low, Jeffrey L. Bada, and George N. Somero
Proc Natl Acad Sci U S A. 1973 February; 70(2): 430–432.
PMCID: PMC433275
Purification of 14S Messenger RNA of Immunoglobulin Light Chain That Codes for a Possible Light-Chain Precursor
B. Mach, C. Faust, and P. Vassalli
Proc Natl Acad Sci U S A. 1973 February; 70(2): 451–455.
PMCID: PMC433280
Illicit Transport: The Oligopeptide Permease
Bruce N. Ames, Giovanna Ferro-Luzzi Ames, Janis Dillaha Young, Dorinne Tsuchiya, and Jean Lecocq
Proc Natl Acad Sci U S A. 1973 February; 70(2): 456–458.
PMCID: PMC433281
Translation of Rabbit Hemoglobin Messenger RNA In Vitro with Purified and Partially Purified Components from Brain or Liver of Different Species
M. H. Schreier and T. Staehelin
Proc Natl Acad Sci U S A. 1973 February; 70(2): 462–465.
PMCID: PMC433283
Mechanism of Action of Ribonuclease H Isolated from Avian Myeloblastosis Virus and Escherichia coli
Jonathan P. Leis, Ira Berkower, and Jerard Hurwitz
Proc Natl Acad Sci U S A. 1973 February; 70(2): 466–470.
PMCID: PMC433284
Adenosine 3′:5′-Cyclic Monophosphate as a Regulator of Bacterial Transformation
Edmund M. Wise, Jr., Susan P. Alexander, and Marilyn Powers
Proc Natl Acad Sci U S A. 1973 February; 70(2): 471–474.
PMCID: PMC433285
Solvent Proton Magnetic Relaxation Dispersion in Solutions of Concanavalin A
Seymour H. Koenig, Rodney D. Brown, III, and C. Fred Brewer
Proc Natl Acad Sci U S A. 1973 February; 70(2): 475–479.
PMCID: PMC433286
Insulin-Like Activity of Concanavalin A and Wheat Germ Agglutinin—Direct Interactions with Insulin Receptors
Pedro Cuatrecasas and Guy P. E. Tell
Proc Natl Acad Sci U S A. 1973 February; 70(2): 485–489.
PMCID: PMC433288
Isolation of a New RNA Polymerase-Binding Protein from Sporulating Bacillus subtilis
Arno L. Greenleaf, Thomas G. Linn, and Richard Losick
Proc Natl Acad Sci U S A. 1973 February; 70(2): 490–494.
PMCID: PMC433289
Separation of Specific Segments of Transforming DNA after Treatment with Endodeoxyribonuclease
Sol H. Goodgal and Rosa Gromkova
Proc Natl Acad Sci U S A. 1973 February; 70(2): 503–506.
PMCID: PMC433292
Hydroxyphenylazopyrimidines: Characterization of the Active Forms and Their Inhibitory Action on a DNA Polymerase from Bacillus subtilis
John M. Mackenzie, Marilyn M. Neville, George E. Wright, and Neal C. Brown
Proc Natl Acad Sci U S A. 1973 February; 70(2): 512–516.
PMCID: PMC433294
Influence of Leaving-Group Electronic Effect on α-Chymotrypsin: Catalytic Constants of Specific Substrates
Manfred Philipp, Ralph M. Pollack, and Myron L. Bender
Proc Natl Acad Sci U S A. 1973 February; 70(2): 517–520.
PMCID: PMC433295
The Reverse Turn as a Polypeptide Conformation in Globular Proteins
James L. Crawford, William N. Lipscomb, and Charlotte G. Schellman
Proc Natl Acad Sci U S A. 1973 February; 70(2): 538–542.
PMCID: PMC433301
Nicotinic Acid as a Ligand Affecting Leghemoglobin Structure and Oxygen Reactivity
Cyril A. Appleby, Beatrice A. Wittenberg, and Jonathan B. Wittenberg
Proc Natl Acad Sci U S A. 1973 February; 70(2): 564–568.
PMCID: PMC433307
Isolation of Substances That Stimulate RNA Synthesis from Red Kidney Bean: Their Activities in Lymphocytes and Escherichia coli
M. Harms-Ringdahl, I. Fedorcsák, and L. Ehrenberg
Proc Natl Acad Sci U S A. 1973 February; 70(2): 569–573.
PMCID: PMC433308
RNA Initiation with Dinucleoside Monophosphates during Transcription of Bacteriophage T4 DNA with RNA Polymerase of Escherichia coli
David J. Hoffman and Salil K. Niyogi
Proc Natl Acad Sci U S A. 1973 February; 70(2): 574–578.
