Table of Contents

Biological Sciences

• Agricultural Sciences

  • Open Access

    Infection with a plant virus modifies vector feeding behavior

    Candice A. Stafford, Gregory P. Walker, and Diane E. Ullman

    PNAS June 7, 2011 108 (23) 9350-9355; https://doi.org/10.1073/pnas.1100773108

• Anthropology

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    Diet of Paranthropus boisei in the early Pleistocene of East Africa

    • From the Cover

    Thure E. Cerling, Emma Mbua, Francis M. Kirera, Fredrick Kyalo Manthi, Frederick E. Grine, Meave G. Leakey, Matt Sponheimer, and Kevin T. Uno

    PNAS June 7, 2011 108 (23) 9337-9341; https://doi.org/10.1073/pnas.1104627108

• Applied Biological Sciences

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    The hummingbird tongue is a fluid trap, not a capillary tube

    • From the Cover

    Alejandro Rico-Guevara and Margaret A. Rubega

    PNAS June 7, 2011 108 (23) 9356-9360; https://doi.org/10.1073/pnas.1016944108

• Biochemistry

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    Crystal structure of lactose permease in complex with an affinity inactivator yields unique insight into sugar recognition

    Vincent Chaptal, Seunghyug Kwon, Michael R. Sawaya, Lan Guan, H. Ronald Kaback, and Jeff Abramson

    PNAS June 7, 2011 108 (23) 9361-9366; https://doi.org/10.1073/pnas.1105687108
  • Open Access

    Recognition of the centromere-specific histone Cse4 by the chaperone Scm3

    Uhn-Soo Cho and Stephen C. Harrison

    PNAS June 7, 2011 108 (23) 9367-9371; https://doi.org/10.1073/pnas.1106389108
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    Helicase-DNA polymerase interaction is critical to initiate leading-strand DNA synthesis

    Huidong Zhang, Seung-Joo Lee, Bin Zhu, Ngoc Q. Tran, Stanley Tabor, and Charles C. Richardson

    PNAS June 7, 2011 108 (23) 9372-9377; https://doi.org/10.1073/pnas.1106678108
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    Naturally occurring aminoacyl-tRNA synthetases editing-domain mutations that cause mistranslation in Mycoplasma parasites

    Li Li, Michal T. Boniecki, Jacob D. Jaffe, Brian S. Imai, Peter M. Yau, Zaida A. Luthey-Schulten, and Susan A. Martinis

    PNAS June 7, 2011 108 (23) 9378-9383; https://doi.org/10.1073/pnas.1016460108
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    Structure of a bacterial cell surface decaheme electron conduit

    Thomas A. Clarke, Marcus J. Edwards, Andrew J. Gates, Andrea Hall, Gaye F. White, Justin Bradley, Catherine L. Reardon, Liang Shi, Alexander S. Beliaev, Matthew J. Marshall, Zheming Wang, Nicholas J. Watmough, James K. Fredrickson, John M. Zachara, Julea N. Butt, and David J. Richardson

    PNAS June 7, 2011 108 (23) 9384-9389; https://doi.org/10.1073/pnas.1017200108
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    Core unit of chemotaxis signaling complexes

    Mingshan Li and Gerald L. Hazelbauer

    PNAS June 7, 2011 108 (23) 9390-9395; https://doi.org/10.1073/pnas.1104824108
  • Open Access

    Photosynthetic electron partitioning between [FeFe]-hydrogenase and ferredoxin:NADP⁺-oxidoreductase (FNR) enzymes in vitro

    Iftach Yacoby, Sergii Pochekailov, Hila Toporik, Maria L. Ghirardi, Paul W. King, and Shuguang Zhang

    PNAS June 7, 2011 108 (23) 9396-9401; https://doi.org/10.1073/pnas.1103659108

• Biophysics and Computational Biology

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    Kinetics of cyclobutane thymine dimer splitting by DNA photolyase directly monitored in the UV

    Viruthachalam Thiagarajan, Martin Byrdin, André P. M. Eker, Pavel Müller, and Klaus Brettel

    PNAS June 7, 2011 108 (23) 9402-9407; https://doi.org/10.1073/pnas.1101026108
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    Active multistage coarsening of actin networks driven by myosin motors

    Marina Soares e Silva, Martin Depken, Björn Stuhrmann, Marijn Korsten, Fred C. MacKintosh, and Gijsje H. Koenderink

