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Volume 60(2);  June 1968
The cover of the journal
Biosatellite II experiments: preliminary results.
K V Thimann
Proc Natl Acad Sci U S A. 1968 June; 60(2): 347–361.
PMCID: PMC225054
A TRIRETICULATE CRYSTAL STRUCTURE: TRIHYDROGEN COBALTICYANIDE AND TRISILVER COBALTICYANIDE
Linus Pauling and Peter Pauling
Proc Natl Acad Sci U S A. 1968 June; 60(2): 362–367.
PMCID: PMC225055
On the sulfur components of iron-sulfur proteins. I. The number of acid-labile sulfur groups sharing an unpaired electron with iron.
W H Orme-Johnson, R E Hansen, H Beinert, J C Tsibris, R C Bartholomaus, and I C Gunsalus
Proc Natl Acad Sci U S A. 1968 June; 60(2): 368–372.
PMCID: PMC225056
High-resolution proton magnetic resonance spectra of sperm whale cyanometmyoglobin.
K Wüthrich, R G Shulman, and J Peisach
Proc Natl Acad Sci U S A. 1968 June; 60(2): 373–380.
PMCID: PMC225057
ON THE VALIDITY OF THE KIRKWOOD-RISEMAN THEORY
Robert Zwanzig, James Kiefer, and George H. Weiss
Proc Natl Acad Sci U S A. 1968 June; 60(2): 381–386.
PMCID: PMC225058
THE SIGNIFICANT STRUCTURE THEORY APPLIED TO SOME LIQUID ROCKET FUELS
T. Richard Schmidt, Mu Shik Jhon, and Henry Eyring
Proc Natl Acad Sci U S A. 1968 June; 60(2): 387–393.
PMCID: PMC225059
Partial molar rotatory powers and optical activity in proteins and polypeptides. I. The fully extended chain and the antiparallel beta-pleated sheet.
D W Urry
Proc Natl Acad Sci U S A. 1968 June; 60(2): 394–401.
PMCID: PMC225060
THE STRUCTURE OF A CRYSTALLINE COMPLEX CONTAINING ONE PHENOBARBITAL MOLECULE AND TWO ADENINE DERIVATIVES
Sung-Hou Kim and Alexander Rich
Proc Natl Acad Sci U S A. 1968 June; 60(2): 402–408.
PMCID: PMC225061
Specificity of oligonucleotide synthesis directed by polyuridylic acid.
J Sulston, R Lohrmann, L E Orgel, and H T Miles
Proc Natl Acad Sci U S A. 1968 June; 60(2): 409–415.
PMCID: PMC225062
INFLUENCE OF ATMOSPHERIC STABILITY LAYERS ON THE EFFECT OF GROUND-BASED CLOUD SEEDING, I. EMPIRICAL RESULTS
Jerzy Neyman, Elizabeth L. Scott, and Marcella A. Wells
Proc Natl Acad Sci U S A. 1968 June; 60(2): 416–423.
PMCID: PMC225063
INFLUENCE OF ATMOSPHERIC STABILITY LAYERS ON THE EFFECT OF GROUND-BASED CLOUD SEEDING, II. HYPOTHESES IN EXPLANATION
Morris Neiburger and Ho-Chih Chin
Proc Natl Acad Sci U S A. 1968 June; 60(2): 424–431.
PMCID: PMC225064
THE NONIMMERSION PROBLEM FOR RPn AND HIGHER-ORDER COHOMOLOGY OPERATIONS
S. Gitler, M. Mahowald, and R. James Milgram
Proc Natl Acad Sci U S A. 1968 June; 60(2): 432–437.
PMCID: PMC225065
SOLUTION OF THE HEAWOOD MAP-COLORING PROBLEM
Gerhard Ringel and J. W. T. Youngs
Proc Natl Acad Sci U S A. 1968 June; 60(2): 438–445.
PMCID: PMC225066
ON THE CONVERGENCE OF APPROXIMANTS TO A MARKOV CHAIN, II
David A. Freedman
Proc Natl Acad Sci U S A. 1968 June; 60(2): 446–449.
PMCID: PMC225067
ELECTRON SPIN RESONANCE OF AN IRRADIATED SINGLE CRYSTAL OF DEOXYADENOSINE MONOHYDRATE
James J. Lichter and Walter Gordy
Proc Natl Acad Sci U S A. 1968 June; 60(2): 450–455.
PMCID: PMC225068
THE ELEMENTARY COMPOSITION OF Latimeria chalumnae SMITH
Ursula M. Cowgill, G. E. Hutchinson, and H. Catherine W. Skinner
Proc Natl Acad Sci U S A. 1968 June; 60(2): 456–463.
