Table of Contents

Biological Sciences

• Agricultural Sciences

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    Restoring a maize root signal that attracts insect-killing nematodes to control a major pest

    Jörg Degenhardt, Ivan Hiltpold, Tobias G. Köllner, Monika Frey, Alfons Gierl, Jonathan Gershenzon, Bruce E. Hibbard, Mark R. Ellersieck, and Ted C. J. Turlings

    PNAS August 11, 2009 106 (32) 13213-13218; https://doi.org/10.1073/pnas.0906365106

    See companion article:

    • In This Issue

      - Aug 11, 2009

• Anthropology

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    Gourd and squash artifacts yield starch grains of feasting foods from preceramic Peru

    Neil A. Duncan, Deborah M. Pearsall, and Robert A. Benfer Jr.

    PNAS August 11, 2009 106 (32) 13202-13206; https://doi.org/10.1073/pnas.0903322106

• Applied Biological Sciences

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    Connexin 43 as a signaling platform for increasing the volume and spatial distribution of regenerated tissue

    • From the Cover

    Ricardo A. Rosselló, Zhuo Wang, Eddy Kizana, Paul H. Krebsbach, and David H. Kohn

    PNAS August 11, 2009 106 (32) 13219-13224; https://doi.org/10.1073/pnas.0902622106
  • Open Access

    Production of Clostridium difficile toxin in a medium totally free of both animal and dairy proteins or digests

    Aiqi Fang, Donald F. Gerson, and Arnold L. Demain

    PNAS August 11, 2009 106 (32) 13225-13229; https://doi.org/10.1073/pnas.0906425106
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    Inhibition of aac(6′)-Ib-mediated amikacin resistance by nuclease-resistant external guide sequences in bacteria

    Alfonso J. C. Soler Bistué, Fernando A. Martín, Nicolás Vozza, Hongphuc Ha, Jonathan C. Joaquín, Angeles Zorreguieta, and Marcelo E. Tolmasky

    PNAS August 11, 2009 106 (32) 13230-13235; https://doi.org/10.1073/pnas.0906529106

• Biochemistry

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    Histone H3 N-terminus regulates higher order structure of yeast heterochromatin

    • Inaugural Article

    Adam S. Sperling and Michael Grunstein

    PNAS August 11, 2009 106 (32) 13153-13159; https://doi.org/10.1073/pnas.0906866106

    See companion article:

    • Profile of Michael Grunstein

      - Nov 15, 2011
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    DNA-mediated redox signaling for transcriptional activation of SoxR

    Paul E. Lee, Bruce Demple, and Jacqueline K. Barton

    PNAS August 11, 2009 106 (32) 13164-13168; https://doi.org/10.1073/pnas.0906429106
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    Single-molecule analysis reveals that the lagging strand increases replisome processivity but slows replication fork progression

    Nina Y. Yao, Roxana E. Georgescu, Jeff Finkelstein, and Michael E. O'Donnell

    PNAS August 11, 2009 106 (32) 13236-13241; https://doi.org/10.1073/pnas.0906157106

    See companion article:

    • In This Issue

      - Aug 11, 2009
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    Structure of the C-terminal domain of transcription factor IIB from Trypanosoma brucei

    B. Syed Ibrahim, Nalini Kanneganti, Gabrielle E. Rieckhof, Anish Das, Douglas V. Laurents, Jennifer B. Palenchar, Vivian Bellofatto, and David A. Wah

    PNAS August 11, 2009 106 (32) 13242-13247; https://doi.org/10.1073/pnas.0904309106
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    Structure of human Rad51 protein filament from molecular modeling and site-specific linear dichroism spectroscopy

    • From the Cover

    Anna Reymer, Karolin Frykholm, Katsumi Morimatsu, Masayuki Takahashi, and Bengt Nordén

    PNAS August 11, 2009 106 (32) 13248-13253; https://doi.org/10.1073/pnas.0902723106

