Table of Contents

Biological Sciences: Biochemistry

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  PHOTOREGULATION OF BIOLOGICAL ACTIVITY BY PHOTOCHROMIC REAGENTS, III. PHOTOREGULATION OF BIOELECTRICITY BY ACETYLCHOLINE RECEPTOR INHIBITORS

  Walter J. Deal, Bernard F. Erlanger, and David Nachmansohn

  PNAS December 1, 1969 64 (4) 1230-1234; https://doi.org/10.1073/pnas.64.4.1230
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  PEPTIDE CHAIN TERMINATION, V. THE ROLE OF RELEASE FACTORS IN MRNA TERMINATOR CODON RECOGNITION

  E. M. Scolnick and C. T. Caskey

  PNAS December 1, 1969 64 (4) 1235-1241; https://doi.org/10.1073/pnas.64.4.1235
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  MECHANISM OF DNA CHAIN GROWTH, IV. DIRECTION OF SYNTHESIS OF T4 SHORT DNA CHAINS AS REVEALED BY EXONUCLEOLYTIC DEGRADATION

  Tuneko Okazaki and Reiji Okazaki

  PNAS December 1, 1969 64 (4) 1242-1248; https://doi.org/10.1073/pnas.64.4.1242
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  PATTERNS OF RNA SYNTHESIS IN T5-INFECTED CELLS I. AS STUDIED BY THE TECHNIQUE OF DNA-RNA HYBRIDIZATION-COMPETITION

  Richard W. Moyer and John M. Buchanan

  PNAS December 1, 1969 64 (4) 1249-1256; https://doi.org/10.1073/pnas.64.4.1249
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  PROPERTIES OF HALVES OF IMMUNOGLOBULIN LIGHT CHAINS

  F. Anders Karlsson, Per A. Peterson, and Ingemar Berggård

  PNAS December 1, 1969 64 (4) 1257-1263; https://doi.org/10.1073/pnas.64.4.1257
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  CHICK CARTILAGE COLLAGEN: A NEW TYPE OF α1 CHAIN NOT PRESENT IN BONE OR SKIN OF THE SPECIES

  Edward J. Miller and Victor J. Matukas

  PNAS December 1, 1969 64 (4) 1264-1268; https://doi.org/10.1073/pnas.64.4.1264
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  OXYTOCIN AND NEUROHYPOPHYSEAL PEPTIDES: SPECTRAL ASSIGNMENT AND CONFORMATIONAL ANALYSIS BY 220 MHz NUCLEAR MAGNETIC RESONANCE

  LeRoy F. Johnson, I. L. Schwartz, and Roderich Walter

  PNAS December 1, 1969 64 (4) 1269-1275; https://doi.org/10.1073/pnas.64.4.1269
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  PHOSPHORYLATION OF LIVER HISTONE FOLLOWING THE ADMINISTRATION OF GLUCAGON AND INSULIN

  Thomas A. Langan

  PNAS December 1, 1969 64 (4) 1276-1283; https://doi.org/10.1073/pnas.64.4.1276
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  AN ATP-DEPENDENT DEOXYRIBONUCLEASE FROM Escherichia coli WITH A POSSIBLE ROLE IN GENETIC RECOMBINATION

  M. Oishi

  PNAS December 1, 1969 64 (4) 1292-1299; https://doi.org/10.1073/pnas.64.4.1292
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  Escherichia coli MUTANTS DEFECTIVE IN CHEMOTAXIS TOWARD SPECIFIC CHEMICALS

  Gerald L. Hazelbauer, Robert E. Mesibov, and Julius Adler

  PNAS December 1, 1969 64 (4) 1300-1307; https://doi.org/10.1073/pnas.64.4.1300
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  SOME OPTICAL PROPERTIES OF DIADENOSINE-5′-PHOSPHATES

  J. F. Scott and P. C. Zamecnik

  PNAS December 1, 1969 64 (4) 1308-1314; https://doi.org/10.1073/pnas.64.4.1308
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  TRANSCARBOXYLASE, VIII. ISOLATION AND PROPERTIES OF A BIOTIN-CARBOXYL CARRIER PROTEIN