PMCID: PMC225069
Variability of interspike intervals in optic nerve fibers of Limulus: effect of light and dark adaptation.
F Ratliff, H K Hartline, and D Lange
Proc Natl Acad Sci U S A. 1968 June; 60(2): 464–469.
PMCID: PMC225070
Suppression of the action potential in nerve by nitrobenzene derivatives.
I M Cooke, J M Diamond, A D Grinnell, S Hagiwara, and H Sakata
Proc Natl Acad Sci U S A. 1968 June; 60(2): 470–477.
PMCID: PMC225071
Reduction of norepinephrine in the lower brainstem by psychological stimulus.
A S Welch and B L Welch
Proc Natl Acad Sci U S A. 1968 June; 60(2): 478–481.
PMCID: PMC225072
Early release of growth inhibition in cells infected with Rous sarcoma virus.
H Rubin and C Colby
Proc Natl Acad Sci U S A. 1968 June; 60(2): 482–488.
PMCID: PMC225073
Infectious mononucleosis: detection of herpeslike virus and reticular aggregates of small cytoplasmic particles in continuous lymphoid cell lines derived from peripheral blood.
H L Moses, P R Glade, J A Kasel, A S Rosenthal, Y Hirshaut, and L N Chessin
Proc Natl Acad Sci U S A. 1968 June; 60(2): 489–496.
PMCID: PMC225074
THE BIOLOGICAL AND MECHANICAL ROLE OF SOIL FUNGI
F. W. Went and N. Stark
Proc Natl Acad Sci U S A. 1968 June; 60(2): 497–504.
PMCID: PMC225075
EXPERIMENTAL BIOLOGY OF AMMONIA-RICH ENVIRONMENTS: OPTICAL AND ISOTOPIC EVIDENCE FOR VITAL ACTIVITY IN Penicillium IN LIQUID AMMONIA-GLYCEROL MEDIA AT -40°C
S. M. Siegel, Henry C. Nathan, and Karen Roberts
Proc Natl Acad Sci U S A. 1968 June; 60(2): 505–508.
PMCID: PMC225076
Unstable redundancy of genes for ribosomal RNA.
F M Ritossa
Proc Natl Acad Sci U S A. 1968 June; 60(2): 509–516.
PMCID: PMC225077
The frequency distribution of lethal chromosomes in finite populations.
M Nei
Proc Natl Acad Sci U S A. 1968 June; 60(2): 517–524.
PMCID: PMC225078
Regulation of transcription of the SV40 DNA in productively infected and in transformed cells.
K Oda and R Dulbecco
Proc Natl Acad Sci U S A. 1968 June; 60(2): 525–532.
PMCID: PMC225079
Nomarski interference contrast resolution of subchromatid structure.
M P Maguire
Proc Natl Acad Sci U S A. 1968 June; 60(2): 533–536.
PMCID: PMC225080
Evidence for multiple structural genes for the gamma chain of human fetal hemoglobin.
W A Schroeder, T H Huisman, J R Shelton, J B Shelton, E F Kleihauer, A M Dozy, and B Robberson
Proc Natl Acad Sci U S A. 1968 June; 60(2): 537–544.
PMCID: PMC225081
Single-allele expression at an X-linked hyperuricemia locus in heterozygous human cells.
J Salzmann, R DeMars, and P Benke
Proc Natl Acad Sci U S A. 1968 June; 60(2): 545–552.
PMCID: PMC225082
Differential synthesis of the genes for ribosomal RNA during amphibian oögenesis.
J G Gall
Proc Natl Acad Sci U S A. 1968 June; 60(2): 553–560.
PMCID: PMC225083
Genetics of somatic mammalian cells, VI, use of an antimetabolite in analysis of gene multiplicity.
T T Puck and F T Kao
Proc Natl Acad Sci U S A. 1968 June; 60(2): 561–568.
PMCID: PMC225084
Formation of active hybrids from subunits of muscle ribosomes from normal and diabetic rats.
T E Martin and I G Wool
Proc Natl Acad Sci U S A. 1968 June; 60(2): 569–574.
PMCID: PMC225085
Protein synthesis during meiosis.
Y Hotta, L G Parchman, and H Stern
Proc Natl Acad Sci U S A. 1968 June; 60(2): 575–582.
PMCID: PMC225086
Altered nucleic acid metabolism in human cell cultures infected with mycoplasma.
E M Levine, L Thomas, D McGregor, L Hayflick, and H Eagle
Proc Natl Acad Sci U S A. 1968 June; 60(2): 583–589.
PMCID: PMC225087
Inhibition by nucleotides of liver microsomal glucose-6-phosphatase.
R C Nordlie, T L Hanson, P T Johns, and D G Lygre
Proc Natl Acad Sci U S A. 1968 June; 60(2): 590–597.