    See companion article:

    • A new look at the human Rad51 protein

      - Aug 11, 2009
  • Open Access

    The BRC repeats of human BRCA2 differentially regulate RAD51 binding on single- versus double-stranded DNA to stimulate strand exchange

    Mahmud K. K. Shivji, Shreyas R. Mukund, Eeson Rajendra, Shaoxia Chen, Judith M. Short, Jane Savill, David Klenerman, and Ashok R. Venkitaraman

    PNAS August 11, 2009 106 (32) 13254-13259; https://doi.org/10.1073/pnas.0906208106
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    Structural basis for subversion of cellular control mechanisms by the adenoviral E1A oncoprotein

    Josephine C. Ferreon, Maria A. Martinez-Yamout, H. Jane Dyson, and Peter E. Wright

    PNAS August 11, 2009 106 (32) 13260-13265; https://doi.org/10.1073/pnas.0906770106
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    Inhibiting Plasmodium falciparum growth and heme detoxification pathway using heme-binding DNA aptamers

    Jacquin C. Niles, Joseph L. DeRisi, and Michael A. Marletta

    PNAS August 11, 2009 106 (32) 13266-13271; https://doi.org/10.1073/pnas.0906370106
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    The eye lens chaperone α-crystallin forms defined globular assemblies

    Jirka Peschek, Nathalie Braun, Titus M. Franzmann, Yannis Georgalis, Martin Haslbeck, Sevil Weinkauf, and Johannes Buchner

    PNAS August 11, 2009 106 (32) 13272-13277; https://doi.org/10.1073/pnas.0902651106
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    The DNA-gate of Bacillus subtilis gyrase is predominantly in the closed conformation during the DNA supercoiling reaction

    Airat Gubaev, Manuel Hilbert, and Dagmar Klostermeier

    PNAS August 11, 2009 106 (32) 13278-13283; https://doi.org/10.1073/pnas.0902493106
  • Open Access

    Structural analysis of substrate binding by the TatBC component of the twin-arginine protein transport system

    Michael J. Tarry, Eva Schäfer, Shuyun Chen, Grant Buchanan, Nicholas P. Greene, Susan M. Lea, Tracy Palmer, Helen R. Saibil, and Ben C. Berks

    PNAS August 11, 2009 106 (32) 13284-13289; https://doi.org/10.1073/pnas.0901566106
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    Cysteine modification of a specific repressor protein controls the translational status of nucleus-encoded LHCII mRNAs in Chlamydomonas

    Lutz Wobbe, Olga Blifernez, Christian Schwarz, Jan H. Mussgnug, Jörg Nickelsen, and Olaf Kruse

    PNAS August 11, 2009 106 (32) 13290-13295; https://doi.org/10.1073/pnas.0900670106

• Biophysics and Computational Biology

  • Open Access

    The structure of DNA overstretched from the 5′5′ ends differs from the structure of DNA overstretched from the 3′3′ ends

    Claudia Danilowicz, Charles Limouse, Kristi Hatch, Alyson Conover, Vincent W. Coljee, Nancy Kleckner, and Mara Prentiss

    PNAS August 11, 2009 106 (32) 13196-13201; https://doi.org/10.1073/pnas.0904729106
  • Open Access

    Cation specific binding with protein surface charges

    Berk Hess and Nico F. A. van der Vegt

    PNAS August 11, 2009 106 (32) 13296-13300; https://doi.org/10.1073/pnas.0902904106
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    Morphology and interaction between lipid domains

    Tristan S. Ursell, William S. Klug, and Rob Phillips

    PNAS August 11, 2009 106 (32) 13301-13306; https://doi.org/10.1073/pnas.0903825106
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    The titin-telethonin complex is a directed, superstable molecular bond in the muscle Z-disk

    • From the Cover

    Morten Bertz, Matthias Wilmanns, and Matthias Rief

    PNAS August 11, 2009 106 (32) 13307-133310; https://doi.org/10.1073/pnas.0902312106

