Table of Contents

Biological Sciences

• Biochemistry

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    Plant terpenoid synthases: Molecular biology and phylogenetic analysis

    • Inaugural Article

    Jörg Bohlmann, Gilbert Meyer-Gauen, and Rodney Croteau

    PNAS April 14, 1998 95 (8) 4126-4133; https://doi.org/10.1073/pnas.95.8.4126
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    A dimeric crystal structure for the N-terminal two domains of intercellular adhesion molecule-1

    José M. Casasnovas, Thilo Stehle, Jin-huan Liu, Jia-huai Wang, and Timothy A. Springer

    PNAS April 14, 1998 95 (8) 4134-4139; https://doi.org/10.1073/pnas.95.8.4134
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    The structure of the two amino-terminal domains of human ICAM-1 suggests how it functions as a rhinovirus receptor and as an LFA-1 integrin ligand

    Jordi Bella, Prasanna R. Kolatkar, Christopher W. Marlor, Jeffrey M. Greve, and Michael G. Rossmann

    PNAS April 14, 1998 95 (8) 4140-4145; https://doi.org/10.1073/pnas.95.8.4140
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    Effect of mutating the regulatory phosphoserine and conserved threonine on the activity of the expressed catalytic domain of Acanthamoeba myosin I heavy chain kinase

    Joanna Szczepanowska, Umamaheswari Ramachandran, Christopher J. Herring, James M. Gruschus, Jun Qin, Edward D. Korn, and Hanna Brzeska

    PNAS April 14, 1998 95 (8) 4146-4151; https://doi.org/10.1073/pnas.95.8.4146
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    The C-terminal SET domains of ALL-1 and TRITHORAX interact with the INI1 and SNR1 proteins, components of the SWI/SNF complex

    Orit Rozenblatt–Rosen, Tanya Rozovskaia, Darya Burakov, Yurii Sedkov, Sergei Tillib, Janna Blechman, Tatsuya Nakamura, Carlo M. Croce, Alexander Mazo, and Eli Canaani

    PNAS April 14, 1998 95 (8) 4152-4157; https://doi.org/10.1073/pnas.95.8.4152
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    Role of a critical water in scytalone dehydratase-catalyzed reaction

    Ya-Jun Zheng and Thomas C. Bruice

    PNAS April 14, 1998 95 (8) 4158-4163; https://doi.org/10.1073/pnas.95.8.4158
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    Disruption of cellular translational control by a viral truncated eukaryotic translation initiation factor 2α kinase homolog

    Thomas E. Dever, Rajaraman Sripriya, Jeanne R. McLachlin, Jingfang Lu, John R. Fabian, Scot R. Kimball, and Lois K. Miller

    PNAS April 14, 1998 95 (8) 4164-4169; https://doi.org/10.1073/pnas.95.8.4164
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    Identification of a nucleotide binding site in HIV-1 integrase

    Richard R. Drake, Nouri Neamati, Huixiao Hong, Andre A. Pilon, Prasanna Sunthankar, Steven D. Hume, George W. A. Milne, and Yves Pommier

    PNAS April 14, 1998 95 (8) 4170-4175; https://doi.org/10.1073/pnas.95.8.4170
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    Mass spectrometric and capillary electrophoretic investigation of the enzymatic degradation of heparin-like glycosaminoglycans

    Andrew J. Rhomberg, Steffen Ernst, Ram Sasisekharan, and Klaus Biemann

    PNAS April 14, 1998 95 (8) 4176-4181; https://doi.org/10.1073/pnas.95.8.4176
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    Direct evidence for a predominantly exolytic processive mechanism for depolymerization of heparin-like glycosaminoglycans by heparinase I

    Steffen Ernst, Andrew J. Rhomberg, Klaus Biemann, and Ram Sasisekharan

    PNAS April 14, 1998 95 (8) 4182-4187; https://doi.org/10.1073/pnas.95.8.4182
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    The human U5-200kD DEXH-box protein unwinds U4/U6 RNA duplices in vitro

    Bernhard Laggerbauer, Tilmann Achsel, and Reinhard Lührmann

    PNAS April 14, 1998 95 (8) 4188-4192; https://doi.org/10.1073/pnas.95.8.4188
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    The underlying pathway structure of biochemical reaction networks

    Christophe H. Schilling and Bernhard O. Palsson

    PNAS April 14, 1998 95 (8) 4193-4198; https://doi.org/10.1073/pnas.95.8.4193
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    Control of phosphatidylserine biosynthesis through phosphatidylserine-mediated inhibition of phosphatidylserine synthase I in Chinese hamster ovary cells

    Osamu Kuge, Kazuhide Hasegawa, Kyoko Saito, and Masahiro Nishijima

    PNAS April 14, 1998 95 (8) 4199-4203; https://doi.org/10.1073/pnas.95.8.4199
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    Brefeldin A-inhibited guanine nucleotide-exchange activity of Sec7 domain from yeast Sec7 with yeast and mammalian ADP ribosylation factors

    Makoto Sata, Julie G. Donaldson, Joel Moss, and Martha Vaughan

    PNAS April 14, 1998 95 (8) 4204-4208; https://doi.org/10.1073/pnas.95.8.4204
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    Light-induced expression of fatty acid desaturase genes