  Brenda I. Gerwin, Birgit E. Jacobson, and Harland G. Wood

  PNAS December 1, 1969 64 (4) 1315-1322; https://doi.org/10.1073/pnas.64.4.1315
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  AN IMMUNOLOGICAL APPROACH TO THE STUDY OF EVOLUTION OF TRYPSINS

  Ruth Arnon and Hans Neurath

  PNAS December 1, 1969 64 (4) 1323-1328; https://doi.org/10.1073/pnas.64.4.1323
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  RELATIVE DIFFUSIVITIES OF METHANE IN WATER AND CARBON TETRACHLORIDE

  Joel H. Hildebrand

  PNAS December 1, 1969 64 (4) 1329-1330; https://doi.org/10.1073/pnas.64.4.1329
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  THERMODYNAMIC PARAMETERS FOR DISSOLVED GASES

  Joel H. Hildebrand

  PNAS December 1, 1969 64 (4) 1331-1334; https://doi.org/10.1073/pnas.64.4.1331
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  THE NATURE OF GENERAL BASE-GENERAL ACID CATALYSIS IN SERINE PROTEASES

  L. Polgár and Myron L. Bender

  PNAS December 1, 1969 64 (4) 1335-1342; https://doi.org/10.1073/pnas.64.4.1335
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  GLUCOSE UPTAKE BY ISOLATED PARTICLES FROM RAT EPIDIDYMAL ADIPOSE TISSUE CELLS

  James R. Carter Jr. and Donald B. Martin

  PNAS December 1, 1969 64 (4) 1343-1348; https://doi.org/10.1073/pnas.64.4.1343
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  CYCLIC NUCLEOTIDE-DEPENDENT PROTEIN KINASES, IV. WIDESPREAD OCCURRENCE OF ADENOSINE 3′,5′-MONOPHOSPHATE-DEPENDENT PROTEIN KINASE IN VARIOUS TISSUES AND PHYLA OF THE ANIMAL KINGDOM

  J. F. Kuo and Paul Greengard

  PNAS December 1, 1969 64 (4) 1349-1355; https://doi.org/10.1073/pnas.64.4.1349
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  COMPLEMENTARY NUCLEAR RNA'S OF MURINE SARCOMA-LEUKEMIA VIRUS COMPLEX IN TRANSFORMED CELLS

  Nilambar Biswal and Matilda Benyesh-Melnick

  PNAS December 1, 1969 64 (4) 1372-1379; https://doi.org/10.1073/pnas.64.4.1372
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  COMPARISON OF SOLUBLE HUMAN AND MOUSE TRANSPLANTATION ANTIGENS

  Dean L. Mann and Stanley G. Nathenson

  PNAS December 1, 1969 64 (4) 1380-1387; https://doi.org/10.1073/pnas.64.4.1380
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  THE ROLE OF RIBOSOMAL CONFORMATION IN PROTEIN BIOSYNTHESIS: THE STREPTOMYCIN-RIBOSOME INTERACTION

  Michael I. Sherman and Melvin V. Simpson

  PNAS December 1, 1969 64 (4) 1388-1395; https://doi.org/10.1073/pnas.64.4.1388
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  NUCLEAR MAGNETIC RESONANCE STUDIES OF THE STRUCTURE AND BINDING SITES OF ENZYMES, X. PREPARATION OF SELECTIVELY DEUTERATED ANALOGS OF STAPHYLOCOCCAL NUCLEASE

  I. Putter, A. Barreto, J. L. Markley, and O. Jardetzky

  PNAS December 1, 1969 64 (4) 1396-1403; https://doi.org/10.1073/pnas.64.4.1396
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  THE ELECTRON TRANSPORT SYSTEM IN NITROGEN FIXATION BY Azotobacter. II. ISOLATION AND FUNCTION OF A NEW TYPE OF FERREDOXIN

  D. C. Yoch, J. R. Benemann, R. C. Valentine, and Daniel I. Arnon

  PNAS December 1, 1969 64 (4) 1404-1410; https://doi.org/10.1073/pnas.64.4.1404
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  ISOACCEPTING TRANSFER RNA'S OF L-M CELLS IN CULTURE AND AFTER TUMOR INDUCTION IN C₃H MICE

  Wen-Kuang Yang, A. Hellman, D. H. Martin, K. B. Hellman, and G. David Novelli

  PNAS December 1, 1969 64 (4) 1411-1418; https://doi.org/10.1073/pnas.64.4.1411