    See companion article:

    • A new direction for titin pulling

      - Aug 11, 2009
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    Conformational heterogeneity of the M2 proton channel and a structural model for channel activation

    Myunggi Yi, Timothy A. Cross, and Huan-Xiang Zhou

    PNAS August 11, 2009 106 (32) 13311-13316; https://doi.org/10.1073/pnas.0906553106
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    Evidence for heteromorphic chromatin fibers from analysis of nucleosome interactions

    Sergei A. Grigoryev, Gaurav Arya, Sarah Correll, Christopher L. Woodcock, and Tamar Schlick

    PNAS August 11, 2009 106 (32) 13317-13322; https://doi.org/10.1073/pnas.0903280106

• Cell Biology

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    The malarial parasite Plasmodium falciparum imports the human protein peroxiredoxin 2 for peroxide detoxification

    Sasa Koncarevic, Petra Rohrbach, Marcel Deponte, Georg Krohne, Judith Helena Prieto, John Yates III, Stefan Rahlfs, and Katja Becker

    PNAS August 11, 2009 106 (32) 13323-13328; https://doi.org/10.1073/pnas.0905387106
  • Open Access

    Structural basis for a human glycosylation disorder caused by mutation of the COG4 gene

    Brian C. Richardson, Richard D. Smith, Daniel Ungar, Ayumi Nakamura, Philip D. Jeffrey, Vladimir V. Lupashin, and Frederick M. Hughson

    PNAS August 11, 2009 106 (32) 13329-13334; https://doi.org/10.1073/pnas.0901966106
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    NFAT isoforms control activity-dependent muscle fiber type specification

    Elisa Calabria, Stefano Ciciliot, Irene Moretti, Marta Garcia, Anne Picard, Kenneth A. Dyar, Giorgia Pallafacchina, Jana Tothova, Stefano Schiaffino, and Marta Murgia

    PNAS August 11, 2009 106 (32) 13335-13340; https://doi.org/10.1073/pnas.0812911106
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    Rapid formin-mediated actin-filament elongation is essential for polarized plant cell growth

    Luis Vidali, Peter A. C. van Gisbergen, Christophe Guérin, Paula Franco, Ming Li, Graham M. Burkart, Robert C. Augustine, Laurent Blanchoin, and Magdalena Bezanilla

    PNAS August 11, 2009 106 (32) 13341-13346; https://doi.org/10.1073/pnas.0901170106
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    The actin-like MreB cytoskeleton organizes viral DNA replication in bacteria

    Daniel Muñoz-Espín, Richard Daniel, Yoshikazu Kawai, Rut Carballido-López, Virginia Castilla-Llorente, Jeff Errington, Wilfried J. J. Meijer, and Margarita Salas

    PNAS August 11, 2009 106 (32) 13347-13352; https://doi.org/10.1073/pnas.0906465106
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    TR4 nuclear receptor functions as a fatty acid sensor to modulate CD36 expression and foam cell formation

    Shaozhen Xie, Yi-Fen Lee, Eungseok Kim, Lu-Min Chen, Jing Ni, Lei-Ya Fang, Su Liu, Shin-Jen Lin, Jun-ichi Abe, Bradford Berk, Feng-Ming Ho, and Chawnshang Chang

    PNAS August 11, 2009 106 (32) 13353-13358; https://doi.org/10.1073/pnas.0905724106
  • Open Access

    A possible effector role for the pleckstrin homology (PH) domain of dynamin

    Kelley A. Bethoney, Megan C. King, Jenny E. Hinshaw, E. Michael Ostap, and Mark A. Lemmon

    PNAS August 11, 2009 106 (32) 13359-13364; https://doi.org/10.1073/pnas.0906945106

• Developmental Biology

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    Optimized Gal4 genetics for permanent gene expression mapping in zebrafish