    Mihály Kis, Otto Zsiros, Tibor Farkas, Hajime Wada, Ferenc Nagy, and Zoltán Gombos

    PNAS April 14, 1998 95 (8) 4209-4214; https://doi.org/10.1073/pnas.95.8.4209
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    A single-headed dimer of Escherichia coli ribosomal protein L7/L12 supports protein synthesis

    Andrew V. Oleinikov, George G. Jokhadze, and Robert R. Traut

    PNAS April 14, 1998 95 (8) 4215-4218; https://doi.org/10.1073/pnas.95.8.4215
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    Telomere loss in cells treated with cisplatin

    Toru Ishibashi and Stephen J. Lippard

    PNAS April 14, 1998 95 (8) 4219-4223; https://doi.org/10.1073/pnas.95.8.4219
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    Amyloid fibril formation by an SH3 domain

    J. Iñaki Guijarro, Margaret Sunde, Jonathan A. Jones, Iain D. Campbell, and Christopher M. Dobson

    PNAS April 14, 1998 95 (8) 4224-4228; https://doi.org/10.1073/pnas.95.8.4224
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    Manipulation of the membrane binding site of vitamin K-dependent proteins: Enhanced biological function of human factor VII

    Amit M. Shah, Walter Kisiel, Donald C. Foster, and Gary L. Nelsestuen

    PNAS April 14, 1998 95 (8) 4229-4234; https://doi.org/10.1073/pnas.95.8.4229
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    In vivo function of mutated spliced leader RNAs in Caenorhabditis elegans

    Hongying Xie and David Hirsh

    PNAS April 14, 1998 95 (8) 4235-4240; https://doi.org/10.1073/pnas.95.8.4235
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    DnaA-stimulated transcriptional activation of oriλ: Escherichia coli RNA polymerase β subunit as a transcriptional activator contact site

    Agnieszka Szalewska-Palasz, Alicja Wegrzyn, Adam Blaszczak, Karol Taylor, and Grzegorz Wegrzyn

    PNAS April 14, 1998 95 (8) 4241-4246; https://doi.org/10.1073/pnas.95.8.4241
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    A novel glutamine–RNA interaction identified by screening libraries in mammalian cells

    Ruoying Tan and Alan D. Frankel

    PNAS April 14, 1998 95 (8) 4247-4252; https://doi.org/10.1073/pnas.95.8.4247
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    The C terminus of β-tubulin regulates vinblastine-induced tubulin polymerization

    Sadananda S. Rai and J. Wolff

    PNAS April 14, 1998 95 (8) 4253-4257; https://doi.org/10.1073/pnas.95.8.4253
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    Polymerase recognition of synthetic oligodeoxyribonucleotides incorporating degenerate pyrimidine and purine bases

    F. Hill, D. Loakes, and D. M. Brown

    PNAS April 14, 1998 95 (8) 4258-4263; https://doi.org/10.1073/pnas.95.8.4258
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    The TOR (target of rapamycin) signal transduction pathway regulates the stability of translation initiation factor eIF4G in the yeast Saccharomyces cerevisiae

    Catherine Berset, Hans Trachsel, and Michael Altmann

    PNAS April 14, 1998 95 (8) 4264-4269; https://doi.org/10.1073/pnas.95.8.4264
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    Architectural specificity in chromatin structure at the TATA box in vivo: Nucleosome displacement upon β-phaseolin gene activation

    Guofu Li, Simon P. Chandler, Alan P. Wolffe, and Timothy C. Hall

    PNAS April 14, 1998 95 (8) 4772-4777; https://doi.org/10.1073/pnas.95.8.4772

• Biophysics

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    Light-activated rhodopsin induces structural binding motif in G protein α subunit

    Oleg G. Kisselev, Jeff Kao, Jay W. Ponder, Yang C. Fann, N. Gautam, and Garland R. Marshall

    PNAS April 14, 1998 95 (8) 4270-4275; https://doi.org/10.1073/pnas.95.8.4270
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    The role of enzyme distortion in the single displacement mechanism of family 19 chitinases

    Ken A. Brameld and William A. Goddard III

    PNAS April 14, 1998 95 (8) 4276-4281; https://doi.org/10.1073/pnas.95.8.4276
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    Membrane-bound state of the colicin E1 channel domain as an extended two-dimensional helical array

    S. D. Zakharov, M. Lindeberg, Y. Griko, Z. Salamon, G. Tollin, F. G. Prendergast, and W. A. Cramer

    PNAS April 14, 1998 95 (8) 4282-4287; https://doi.org/10.1073/pnas.95.8.4282
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    Brownian dynamics simulations of protein folding: Access to milliseconds time scale and beyond

    Atipat Rojnuckarin, Sangtae Kim, and Shankar Subramaniam

    PNAS April 14, 1998 95 (8) 4288-4292; https://doi.org/10.1073/pnas.95.8.4288
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    Chromophore-assisted light inactivation and self-organization of microtubules and motors

    Thomas Surrey, Michael B. Elowitz, Pierre-Etienne Wolf, Feng Yang, François Nédélec, Kevan Shokat, and Stanislas Leibler