PMCID: PMC433309
Biological Sciences: Botany
8-Bromoadenosine 3′:5′-Cyclic Monophosphate as a Promoter of Cell Division in Excised Tobacco Pith Parenchyma Tissue
Henry N. Wood and Armin C. Braun
Proc Natl Acad Sci U S A. 1973 February; 70(2): 447–450.
PMCID: PMC433279
Biological Sciences: Cell Biology
Mutations Affecting the Structure of Hypoxanthine: Guanine Phosphoribosyltransferase in Cultured Chinese Hamster Cells
A. L. Beaudet, D. J. Roufa, and C. T. Caskey
Proc Natl Acad Sci U S A. 1973 February; 70(2): 320–324.
PMCID: PMC433248
Control of Normal Differentiation of Myeloid Leukemic Cells to Macrophages and Granulocytes
Eitan Fibach, Makoto Hayashi, and Leo Sachs
Proc Natl Acad Sci U S A. 1973 February; 70(2): 343–346.
PMCID: PMC433254
Surface Changes in Temperature-Sensitive Simian Virus 40-Transformed Cells
K. D. Noonan, H. C. Renger, C. Basilico, and M. M. Burger
Proc Natl Acad Sci U S A. 1973 February; 70(2): 347–349.
PMCID: PMC433255
Mitochondrial Protein Synthesis: RNA with the Properties of Eukaryotic Messenger RNA
S. Perlman, H. T. Abelson, and S. Penman
Proc Natl Acad Sci U S A. 1973 February; 70(2): 350–353.
PMCID: PMC433256
Secretion and Extracellular Processing of Procollagen by Cultured Human Fibroblasts
Burton Goldberg and Charles J. Sherr
Proc Natl Acad Sci U S A. 1973 February; 70(2): 361–365.
PMCID: PMC433259
Effect of Environmental pH on Rescue of Simian Virus 40
G. Calothy, C. M. Croce, V. Defendi, H. Koprowski, and H. Eagle
Proc Natl Acad Sci U S A. 1973 February; 70(2): 366–368.
PMCID: PMC433260
A Factor from a Transformed Cell Line That Affects Cell Migration
R. R. Bürk
Proc Natl Acad Sci U S A. 1973 February; 70(2): 369–372.
PMCID: PMC433261
Temperature-Sensitive Variants of an Established Myoblast Line
W. F. Loomis, Jr., J. P. Wahrmann, and D. Luzzati
Proc Natl Acad Sci U S A. 1973 February; 70(2): 425–429.
PMCID: PMC433274
Structure and Development of Neuronal Connections in Isogenic Organisms: Cellular Interactions in the Development of the Optic Lamina of Daphnia
V. Lopresti, E. R. Macagno, and C. Levinthal
Proc Natl Acad Sci U S A. 1973 February; 70(2): 433–437.
PMCID: PMC433276
Evidence for Transport of 75S RNA from a Discrete Chromosome Region via Nuclear Sap to Cytoplasm in Chironomus tentans
B. Daneholt and H. Hosick
Proc Natl Acad Sci U S A. 1973 February; 70(2): 442–446.
PMCID: PMC433278
Specification of Positional Information in Retinal Ganglion Cells of Xenopus: Assays for Analysis of the Unspecified State
R. K. Hunt and Marcus Jacobson
Proc Natl Acad Sci U S A. 1973 February; 70(2): 507–511.
PMCID: PMC433293
Biological Sciences: Genetics
Expression of Differentiated Functions in Hepatoma Cell Hybrids: Alanine Aminotransferase
Robert S. Sparkes and Mary C. Weiss
Proc Natl Acad Sci U S A. 1973 February; 70(2): 377–381.
PMCID: PMC433263
Three Adjacent Transfer RNA Genes in Escherichia coli
Craig Squires, Bruce Konrad, Joel Kirschbaum, and John Carbon
Proc Natl Acad Sci U S A. 1973 February; 70(2): 438–441.
PMCID: PMC433277
Chromosomal Control of Mating Activity in Drosophila pseudoobscura
Richard N. Sherwin and Eliot B. Spiess
Proc Natl Acad Sci U S A. 1973 February; 70(2): 459–461.
PMCID: PMC433282
A Proposal for the Structure of the Drosophila Genome
James Bonner and Jung-Rung Wu
Proc Natl Acad Sci U S A. 1973 February; 70(2): 535–537.
PMCID: PMC433300
Biological Sciences: Immunology
Appearance in Trypsinized Normal Cells of Reactivity with Antibody Presumably Specific for Malignant Cells
Giulio Tarro
Proc Natl Acad Sci U S A. 1973 February; 70(2): 325–327.