    Martin Distel, Mario F. Wullimann, and Reinhard W. Köster

    PNAS August 11, 2009 106 (32) 13365-13370; https://doi.org/10.1073/pnas.0903060106
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    Receptor guanylyl cyclases in Inka cells targeted by eclosion hormone

    Jer-Cherng Chang, Ruey-Bing Yang, Michael E. Adams, and Kuang-Hui Lu

    PNAS August 11, 2009 106 (32) 13371-13376; https://doi.org/10.1073/pnas.0812593106
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    Mouse Kif7/Costal2 is a cilia-associated protein that regulates Sonic hedgehog signaling

    Karel F. Liem Jr, Mu He, Polloneal Jymmiel R. Ocbina, and Kathryn V. Anderson

    PNAS August 11, 2009 106 (32) 13377-13382; https://doi.org/10.1073/pnas.0906944106
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    Muscle stem cell behavior is modified by microRNA-27 regulation of Pax3 expression

    Colin G. Crist, Didier Montarras, Giorgia Pallafacchina, Didier Rocancourt, Ana Cumano, Simon J. Conway, and Margaret Buckingham

    PNAS August 11, 2009 106 (32) 13383-13387; https://doi.org/10.1073/pnas.0900210106

• Ecology

  • Open Access

    Temperature dependence, spatial scale, and tree species diversity in eastern Asia and North America

    Zhiheng Wang, James H. Brown, Zhiyao Tang, and Jingyun Fang

    PNAS August 11, 2009 106 (32) 13388-13392; https://doi.org/10.1073/pnas.0905030106
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    Perturbations to trophic interactions and the stability of complex food webs

    Eoin J. O'Gorman and Mark C. Emmerson

    PNAS August 11, 2009 106 (32) 13393-13398; https://doi.org/10.1073/pnas.0903682106

• Evolution

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    Climate directly influences Eocene mammal faunal dynamics in North America

    Michael O. Woodburne, Gregg F. Gunnell, and Richard K. Stucky

    PNAS August 11, 2009 106 (32) 13399-13403; https://doi.org/10.1073/pnas.0906802106
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    Pleistocene desiccation in East Africa bottlenecked but did not extirpate the adaptive radiation of Lake Victoria haplochromine cichlid fishes

    Kathryn R. Elmer, Chiara Reggio, Thierry Wirth, Erik Verheyen, Walter Salzburger, and Axel Meyer

    PNAS August 11, 2009 106 (32) 13404-13409; https://doi.org/10.1073/pnas.0902299106
  • Open Access

    Nine exceptional radiations plus high turnover explain species diversity in jawed vertebrates

    Michael E. Alfaro, Francesco Santini, Chad Brock, Hugo Alamillo, Alex Dornburg, Daniel L. Rabosky, Giorgio Carnevale, and Luke J. Harmon

    PNAS August 11, 2009 106 (32) 13410-13414; https://doi.org/10.1073/pnas.0811087106
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    The evolutionary origins of beneficial alleles during the repeated adaptation of garter snakes to deadly prey

    Chris R. Feldman, Edmund D. Brodie Jr, Edmund D. Brodie III, and Michael E. Pfrender

    PNAS August 11, 2009 106 (32) 13415-13420; https://doi.org/10.1073/pnas.0901224106
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    Darwinian selection for sites of Asn-linked glycosylation in phylogenetically disparate eukaryotes and viruses

    Jike Cui, Temple Smith, Phillips W. Robbins, and John Samuelson

    PNAS August 11, 2009 106 (32) 13421-13426; https://doi.org/10.1073/pnas.0905818106

• Genetics

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    Drosophila O-GlcNAc transferase (OGT) is encoded by the Polycomb group (PcG) gene, super sex combs (sxc)

    Donald A. R. Sinclair, Monika Syrzycka, Matthew S. Macauley, Tara Rastgardani, Ivana Komljenovic, David J. Vocadlo, Hugh W. Brock, and Barry M. Honda