    PNAS April 14, 1998 95 (8) 4293-4298; https://doi.org/10.1073/pnas.95.8.4293
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    Definition of amide protection factors for early kinetic intermediates in protein folding

    Walid A. Houry, J. Michael Sauder, Heinrich Roder, and Harold A. Scheraga

    PNAS April 14, 1998 95 (8) 4299-4302; https://doi.org/10.1073/pnas.95.8.4299
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    Sequence-specific polypeptoids: A diverse family of heteropolymers with stable secondary structure

    Kent Kirshenbaum, Annelise E. Barron, Richard A. Goldsmith, Philippe Armand, Erin K. Bradley, Kiet T. V. Truong, Ken A. Dill, Fred E. Cohen, and Ronald N. Zuckermann

    PNAS April 14, 1998 95 (8) 4303-4308; https://doi.org/10.1073/pnas.95.8.4303
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    NMR determination of the major solution conformation of a peptoid pentamer with chiral side chains

    Philippe Armand, Kent Kirshenbaum, Richard A. Goldsmith, Shauna Farr-Jones, Annelise E. Barron, Kiet T. V. Truong, Ken A. Dill, Dale F. Mierke, Fred E. Cohen, Ronald N. Zuckermann, and Erin K. Bradley

    PNAS April 14, 1998 95 (8) 4309-4314; https://doi.org/10.1073/pnas.95.8.4309
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    The theoretical limits of DNA sequence discrimination by linked polyamides

    Wynn L. Walker, Elliot M. Landaw, Richard E. Dickerson, and David S. Goodsell

    PNAS April 14, 1998 95 (8) 4315-4320; https://doi.org/10.1073/pnas.95.8.4315
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    Translocation of inserted foreign epitopes by a channelforming protein

    Karen S. Jakes, Paul K. Kienker, Stephen L. Slatin, and Alan Finkelstein

    PNAS April 14, 1998 95 (8) 4321-4326; https://doi.org/10.1073/pnas.95.8.4321
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    Simultaneous determination of helical unwinding angles and intrinsic association constants in ligand–DNA complexes: The interaction between DNA and calichearubicin B

    Steven M. Zeman, Kristopher M. Depew, Samuel J. Danishefsky, and Donald M. Crothers

    PNAS April 14, 1998 95 (8) 4327-4332; https://doi.org/10.1073/pnas.95.8.4327

• Cell Biology

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    ADD1/SREBP1 activates PPARγ through the production of endogenous ligand

    Jae Bum Kim, Harold M. Wright, Margaret Wright, and Bruce M. Spiegelman

    PNAS April 14, 1998 95 (8) 4333-4337; https://doi.org/10.1073/pnas.95.8.4333
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    Segregation of viral plasmids depends on tethering to chromosomes and is regulated by phosphorylation

    Chris W. Lehman and Michael R. Botchan

    PNAS April 14, 1998 95 (8) 4338-4343; https://doi.org/10.1073/pnas.95.8.4338
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    Cyclin B2-null mice develop normally and are fertile whereas cyclin B1-null mice die in utero

    Michael Brandeis, Ian Rosewell, Mark Carrington, Tessa Crompton, Mary Ann Jacobs, Jane Kirk, Julian Gannon, and Tim Hunt

    PNAS April 14, 1998 95 (8) 4344-4349; https://doi.org/10.1073/pnas.95.8.4344
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    Human PEX1 cloned by functional complementation on a CHO cell mutant is responsible for peroxisome-deficient Zellweger syndrome of complementation group I

    Shigehiko Tamura, Kanji Okumoto, Ryusuke Toyama, Nobuyuki Shimozawa, Toshiro Tsukamoto, Yasuyuki Suzuki, Takashi Osumi, Naomi Kondo, and Yukio Fujiki

    PNAS April 14, 1998 95 (8) 4350-4355; https://doi.org/10.1073/pnas.95.8.4350
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    Evidence for keratinocyte stem cells in vitro: Long term engraftment and persistence of transgene expression from retrovirus-transduced keratinocytes

    Taduesz M. Kolodka, Jonathan A. Garlick, and Lorne B. Taichman

    PNAS April 14, 1998 95 (8) 4356-4361; https://doi.org/10.1073/pnas.95.8.4356
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    Dynamics of contacts between lamellae of fibroblasts: Essential role of the actin cytoskeleton

    N. A. Gloushankova, M. F. Krendel, N. O. Alieva, E. M. Bonder, H. H. Feder, J. M. Vasiliev, and I. M. Gelfand

    PNAS April 14, 1998 95 (8) 4362-4367; https://doi.org/10.1073/pnas.95.8.4362
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    Plant nuclear gene knockout reveals a role in plastid division for the homolog of the bacterial cell division protein FtsZ, an ancestral tubulin

    René Strepp, Sirkka Scholz, Sven Kruse, Volker Speth, and Ralf Reski

    PNAS April 14, 1998 95 (8) 4368-4373; https://doi.org/10.1073/pnas.95.8.4368
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    Cell adhesion and the integrin-linked kinase regulate the LEF-1 and β-catenin signaling pathways