PMCID: PMC433249
Purification of Hodgkin's Disease Tumor-Associated Antigens
David H. Katz, Stanley E. Order, Mary Graves, and Baruj Benacerraf
Proc Natl Acad Sci U S A. 1973 February; 70(2): 396–400.
PMCID: PMC433268
Induction of Immunoglobulin M Synthesis and Secretion in Bone-Marrow-Derived Lymphocytes by Locally Concentrated Concanavalin A
Jan Andersson and Fritz Melchers
Proc Natl Acad Sci U S A. 1973 February; 70(2): 416–420.
PMCID: PMC433272
Crossreactive Antigens on Human Cells Infected with Rauscher Leukemia Virus and on Human Acute Leukemia Cells
Dean L. Mann, Roger Halterman, and Brigid G. Leventhal
Proc Natl Acad Sci U S A. 1973 February; 70(2): 495–497.
PMCID: PMC433290
Biological Sciences: Medical Sciences
Effect of Stimulation of the Host Defense System by Coenzyme Q10 on Dibenzpyrene-Induced Tumors and Infection with Friend Leukemia Virus in Mice
Emile G. Bliznakov
Proc Natl Acad Sci U S A. 1973 February; 70(2): 390–394.
PMCID: PMC433266
Terminal Deoxynucleotidyl Transferase in a Case of Childhood Acute Lymphoblastic Leukemia
Ronald McCaffrey, Donna F. Smoler, and David Baltimore
Proc Natl Acad Sci U S A. 1973 February; 70(2): 521–525.
PMCID: PMC433296
Radioimmunoassay for Human Alpha1-Fetoprotein
Hulbert K. B. Silver, Phil Gold, Stephen Feder, Samuel O. Freedman, and Joseph Shuster
Proc Natl Acad Sci U S A. 1973 February; 70(2): 526–530.
PMCID: PMC433297
Cystic Fibrosis: Fractionation of Fibroblast Media Demonstrating Ciliary Inhibition
Barbara H. Bowman, Don R. Barnett, Reuben Matalon, B. Shannon Danes, and Alexander G. Bearn
Proc Natl Acad Sci U S A. 1973 February; 70(2): 548–551.
PMCID: PMC433303
Detection of Hepatic Phenylalanine 4-Hydroxylase in Classical Phenylketonuria
Paul A. Friedman, Daniel B. Fisher, Ellen S. Kang, and Seymour Kaufman
Proc Natl Acad Sci U S A. 1973 February; 70(2): 552–556.
PMCID: PMC433304
Biological Sciences: Microbiology
The Labyrinthine Sense Organs of the Frog
Ernest Glen Wever
Proc Natl Acad Sci U S A. 1973 February; 70(2): 498–502.
PMCID: PMC433291
Mechanism of Interferon Uptake in Parental and Somatic Monkey-Mouse Hybrid Cells
C. Chany, A. Grégoire, M. Vignal, J. Lemaitre-Moncuit, P. Brown, F. Besançon, H. Suarez, and R. Cassingena
Proc Natl Acad Sci U S A. 1973 February; 70(2): 557–561.
PMCID: PMC433305
Biological Sciences: Psychology
Cycloheximide and Acetoxycycloheximide: Inhibition of Tyrosine Hydroxylase Activity and Amnestic Effects
Louis B. Flexner, Roger G. Serota, and Richard H. Goodman
Proc Natl Acad Sci U S A. 1973 February; 70(2): 354–356.
PMCID: PMC433257
Cytoplasmic Adenylation and Processing of Maternal RNA
Isabel Slater, David Gillespie, and D. W. Slater
Proc Natl Acad Sci U S A. 1973 February; 70(2): 406–411.
PMCID: PMC433270
Biological Sciences: Zoology
Microinjection of Rabbit Hemoglobin Messenger RNA into Amphibian Oocytes and Embryos
J. Brachet, G. Huez, and E. Hubert
Proc Natl Acad Sci U S A. 1973 February; 70(2): 543–547.
PMCID: PMC433302
National Academy of Sciences Autumn Meeting (October 1972): Symposium: New Accelerators
The Clinton P. Anderson Meson Physics Facility (LAMPF)
Louis Rosen
Proc Natl Acad Sci U S A. 1973 February; 70(2): 603–610.
PMCID: PMC433314
Colliding Beams Versus Beams on Stationary Targets: Competing Tools for Elementary Particle Physics
W. K. H. Panofsky
Proc Natl Acad Sci U S A. 1973 February; 70(2): 611–618.
PMCID: PMC433315
CERN Intersecting Storage Rings (ISR)
K. Johnsen
Proc Natl Acad Sci U S A. 1973 February; 70(2): 619–626.