    PNAS August 11, 2009 106 (32) 13427-13432; https://doi.org/10.1073/pnas.0904638106
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    Epigenetic changes during disease progression in a murine model of human chronic lymphocytic leukemia

    Shih-Shih Chen, Aparna Raval, Amy J. Johnson, Erin Hertlein, Te-Hui Liu, Victor X. Jin, Mara H. Sherman, Shu-Jun Liu, David W. Dawson, Katie E. Williams, Mark Lanasa, Sandya Liyanarachchi, Thomas S. Lin, Guido Marcucci, Yuri Pekarsky, Ramana Davuluri, Carlo M. Croce, Denis C. Guttridge, Michael A. Teitell, John C. Byrd, and Christoph Plass

    PNAS August 11, 2009 106 (32) 13433-13438; https://doi.org/10.1073/pnas.0906455106

• Immunology

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    Expression of GARP selectively identifies activated human FOXP3+ regulatory T cells

    Rui Wang, Lina Kozhaya, Frances Mercer, Alka Khaitan, Hodaka Fujii, and Derya Unutmaz

    PNAS August 11, 2009 106 (32) 13439-13444; https://doi.org/10.1073/pnas.0901965106
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    GARP (LRRC32) is essential for the surface expression of latent TGF-β on platelets and activated FOXP3⁺ regulatory T cells

    Dat Q. Tran, John Andersson, Rui Wang, Heather Ramsey, Derya Unutmaz, and Ethan M. Shevach

    PNAS August 11, 2009 106 (32) 13445-13450; https://doi.org/10.1073/pnas.0901944106
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    Circulating CD21^low B cells in common variable immunodeficiency resemble tissue homing, innate-like B cells

    Mirzokhid Rakhmanov, Baerbel Keller, Sylvia Gutenberger, Christian Foerster, Manfred Hoenig, Gertjan Driessen, Mirjam van der Burg, Jacques J. van Dongen, Elisabeth Wiech, Marcella Visentini, Isabella Quinti, Antje Prasse, Nadine Voelxen, Ulrich Salzer, Sigune Goldacker, Paul Fisch, Hermann Eibel, Klaus Schwarz, Hans-Hartmut Peter, and Klaus Warnatz

    PNAS August 11, 2009 106 (32) 13451-13456; https://doi.org/10.1073/pnas.0901984106
  • Open Access

    A single-cell pedigree analysis of alternative stochastic lymphocyte fates

    E. D. Hawkins, J. F. Markham, L. P. McGuinness, and P. D. Hodgkin

    PNAS August 11, 2009 106 (32) 13457-13462; https://doi.org/10.1073/pnas.0905629106
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    IL-1 family members and STAT activators induce cytokine production by Th2, Th17, and Th1 cells

    Liying Guo, Gang Wei, Jinfang Zhu, Wei Liao, Warren J. Leonard, Keji Zhao, and William Paul

    PNAS August 11, 2009 106 (32) 13463-13468; https://doi.org/10.1073/pnas.0906988106

• Medical Sciences

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    Experimental and clinical evidence of neuroprotection by nerve growth factor eye drops: Implications for glaucoma

    Alessandro Lambiase, Luigi Aloe, Marco Centofanti, Vincenzo Parisi, Flavio Mantelli, Valeria Colafrancesco, Gian Luca Manni, Massimo Gilberto Bucci, Stefano Bonini, and Rita Levi-Montalcini

    PNAS August 11, 2009 106 (32) 13469-13474; https://doi.org/10.1073/pnas.0906678106

    See companion article:

    • In This Issue

      - Aug 11, 2009
  • Open Access

    Fully functional bioengineered tooth replacement as an organ replacement therapy

    • From the Cover

    Etsuko Ikeda, Ritsuko Morita, Kazuhisa Nakao, Kentaro Ishida, Takashi Nakamura, Teruko Takano-Yamamoto, Miho Ogawa, Mitsumasa Mizuno, Shohei Kasugai, and Takashi Tsuji