    Anton Novak, Shu-Chi Hsu, Chungyee Leung-Hagesteijn, Galina Radeva, Jackie Papkoff, Roberto Montesano, Calvin Roskelley, Rudolf Grosschedl, and Shoukat Dedhar

    PNAS April 14, 1998 95 (8) 4374-4379; https://doi.org/10.1073/pnas.95.8.4374
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    Translation of cytochrome f is autoregulated through the 5′ untranslated region of petA mRNA in Chlamydomonas chloroplasts

    Y. Choquet, D. B. Stern, K. Wostrikoff, R. Kuras, J. Girard-Bascou, and F.-A. Wollman

    PNAS April 14, 1998 95 (8) 4380-4385; https://doi.org/10.1073/pnas.95.8.4380
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    Bcl-X_L interacts with Apaf-1 and inhibits Apaf-1-dependent caspase-9 activation

    Yuanming Hu, Mary A. Benedict, Dayang Wu, Naohiro Inohara, and Gabriel Núñez

    PNAS April 14, 1998 95 (8) 4386-4391; https://doi.org/10.1073/pnas.95.8.4386
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    Essential role of germinal vesicle material in the meiotic cell cycle of Xenopus oocytes

    Jun Iwashita, Yoshimasa Hayano, and Noriyuki Sagata

    PNAS April 14, 1998 95 (8) 4392-4397; https://doi.org/10.1073/pnas.95.8.4392

• Developmental Biology

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    Cooperation between the activin and Wnt pathways in the spatial control of organizer gene expression

    Devanand J. Crease, Steven Dyson, and J. B. Gurdon

    PNAS April 14, 1998 95 (8) 4398-4403; https://doi.org/10.1073/pnas.95.8.4398
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    The identification of a 9-cis retinol dehydrogenase in the mouse embryo reveals a pathway for synthesis of 9-cis retinoic acid

    Anna Romert, Paulina Tuvendal, Andràs Simon, Lennart Dencker, and Ulf Eriksson

    PNAS April 14, 1998 95 (8) 4404-4409; https://doi.org/10.1073/pnas.95.8.4404

• Ecology

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    When defense backfires: Detrimental effect of a plant’s protective trichomes on an insect beneficial to the plant

    Thomas Eisner, Maria Eisner, and E. Richard Hoebeke

    PNAS April 14, 1998 95 (8) 4410-4414; https://doi.org/10.1073/pnas.95.8.4410

• Evolution

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    The location of Z- and W-linked marker genes and sequence on the homomorphic sex chromosomes of the ostrich and the emu

    Akira Ogawa, Koichi Murata, and Shigeki Mizuno

    PNAS April 14, 1998 95 (8) 4415-4418; https://doi.org/10.1073/pnas.95.8.4415
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    Polyploid formation created unique avenues for response to selection in Gossypium (cotton)

    Chun-xiao Jiang, Robert J. Wright, Kamal M. El-Zik, and Andrew H. Paterson

    PNAS April 14, 1998 95 (8) 4419-4424; https://doi.org/10.1073/pnas.95.8.4419
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    Malaria’s Eve: Evidence of a recent population bottleneck throughout the world populations of Plasmodium falciparum

    Stephen M. Rich, Monica C. Licht, Richard R. Hudson, and Francisco J. Ayala

    PNAS April 14, 1998 95 (8) 4425-4430; https://doi.org/10.1073/pnas.95.8.4425
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    Female preference for swords in Xiphophorus helleri reflects a bias for large apparent size

    Gil G. Rosenthal and Christopher S. Evans

    PNAS April 14, 1998 95 (8) 4431-4436; https://doi.org/10.1073/pnas.95.8.4431
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    Gene number in an invertebrate chordate, Ciona intestinalis

    Martin W. Simmen, Sabine Leitgeb, Victoria H. Clark, Steven J. M. Jones, and Adrian Bird

    PNAS April 14, 1998 95 (8) 4437-4440; https://doi.org/10.1073/pnas.95.8.4437
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    Investigation of the bottleneck leading to the domestication of maize

    Adam Eyre-Walker, Rebecca L. Gaut, Holly Hilton, Dawn L. Feldman, and Brandon S. Gaut

    PNAS April 14, 1998 95 (8) 4441-4446; https://doi.org/10.1073/pnas.95.8.4441
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    Extent of genomic rearrangement after genome duplication in yeast

    Cathal Seoighe and Kenneth H. Wolfe

    PNAS April 14, 1998 95 (8) 4447-4452; https://doi.org/10.1073/pnas.95.8.4447
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    Instability of signaling resolution models of parent–offspring conflict

    Miguel A. Rodríguez-Gironés, Magnus Enquist, and Peter A. Cotton

    PNAS April 14, 1998 95 (8) 4453-4457; https://doi.org/10.1073/pnas.95.8.4453
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    Deleterious mutations destabilize ribosomal RNA in endosymbiotic bacteria

    J. David Lambert and Nancy A. Moran

    PNAS April 14, 1998 95 (8) 4458-4462; https://doi.org/10.1073/pnas.95.8.4458

• Genetics

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    The lethal mutation of the mouse wasted (wst) is a deletion that abolishes expression of a tissue-specific isoform of translation elongation factor 1α, encoded by the Eef1a2 gene