PMCID: PMC433316
National Academy of Sciences Autumn Meeting (October 1972): Symposium: Plant Growth Regulation
Plant Productivity and the Control of Photorespiration
Israel Zelitch
Proc Natl Acad Sci U S A. 1973 February; 70(2): 579–584.
PMCID: PMC433310
Competition Among Plants
F. W. Went
Proc Natl Acad Sci U S A. 1973 February; 70(2): 585–590.
PMCID: PMC433311
Ethylene in Plant Growth
Stanley P. Burg
Proc Natl Acad Sci U S A. 1973 February; 70(2): 591–597.
PMCID: PMC433312
The Use of Protoplasts for Genetic Research
Peter S. Carlson
Proc Natl Acad Sci U S A. 1973 February; 70(2): 598–602.
PMCID: PMC433313
Physical Sciences: Applied Physical Sciences
Downwind and Upwind Effects in the Arizona Cloud-Seeding Experiment
Jerzy Neyman, Elizabeth L. Scott, and Marcella A. Wells
Proc Natl Acad Sci U S A. 1973 February; 70(2): 357–360.
PMCID: PMC433258
Physical Sciences: Biochemistry
Translation of Bacteriophage Qβ RNA by Cytoplasmic Extracts of Mammalian Cells
Trudy G. Morrison and Harvey F. Lodish
Proc Natl Acad Sci U S A. 1973 February; 70(2): 315–319.
PMCID: PMC433247
Physical Sciences: Chemistry
A Stable Solid Model for Protein Sulfenyl Iodides
Lamar Field and Jerry E. White
Proc Natl Acad Sci U S A. 1973 February; 70(2): 328–330.
PMCID: PMC433250
Apparent Helix-Coil Transition for Poly(L-Alanine) as Measured by Nuclear Magnetic Resonance
Murray Goodman, Fujio Toda, and Norikazu Ueyama
Proc Natl Acad Sci U S A. 1973 February; 70(2): 331–333.
PMCID: PMC433251
Evidence for Boundary Lipid in Membranes
Patricia C. Jost, O. Hayes Griffith, Roderick A. Capaldi, and Garret Vanderkooi
Proc Natl Acad Sci U S A. 1973 February; 70(2): 480–484.
PMCID: PMC433287
The Energy of Substituted Ethanes. Asymmetry Orbitals
Lionel Salem, Roald Hoffmann, and Peter Otto
Proc Natl Acad Sci U S A. 1973 February; 70(2): 531–532.
PMCID: PMC433298
p-Algebras of Arbitrary Exponents
Shuen Yuan
Proc Natl Acad Sci U S A. 1973 February; 70(2): 533–534.
PMCID: PMC433299
Nuclear Magnetic Resonance Shift Reagents: Abnormal 13C Shifts Produced by Complexation of Lanthanide Chelates with Saturated Amines and n-Butyl Isocyanide
Claude Marzin, Dieter Leibfritz, Geoffrey E. Hawkes, and John D. Roberts
Proc Natl Acad Sci U S A. 1973 February; 70(2): 562–563.
PMCID: PMC433306
Physical Sciences: Mathematics
“Metodo Rapido” for Finding Real Quadratic Fields of Class-Number 1
S. Chowla and P. Chowla
Proc Natl Acad Sci U S A. 1973 February; 70(2): 395.
PMCID: PMC433267
Corrections
Blocking by histones of accessibility to DNA in chromatin: Addition of histones
Proc Natl Acad Sci U S A. 1973 February; 70(2): 627.
PMCID: PMC433317
Corrects: Alfred E. Mirsky, et al. Blocking by Histones of Accessibility to DNA in Chromatin: Addition of Histones. Proc Natl Acad Sci U S A. 1972 November; 69(11): 3243–3246.
Electron paramagnetic resonance of nitrogenase and nitrogenase components from Clostridium pasteurianum W5 and Azotobacter vinelandii OP
Proc Natl Acad Sci U S A. 1973 February; 70(2): 627.
PMCID: PMC433318
Corrects: W. H. Orme-Johnson, et al. Electron Paramagnetic Resonance of Nitrogenase and Nitrogenase Components from Clostridium pasteurianum W5 and Azotobacter vinelandii OP. Proc Natl Acad Sci U S A. 1972 November; 69(11): 3142–3145.
Nuclear DNA sequences present in human leukemic cells and absent in normal leukocytes
Proc Natl Acad Sci U S A. 1973 February; 70(2): 627.
PMCID: PMC433319
Corrects: W. G. Baxt, et al. Nuclear DNA Sequences Present in Human Leukemic Cells and Absent in Normal Leukocytes. Proc Natl Acad Sci U S A. 1972 December; 69(12): 3737–3741.
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