    PNAS August 11, 2009 106 (32) 13475-13480; https://doi.org/10.1073/pnas.0902944106

    See companion article:

    • In This Issue

      - Aug 11, 2009
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    Aryl hydrocarbon receptor suppresses intestinal carcinogenesis in Apc^Min/+ mice with natural ligands

    Kaname Kawajiri, Yasuhito Kobayashi, Fumiaki Ohtake, Togo Ikuta, Yoshibumi Matsushima, Junsei Mimura, Sven Pettersson, Richard S. Pollenz, Toshiyuki Sakaki, Takatsugu Hirokawa, Tetsu Akiyama, Masafumi Kurosumi, Lorenz Poellinger, Shigeaki Kato, and Yoshiaki Fujii-Kuriyama

    PNAS August 11, 2009 106 (32) 13481-13486; https://doi.org/10.1073/pnas.0902132106
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    Potent neutralization of anthrax edema toxin by a humanized monoclonal antibody that competes with calmodulin for edema factor binding

    Zhaochun Chen, Mahtab Moayeri, Huaying Zhao, Devorah Crown, Stephen H. Leppla, and Robert H. Purcell

    PNAS August 11, 2009 106 (32) 13487-13492; https://doi.org/10.1073/pnas.0906581106
  • Open Access

    CT-X antigen expression in human breast cancer

    Anita Grigoriadis, Otavia L. Caballero, Keith S. Hoek, Leonard da Silva, Yao-Tseng Chen, Sandra J. Shin, Achim A. Jungbluth, Lance D. Miller, David Clouston, Jonathan Cebon, Lloyd J. Old, Sunil R. Lakhani, Andrew J. G. Simpson, and A. Munro Neville

    PNAS August 11, 2009 106 (32) 13493-13498; https://doi.org/10.1073/pnas.0906840106
  • Open Access

    A Burkholderia pseudomallei protein microarray reveals serodiagnostic and cross-reactive antigens

    Philip L. Felgner, Matthew A. Kayala, Adam Vigil, Chad Burk, Rie Nakajima-Sasaki, Jozelyn Pablo, Douglas M. Molina, Siddiqua Hirst, Janet S. W. Chew, Dongling Wang, Gladys Tan, Melanie Duffield, Ron Yang, Julien Neel, Narisara Chantratita, Greg Bancroft, Ganjana Lertmemongkolchai, D. Huw Davies, Pierre Baldi, Sharon Peacock, and Richard W. Titball

    PNAS August 11, 2009 106 (32) 13499-13504; https://doi.org/10.1073/pnas.0812080106
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    The molecular basis for impaired hypoxia-induced VEGF expression in diabetic tissues

    Hariharan Thangarajah, Dachun Yao, Edward I. Chang, Yubin Shi, Leila Jazayeri, Ivan N. Vial, Robert D. Galiano, Xue-Liang Du, Raymon Grogan, Michael G. Galvez, Michael Januszyk, Michael Brownlee, and Geoffrey C. Gurtner

    PNAS August 11, 2009 106 (32) 13505-13510; https://doi.org/10.1073/pnas.0906670106
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    Multiplexed imaging of surface enhanced Raman scattering nanotags in living mice using noninvasive Raman spectroscopy

    Cristina L. Zavaleta, Bryan R. Smith, Ian Walton, William Doering, Glenn Davis, Borzoyeh Shojaei, Michael J. Natan, and Sanjiv S. Gambhir

    PNAS August 11, 2009 106 (32) 13511-13516; https://doi.org/10.1073/pnas.0813327106

• Microbiology

  • Open Access

    Translation and replication of hepatitis C virus genomic RNA depends on ancient cellular proteins that control mRNA fates

    Nicoletta Scheller, Leonardo Bruno Mina, Rui Pedro Galão, Ashwin Chari, Mireia Giménez-Barcons, Amine Noueiry, Utz Fischer, Andreas Meyerhans, and Juana Díez