    Doreen M. Chambers, Josephine Peters, and Catherine M. Abbott

    PNAS April 14, 1998 95 (8) 4463-4468; https://doi.org/10.1073/pnas.95.8.4463
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    Functional copies of a human gene can be directly isolated by transformation-associated recombination cloning with a small 3′ end target sequence

    Natalay Kouprina, Lois Annab, Joan Graves, Cynthia Afshari, J. Carl Barrett, Michael A. Resnick, and Vladimir Larionov

    PNAS April 14, 1998 95 (8) 4469-4474; https://doi.org/10.1073/pnas.95.8.4469
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    Molecular coevolution within a Drosophila clock gene

    Alexandre A. Peixoto, J. Michael Hennessy, Ian Townson, Gaiti Hasan, Michael Rosbash, Rodolfo Costa, and Charalambos P. Kyriacou

    PNAS April 14, 1998 95 (8) 4475-4480; https://doi.org/10.1073/pnas.95.8.4475
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    Impaired fetal T cell development and perinatal lethality in mice lacking the cAMP response element binding protein

    Dorothea Rudolph, Anna Tafuri, Peter Gass, Günter J. Hämmerling, Bernd Arnold, and Günther Schütz

    PNAS April 14, 1998 95 (8) 4481-4486; https://doi.org/10.1073/pnas.95.8.4481
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    Genetic analysis using genomic representations

    Robert Lucito, Mariko Nakimura, Joseph A. West, Ying Han, Koei Chin, Kendall Jensen, Richard McCombie, Joe W. Gray, and Michael Wigler

    PNAS April 14, 1998 95 (8) 4487-4492; https://doi.org/10.1073/pnas.95.8.4487

• Immunology

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    Disruption of the CD4–major histocompatibility complex class II interaction blocks the development of CD4⁺ T cells in vivo

    Janice M. Riberdy, Elahe Mostaghel, and Carolyn Doyle

    PNAS April 14, 1998 95 (8) 4493-4498; https://doi.org/10.1073/pnas.95.8.4493
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    Unique molecular surface features of in vivo tolerized T cells

    Curtis C. Maier, Avinash Bhandoola, William Borden, Katsuyuki Yui, Kyoko Hayakawa, and Mark I. Greene

    PNAS April 14, 1998 95 (8) 4499-4503; https://doi.org/10.1073/pnas.95.8.4499
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    Immune regulation by the ST6Gal sialyltransferase

    Thierry Hennet, Daniel Chui, James C. Paulson, and Jamey D. Marth

    PNAS April 14, 1998 95 (8) 4504-4509; https://doi.org/10.1073/pnas.95.8.4504
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    HLA-G expression in melanoma: A way for tumor cells to escape from immunosurveillance

    Pascale Paul, Nathalie Rouas-Freiss, Iman Khalil-Daher, Philippe Moreau, Beatrice Riteau, Frederique Anne Le Gal, Marie Francoise Avril, Jean Dausset, Jean Gerard Guillet, and Edgardo D. Carosella

    PNAS April 14, 1998 95 (8) 4510-4515; https://doi.org/10.1073/pnas.95.8.4510
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    Cathepsins B and D are dispensable for major histocompatibility complex class II-mediated antigen presentation

    Jan Deussing, Wera Roth, Paul Saftig, Christoph Peters, Hidde L. Ploegh, and José A. Villadangos

    PNAS April 14, 1998 95 (8) 4516-4521; https://doi.org/10.1073/pnas.95.8.4516
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    T cell positive selection by a high density, low affinity ligand

    Chih-Pin Liu, Frances Crawford, Philippa Marrack, and John Kappler

    PNAS April 14, 1998 95 (8) 4522-4526; https://doi.org/10.1073/pnas.95.8.4522
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    Copresentation of natural HIV-1 agonist and antagonist ligands fails to induce the T cell receptor signaling cascade

    Marco A. Purbhoo, Andrew K. Sewell, Paul Klenerman, Philip J. R. Goulder, Katherine L. Hilyard, John I. Bell, Bent K. Jakobsen, and Rodney E. Phillips

    PNAS April 14, 1998 95 (8) 4527-4532; https://doi.org/10.1073/pnas.95.8.4527
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    T cell vaccination induces T cell receptor Vβ-specific Qa-1-restricted regulatory CD8⁺ T cells

    Hong Jiang, Helena Kashleva, Li-Xing Xu, James Forman, Lorraine Flaherty, Benvenuto Pernis, Ned S. Braunstein, and Leonard Chess

    PNAS April 14, 1998 95 (8) 4533-4537; https://doi.org/10.1073/pnas.95.8.4533
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    Alloantigen-induced unresponsiveness in cord blood T lymphocytes is associated with defective activation of Ras

    Pierluigi Porcu, Jay Gaddy, and Hal E. Broxmeyer

    PNAS April 14, 1998 95 (8) 4538-4543; https://doi.org/10.1073/pnas.95.8.4538

• Medical Sciences

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    Low density lipoprotein receptor-negative mice expressing human apolipoprotein B-100 develop complex atherosclerotic lesions on a chow diet: No accentuation by apolipoprotein(a)