PMCID: PMC225088
Fluorescence of protonated excited-state forms of 5-hydroxytryptamine (serotonin) and related indoles.
R F Chen
Proc Natl Acad Sci U S A. 1968 June; 60(2): 598–605.
PMCID: PMC225089
Polysomes of bovine anterior pituitary gland and their role in hormone and protein biosynthesis.
P R Adiga, R O Hussa, M C Robertson, H R Hohl, and T Winnick
Proc Natl Acad Sci U S A. 1968 June; 60(2): 606–613.
PMCID: PMC225090
Interfacial reaggregation of ultrasonically disrupted erythrocyte membranes.
R G Kirk
Proc Natl Acad Sci U S A. 1968 June; 60(2): 614–621.
PMCID: PMC225091
The spontaneous reoxidation of reduced beef and rat proinsulins.
D F Steiner and J L Clark
Proc Natl Acad Sci U S A. 1968 June; 60(2): 622–629.
PMCID: PMC225092
Separation of B. subtilis DNA into complementary strands, I. Biological properties.
R Rudner, J D Karkas, and E Chargaff
Proc Natl Acad Sci U S A. 1968 June; 60(2): 630–635.
PMCID: PMC225093
The fate of the DNA of adenovirus type 12 in baby hamster kidney cells.
W Doerfler
Proc Natl Acad Sci U S A. 1968 June; 60(2): 636–643.
PMCID: PMC225094
A kinetic model of metabolism essential to differentiation in Dictyostelium discoideum.
B Wright, W Simon, and B T Walsh
Proc Natl Acad Sci U S A. 1968 June; 60(2): 644–651.
PMCID: PMC225095
Mechanisms of stimulation of protein synthesis by thyroid hormones in vivo.
L Sokoloff, P A Roberts, M M Januska, and J E Kline
Proc Natl Acad Sci U S A. 1968 June; 60(2): 652–659.
PMCID: PMC225096
Antibody-mediated activation of a defective beta-D-galactosidase extracted from an Escherichia coli mutant.
M B Rotman and F Celada
Proc Natl Acad Sci U S A. 1968 June; 60(2): 660–667.
PMCID: PMC225097
Reduction and specific alkylation of the receptor for acetylcholine.
A Karlin and M Winnik
Proc Natl Acad Sci U S A. 1968 June; 60(2): 668–674.
PMCID: PMC225098
On three complementary amino acid polymerization factors from Bacillus stearothermophilus: separation of a complex containing two of the factors, guanosine-5'-triphosphate and aminoacyl-transfer RNA.
A Skoultchi, Y Ono, H M Moon, and P Lengyel
Proc Natl Acad Sci U S A. 1968 June; 60(2): 675–682.
PMCID: PMC225099
Immunoglobulin assembly in a mouse myeloma.
D Schubert
Proc Natl Acad Sci U S A. 1968 June; 60(2): 683–690.
PMCID: PMC225100
Studies of DNA replication in vivo, II. Evidence for the second intermediate.
M Oishi
Proc Natl Acad Sci U S A. 1968 June; 60(2): 691–698.
PMCID: PMC225101
The defect in Hurler's and Hunter's syndromes: faulty degradation of mucopolysaccharide.
J C Fratantoni, C W Hall, and E F Neufeld
Proc Natl Acad Sci U S A. 1968 June; 60(2): 699–706.
PMCID: PMC225102
The role of the N gene of phage lambda in the synthesis of two phage-specific proteins.
C M Radding and H Echols
Proc Natl Acad Sci U S A. 1968 June; 60(2): 707–712.
PMCID: PMC225103
The mechanism and direction of RNA synthesis templated by free minus strands of a "little" variant of Q-beta RNA.
D R Mills, H L Bishop, and S Spiegelman
Proc Natl Acad Sci U S A. 1968 June; 60(2): 713–720.
PMCID: PMC225104
Regulation of two forms of glutamine synthetase in Escherichia coli by the ammonia content of the growth medium.
H Holzer, H Schutt, Z Masek, and D Mecke
Proc Natl Acad Sci U S A. 1968 June; 60(2): 721–724.
PMCID: PMC225105
Interaction of sugars with the membrane protein component of the lactose transport system of Escherichia coli.
J R Carter, C F Fox, and E P Kennedy
Proc Natl Acad Sci U S A. 1968 June; 60(2): 725–732.
PMCID: PMC225106
Flavoproteins of the electron transport system and the site of action of amytal, rotenone, and piericidin A.
Y Hatefi
Proc Natl Acad Sci U S A. 1968 June; 60(2): 733–740.
PMCID: PMC225107
Journal Matter
Original table of contents page
Administrative content — journal masthead, notices, indexes, etc.
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