    PNAS August 11, 2009 106 (32) 13517-13522; https://doi.org/10.1073/pnas.0906413106
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    Modulation of transcription antitermination in the bgl operon of Escherichia coli by the PTS

    Hadas Raveh, Livnat Lopian, Anat Nussbaum-Shochat, Andrew Wright, and Orna Amster-Choder

    PNAS August 11, 2009 106 (32) 13523-13528; https://doi.org/10.1073/pnas.0902559106
  • Open Access

    The kuru infectious agent is a unique geographic isolate distinct from Creutzfeldt–Jakob disease and scrapie agents

    Laura Manuelidis, Trisha Chakrabarty, Kohtaro Miyazawa, Nana-Aba Nduom, and Kaitlin Emmerling

    PNAS August 11, 2009 106 (32) 13529-13534; https://doi.org/10.1073/pnas.0905825106
  • Open Access

    High efficiency of HIV-1 genomic RNA packaging and heterozygote formation revealed by single virion analysis

    Jianbo Chen, Olga Nikolaitchik, Jatinder Singh, Andrew Wright, Craig E. Bencsics, John M. Coffin, Na Ni, Stephen Lockett, Vinay K. Pathak, and Wei-Shau Hu

    PNAS August 11, 2009 106 (32) 13535-13540; https://doi.org/10.1073/pnas.0906822106
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    Negative membrane curvature as a cue for subcellular localization of a bacterial protein

    Kumaran S. Ramamurthi and Richard Losick

    PNAS August 11, 2009 106 (32) 13541-13545; https://doi.org/10.1073/pnas.0906851106
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    Functional equivalence of HMGA- and histone H1-like domains in a bacterial transcriptional factor

    Francisco García-Heras, S. Padmanabhan, Francisco J. Murillo, and Montserrat Elías-Arnanz

    PNAS August 11, 2009 106 (32) 13546-13551; https://doi.org/10.1073/pnas.0902233106
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    Innovations in host and microbial sialic acid biosynthesis revealed by phylogenomic prediction of nonulosonic acid structure

    Amanda L. Lewis, Nolan Desa, Elizabeth E. Hansen, Yuriy A. Knirel, Jeffrey I. Gordon, Pascal Gagneux, Victor Nizet, and Ajit Varki

    PNAS August 11, 2009 106 (32) 13552-13557; https://doi.org/10.1073/pnas.0902431106

• Neuroscience

  • Open Access

    Biophysical mechanisms of phase contrast in gradient echo MRI

    Xiang He and Dmitriy A. Yablonskiy

    PNAS August 11, 2009 106 (32) 13558-13563; https://doi.org/10.1073/pnas.0904899106
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    Postsynaptic Neuroligin1 regulates presynaptic maturation

    Nina Wittenmayer, Christoph Körber, Huisheng Liu, Thomas Kremer, Frederique Varoqueaux, Edwin R. Chapman, Nils Brose, Thomas Kuner, and Thomas Dresbach

    PNAS August 11, 2009 106 (32) 13564-13569; https://doi.org/10.1073/pnas.0905819106
  • Open Access

    Targeting neural precursors in the adult brain rescues injured dopamine neurons

    Andreas Androutsellis-Theotokis, Maria A. Rueger, Deric M. Park, Haik Mkhikian, Erica Korb, Steve W. Poser, Stuart Walbridge, Jeeva Munasinghe, Alan P. Koretsky, Russel R. Lonser, and Ronald D. McKay

    PNAS August 11, 2009 106 (32) 13570-13575; https://doi.org/10.1073/pnas.0905125106
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    Overexpression of SOD-2 reduces hippocampal superoxide and prevents memory deficits in a mouse model of Alzheimer's disease