    D. A. Sanan, D. L. Newland, R. Tao, S. Marcovina, J. Wang, V. Mooser, R. E. Hammer, and H. H. Hobbs

    PNAS April 14, 1998 95 (8) 4544-4549; https://doi.org/10.1073/pnas.95.8.4544
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    Selective killing of preneoplastic and neoplastic cells by methotrexate with leucovorin

    Ming Chow and Harry Rubin

    PNAS April 14, 1998 95 (8) 4550-4555; https://doi.org/10.1073/pnas.95.8.4550
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    Overexpression of human copper,zinc-superoxide dismutase (SOD1) prevents postischemic injury

    Penghai Wang, Hua Chen, Honghua Qin, Sornampillai Sankarapandi, Mark W. Becher, Philip C. Wong, and Jay L. Zweier

    PNAS April 14, 1998 95 (8) 4556-4560; https://doi.org/10.1073/pnas.95.8.4556
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    The tetravalent guanylhydrazone CNI-1493 blocks the toxic effects of interleukin-2 without diminishing antitumor efficacy

    M. Margaret Kemeny, Galina I. Botchkina, Mahander Ochani, Marina Bianchi, Carlos Urmacher, and Kevin J. Tracey

    PNAS April 14, 1998 95 (8) 4561-4566; https://doi.org/10.1073/pnas.95.8.4561
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    Activating mutations in the extracellular domain of the fibroblast growth factor receptor 2 function by disruption of the disulfide bond in the third immunoglobulin-like domain

    Scott C. Robertson, April N. Meyer, Kristen C. Hart, Brendan D. Galvin, Melanie K. Webster, and Daniel J. Donoghue

    PNAS April 14, 1998 95 (8) 4567-4572; https://doi.org/10.1073/pnas.95.8.4567
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    Identification and characterization of the ARP1 gene, a target for the human acute leukemia ALL1 gene

    Hirofumi Arakawa, Tatsuya Nakamura, Alexander B. Zhadanov, Vincenzo Fidanza, Takahiro Yano, Florencia Bullrich, Masayoshi Shimizu, Janna Blechman, Alexander Mazo, Eli Canaani, and Carlo M. Croce

    PNAS April 14, 1998 95 (8) 4573-4578; https://doi.org/10.1073/pnas.95.8.4573
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    Chimeric anti-angiogenin antibody cAb 26–2F inhibits the formation of human breast cancer xenografts in athymic mice

    Renata Piccoli, Karen A. Olson, Bert L. Vallee, and James W. Fett

    PNAS April 14, 1998 95 (8) 4579-4583; https://doi.org/10.1073/pnas.95.8.4579
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    Fetal origins of the TEL-AML1 fusion gene in identical twins with leukemia

    Anthony M. Ford, Caroline A. Bennett, Cathy M. Price, M. C. A. Bruin, Elisabeth R. Van Wering, and Mel Greaves

    PNAS April 14, 1998 95 (8) 4584-4588; https://doi.org/10.1073/pnas.95.8.4584
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    Detection and characterization of carcinoma cells in the blood

    Emilian Racila, David Euhus, Arthur J. Weiss, Chandra Rao, John McConnell, Leon W. M. M. Terstappen, and Jonathan W. Uhr

    PNAS April 14, 1998 95 (8) 4589-4594; https://doi.org/10.1073/pnas.95.8.4589
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    Extracellular HIV-1 virus protein R causes a large inward current and cell death in cultured hippocampal neurons: Implications for AIDS pathology

    Sabine C. Piller, Patricia Jans, Peter W. Gage, and David A. Jans

    PNAS April 14, 1998 95 (8) 4595-4600; https://doi.org/10.1073/pnas.95.8.4595
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    Different mechanisms for suppression of apoptosis by cytokines and calcium mobilizing compounds

    Joseph Lotem and Leo Sachs

    PNAS April 14, 1998 95 (8) 4601-4606; https://doi.org/10.1073/pnas.95.8.4601
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    Regulation of transport pathways in tumor vessels: Role of tumor type and microenvironment

    Susan K. Hobbs, Wayne L. Monsky, Fan Yuan, W. Gregory Roberts, Linda Griffith, Vladimir P. Torchilin, and Rakesh K. Jain

    PNAS April 14, 1998 95 (8) 4607-4612; https://doi.org/10.1073/pnas.95.8.4607
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    Direct adenovirus-mediated gene transfer of interleukin 1 and tumor necrosis factor α soluble receptors to rabbit knees with experimental arthritis has local and distal anti-arthritic effects

    Steven C. Ghivizzani, Eric R. Lechman, Richard Kang, Caroline Tio, Jay Kolls, Christopher H. Evans, and Paul D. Robbins

    PNAS April 14, 1998 95 (8) 4613-4618; https://doi.org/10.1073/pnas.95.8.4613
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    Targeted mutation reveals a central role for SR-BI in hepatic selective uptake of high density lipoprotein cholesterol

    Mariet Lee Varban, Franz Rinninger, Nan Wang, Victoria Fairchild-Huntress, Judy H. Dunmore, Qing Fang, Michael L. Gosselin, Kristen L. Dixon, James D. Deeds, Susan L. Acton, Alan R. Tall, and Dennis Huszar

    PNAS April 14, 1998 95 (8) 4619-4624; https://doi.org/10.1073/pnas.95.8.4619
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    An antagonistic vascular endothelial growth factor (VEGF) variant inhibits VEGF-stimulated receptor autophosphorylation and proliferation of human endothelial cells

    Gerhard Siemeister, Michael Schirner, Petra Reusch, Bernhard Barleon, Dieter Marmé, and Georg Martiny-Baron

    PNAS April 14, 1998 95 (8) 4625-4629; https://doi.org/10.1073/pnas.95.8.4625
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    Breakers of advanced glycation end products restore large artery properties in experimental diabetes

    Bruce H. R. Wolffenbuttel, Chantal M. Boulanger, Francy R. L. Crijns, Maya S. P. Huijberts, Pierre Poitevin, Geertje N. M. Swennen, Sara Vasan, John J. Egan, Peter Ulrich, Anthony Cerami, and Bernard I. Lévy

    PNAS April 14, 1998 95 (8) 4630-4634; https://doi.org/10.1073/pnas.95.8.4630
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    In vivo evidence that erythropoietin protects neurons from ischemic damage

    Masahiro Sakanaka, Tong-Chun Wen, Seiji Matsuda, Seiji Masuda, Emi Morishita, Masaya Nagao, and Ryuzo Sasaki

    PNAS April 14, 1998 95 (8) 4635-4640; https://doi.org/10.1073/pnas.95.8.4635

• Microbiology

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    Differential patterns of acquired virulence genes distinguish Salmonella strains

    Christopher P. Conner, Douglas M. Heithoff, Steven M. Julio, Robert L. Sinsheimer, and Michael J. Mahan

    PNAS April 14, 1998 95 (8) 4641-4645; https://doi.org/10.1073/pnas.95.8.4641
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    NF-κB-dependent inhibition of apoptosis is essential for host cell survival during Rickettsia rickettsii infection

    Dawn R. Clifton, Rachel A. Goss, Sanjeev K. Sahni, Daniel van Antwerp, Raymond B. Baggs, Victor J. Marder, David J. Silverman, and Lee Ann Sporn

    PNAS April 14, 1998 95 (8) 4646-4651; https://doi.org/10.1073/pnas.95.8.4646
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    Bipolar localization of Bacillus subtilis topoisomerase IV, an enzyme required for chromosome segregation

    Wai Mun Huang, Jane L. Libbey, Petra van der Hoeven, and Shelly Xiaohong Yu

    PNAS April 14, 1998 95 (8) 4652-4657; https://doi.org/10.1073/pnas.95.8.4652

• Neurobiology

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    Latent varicella–zoster virus is located predominantly in neurons in human trigeminal ganglia

    Peter G. E. Kennedy, Esther Grinfeld, and John W. Gow

    PNAS April 14, 1998 95 (8) 4658-4662; https://doi.org/10.1073/pnas.95.8.4658
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    Functions of the two glutamate transporters GLAST and GLT-1 in the retina

    Takayuki Harada, Chikako Harada, Masahiko Watanabe, Yoshiro Inoue, Takashi Sakagawa, Naoki Nakayama, Shoji Sasaki, Shigeru Okuyama, Kei Watase, Keiji Wada, and Kohichi Tanaka

    PNAS April 14, 1998 95 (8) 4663-4666; https://doi.org/10.1073/pnas.95.8.4663
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    A third member of the synapsin gene family

    Hung-Teh Kao, Barbara Porton, Andrew J. Czernik, Jian Feng, Glenn Yiu, Monika Häring, Fabio Benfenati, and Paul Greengard

    PNAS April 14, 1998 95 (8) 4667-4672; https://doi.org/10.1073/pnas.95.8.4667
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    Src interacts with dynamin and synapsin in neuronal cells

    Audrey Foster-Barber and J. Michael Bishop

    PNAS April 14, 1998 95 (8) 4673-4677; https://doi.org/10.1073/pnas.95.8.4673
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    Dehydroepiandrosterone: A potential signalling molecule for neocortical organization during development

    Nathalie A. Compagnone and Synthia H. Mellon

    PNAS April 14, 1998 95 (8) 4678-4683; https://doi.org/10.1073/pnas.95.8.4678
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    Submicrosecond pacemaker precision is behaviorally modulated: The gymnotiform electromotor pathway

    Katherine T. Moortgat, Clifford H. Keller, Theodore H. Bullock, and Terrence J. Sejnowski

    PNAS April 14, 1998 95 (8) 4684-4689; https://doi.org/10.1073/pnas.95.8.4684
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    Unique regulatory properties of the type 2a Ca²⁺ channel β subunit caused by palmitoylation

    Ning Qin, Daniela Platano, Riccardo Olcese, James L. Costantin, Enrico Stefani, and Lutz Birnbaumer

    PNAS April 14, 1998 95 (8) 4690-4695; https://doi.org/10.1073/pnas.95.8.4690
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    An isoform of the rod photoreceptor cyclic nucleotide-gated channel β subunit expressed in olfactory neurons

    Andrea Sautter, Xiangang Zong, Franz Hofmann, and Martin Biel

    PNAS April 14, 1998 95 (8) 4696-4701; https://doi.org/10.1073/pnas.95.8.4696
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    Long-term potentiation and dual-component quantal signaling in the dentate gyrus