    Cynthia A. Massaad, Taneasha M. Washington, Robia G. Pautler, and Eric Klann

    PNAS August 11, 2009 106 (32) 13576-13581; https://doi.org/10.1073/pnas.0902714106
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    Stomach ghrelin-secreting cells as food-entrainable circadian clocks

    Joseph LeSauter, Nawshin Hoque, Michael Weintraub, Donald W. Pfaff, and Rae Silver

    PNAS August 11, 2009 106 (32) 13582-13587; https://doi.org/10.1073/pnas.0906426106
  • Open Access

    Gamma and alpha motor neurons distinguished by expression of transcription factor Err3

    Andreas Friese, Julia A. Kaltschmidt, David R. Ladle, Markus Sigrist, Thomas M. Jessell, and Silvia Arber

    PNAS August 11, 2009 106 (32) 13588-13593; https://doi.org/10.1073/pnas.0906809106
  • Open Access

    Neural stem cells improve cognition via BDNF in a transgenic model of Alzheimer disease

    Mathew Blurton-Jones, Masashi Kitazawa, Hilda Martinez-Coria, Nicholas A. Castello, Franz-Josef Müller, Jeanne F. Loring, Tritia R. Yamasaki, Wayne W. Poon, Kim N. Green, and Frank M. LaFerla

    PNAS August 11, 2009 106 (32) 13594-13599; https://doi.org/10.1073/pnas.0901402106
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    Epistasis between the DAT 3′ UTR VNTR and the COMT Val158Met SNP on cortical function in healthy subjects and patients with schizophrenia

    Diana P. Prata, Andrea Mechelli, Cynthia H. Y. Fu, Marco Picchioni, Timothea Toulopoulou, Elvira Bramon, Muriel Walshe, Robin M. Murray, David A. Collier, and Philip McGuire

    PNAS August 11, 2009 106 (32) 13600-13605; https://doi.org/10.1073/pnas.0903007106
  • Open Access

    TRPA channels distinguish gravity sensing from hearing in Johnston's organ

    Yishan Sun, Lei Liu, Yehuda Ben-Shahar, Julie S. Jacobs, Daniel F. Eberl, and Michael J. Welsh

    PNAS August 11, 2009 106 (32) 13606-13611; https://doi.org/10.1073/pnas.0906377106

• Plant Biology

  • You have access

    A plant-specific calreticulin is a key retention factor for a defective brassinosteroid receptor in the endoplasmic reticulum

    • From the Cover

    Hua Jin, Zhi Hong, Wei Su, and Jianming Li

    PNAS August 11, 2009 106 (32) 13612-13617; https://doi.org/10.1073/pnas.0906144106

    See companion article:

    • Calreticulins are not all the same

      - Aug 11, 2009
  • You have access

    The N-end rule pathway controls multiple functions during Arabidopsis shoot and leaf development

    Emmanuelle Graciet, Franziska Walter, Diarmuid Ó Maoiléidigh, Stephan Pollmann, Elliot M. Meyerowitz, Alexander Varshavsky, and Frank Wellmer

    PNAS August 11, 2009 106 (32) 13618-13623; https://doi.org/10.1073/pnas.0906404106
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    Bell-like homeodomain selectively regulates the high-irradiance response of phytochrome A

    Roberto J. Staneloni, María José Rodriguez-Batiller, Danilo Legisa, María R. Scarpin, Adamantia Agalou, Pablo D. Cerdán, Annemarie H. Meijer, Pieter B. F. Ouwerkerk, and Jorge J. Casal

    PNAS August 11, 2009 106 (32) 13624-13629; https://doi.org/10.1073/pnas.0906598106

• Systems Biology

  • Open Access

    Brassinosteroid signaling and auxin transport are required to establish the periodic pattern of Arabidopsis shoot vascular bundles

    Marta Ibañes, Norma Fàbregas, Joanne Chory, and Ana I. Caño-Delgado

    PNAS August 11, 2009 106 (32) 13630-13635; https://doi.org/10.1073/pnas.0906416106