    Ming-Yuan Min, Fredrik Asztely, Merab Kokaia, and Dimitri M. Kullmann

    PNAS April 14, 1998 95 (8) 4702-4707; https://doi.org/10.1073/pnas.95.8.4702
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    Region-dependent dynamics of cAMP response element-binding protein phosphorylation in the basal ganglia

    Fu-Chin Liu and Ann M. Graybiel

    PNAS April 14, 1998 95 (8) 4708-4713; https://doi.org/10.1073/pnas.95.8.4708
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    Social stress results in altered glucocorticoid regulation and shorter survival in simian acquired immune deficiency syndrome

    John P. Capitanio, Sally P. Mendoza, Nicholas W. Lerche, and William A. Mason

    PNAS April 14, 1998 95 (8) 4714-4719; https://doi.org/10.1073/pnas.95.8.4714
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    R-type Ca²⁺ currents evoke transmitter release at a rat central synapse

    Ling-Gang Wu, J. Gerard G. Borst, and Bert Sakmann

    PNAS April 14, 1998 95 (8) 4720-4725; https://doi.org/10.1073/pnas.95.8.4720
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    Developmental emergence of different forms of neuromodulation in Aplysia sensory neurons

    Emilie A. Marcus and Thomas J. Carew

    PNAS April 14, 1998 95 (8) 4726-4731; https://doi.org/10.1073/pnas.95.8.4726
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    All-or-none potentiation at CA3-CA1 synapses

    Carl C. H. Petersen, Robert C. Malenka, Roger A. Nicoll, and John J. Hopfield

    PNAS April 14, 1998 95 (8) 4732-4737; https://doi.org/10.1073/pnas.95.8.4732

• Pharmacology

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    Hypotension and inflammatory cytokine gene expression triggered by factor Xa–nitric oxide signaling

    Andreas Papapetropoulos, Paola Piccardoni, Giuseppe Cirino, Mariarosaria Bucci, Raffaella Sorrentino, Carla Cicala, Kirk Johnson, Venetia Zachariou, William C. Sessa, and Dario C. Altieri

    PNAS April 14, 1998 95 (8) 4738-4742; https://doi.org/10.1073/pnas.95.8.4738

• Physiology

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    Stimulation of renin secretion by nitric oxide is mediated by phosphodiesterase 3

    Armin Kurtz, Karl-Heinz Götz, Marlies Hamann, and Charlotte Wagner

    PNAS April 14, 1998 95 (8) 4743-4747; https://doi.org/10.1073/pnas.95.8.4743
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    Cardiac arrest in rodents: Maximal duration compatible with a recovery of neuronal activity

    S. Charpak and E. Audinat

    PNAS April 14, 1998 95 (8) 4748-4753; https://doi.org/10.1073/pnas.95.8.4748
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    Xanthine oxidase activity associated with arterial blood pressure in spontaneously hypertensive rats

    Hidekazu Suzuki, Frank A. DeLano, Dale A. Parks, Neema Jamshidi, D. Neil Granger, Hiromasa Ishii, Makoto Suematsu, Benjamin W. Zweifach, and Geert W. Schmid-Schönbein

    PNAS April 14, 1998 95 (8) 4754-4759; https://doi.org/10.1073/pnas.95.8.4754
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    Role of substance P and the neurokinin 1 receptor in acute pancreatitis and pancreatitis-associated lung injury

    Madhav Bhatia, Ashok K. Saluja, Bernd Hofbauer, Jean-Louis Frossard, Hong Sik Lee, Ignazio Castagliuolo, Chi-Chung Wang, Norma Gerard, Charalabos Pothoulakis, and Michael L. Steer

    PNAS April 14, 1998 95 (8) 4760-4765; https://doi.org/10.1073/pnas.95.8.4760

• Plant Biology

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    Recessive and dominant mutations in the ethylene biosynthetic gene ACS5 of Arabidopsis confer cytokinin insensitivity and ethylene overproduction, respectively

    John P. Vogel, Keith E. Woeste, Athanasios Theologis, and Joseph J. Kieber

    PNAS April 14, 1998 95 (8) 4766-4771; https://doi.org/10.1073/pnas.95.8.4766
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    Architectural specificity in chromatin structure at the TATA box in vivo: Nucleosome displacement upon β-phaseolin gene activation

    Guofu Li, Simon P. Chandler, Alan P. Wolffe, and Timothy C. Hall

    PNAS April 14, 1998 95 (8) 4772-4777; https://doi.org/10.1073/pnas.95.8.4772
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    Membrane voltage initiates Ca²⁺ waves and potentiates Ca²⁺ increases with abscisic acid in stomatal guard cells

    Alexander Grabov and Michael R. Blatt

    PNAS April 14, 1998 95 (8) 4778-4783; https://doi.org/10.1073/pnas.95.8.4778
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    Sucrose is a signal molecule in assimilate partitioning

    Tzyy-Jen Chiou and Daniel R. Bush

    PNAS April 14, 1998 95 (8) 4784-4788; https://doi.org/10.1073/pnas.95.8.4784