    PNAS June 7, 2011 108 (23) 9408-9413; https://doi.org/10.1073/pnas.1016616108
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    Dynamics of enzymatic digestion of elastic fibers and networks under tension

    Ascânio D. Araújo, Arnab Majumdar, Harikrishnan Parameswaran, Eunice Yi, Jean L. Spencer, Matthew A. Nugent, and Béla Suki

    PNAS June 7, 2011 108 (23) 9414-9419; https://doi.org/10.1073/pnas.1019188108
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    Interaction of a G protein with an activated receptor opens the interdomain interface in the alpha subunit

    Ned Van Eps, Anita M. Preininger, Nathan Alexander, Ali I. Kaya, Scott Meier, Jens Meiler, Heidi E. Hamm, and Wayne L. Hubbell

    PNAS June 7, 2011 108 (23) 9420-9424; https://doi.org/10.1073/pnas.1105810108
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    Relating domain size distribution to line tension and molecular dipole density in model cytoplasmic myelin lipid monolayers

    Dong Woog Lee, Younjin Min, Prajnaparamitra Dhar, Arun Ramachandran, Jacob N. Israelachvili, and Joseph A. Zasadzinski

    PNAS June 7, 2011 108 (23) 9425-9430; https://doi.org/10.1073/pnas.1106368108
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    Forming giant vesicles with controlled membrane composition, asymmetry, and contents

    David L. Richmond, Eva M. Schmid, Sascha Martens, Jeanne C. Stachowiak, Nicole Liska, and Daniel A. Fletcher

    PNAS June 7, 2011 108 (23) 9431-9436; https://doi.org/10.1073/pnas.1016410108
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    Solution structure of the ESCRT-I complex by small-angle X-ray scattering, EPR, and FRET spectroscopy

    Evzen Boura, Bartosz Różycki, Dawn Z. Herrick, Hoi Sung Chung, Jaroslav Vecer, William A. Eaton, David S. Cafiso, Gerhard Hummer, and James H. Hurley

    PNAS June 7, 2011 108 (23) 9437-9442; https://doi.org/10.1073/pnas.1101763108
  • Open Access

    Human telomerase model shows the role of the TEN domain in advancing the double helix for the next polymerization step

    Kamil Steczkiewicz, Michael T. Zimmermann, Mateusz Kurcinski, Benjamin A. Lewis, Drena Dobbs, Andrzej Kloczkowski, Robert L. Jernigan, Andrzej Kolinski, and Krzysztof Ginalski

    PNAS June 7, 2011 108 (23) 9443-9448; https://doi.org/10.1073/pnas.1015399108
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    Structural basis of photosensitivity in a bacterial light-oxygen-voltage/helix-turn-helix (LOV-HTH) DNA-binding protein

    Abigail I. Nash, Reginald McNulty, Mary Elizabeth Shillito, Trevor E. Swartz, Roberto A. Bogomolni, Hartmut Luecke, and Kevin H. Gardner

    PNAS June 7, 2011 108 (23) 9449-9454; https://doi.org/10.1073/pnas.1100262108
  • Open Access

    Forces guiding assembly of light-harvesting complex 2 in native membranes

    Lu-Ning Liu, Katia Duquesne, Filipp Oesterhelt, James N. Sturgis, and Simon Scheuring

    PNAS June 7, 2011 108 (23) 9455-9459; https://doi.org/10.1073/pnas.1004205108
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    Islet amyloid polypeptide demonstrates a persistent capacity to disrupt membrane integrity

    Nicholas B. Last, Elizabeth Rhoades, and Andrew D. Miranker

    PNAS June 7, 2011 108 (23) 9460-9465; https://doi.org/10.1073/pnas.1102356108

• Cell Biology

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    Integrin activation and internalization on soft ECM as a mechanism of induction of stem cell differentiation by ECM elasticity

    Jing Du, Xiaofei Chen, Xudong Liang, Guangyao Zhang, Jia Xu, Linrong He, Qingyuan Zhan, Xi-Qiao Feng, Shu Chien, and Chun Yang

    PNAS June 7, 2011 108 (23) 9466-9471; https://doi.org/10.1073/pnas.1106467108
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    Apoptosis regulator through modulating IAP expression (ARIA) controls the PI3K/Akt pathway in endothelial and endothelial progenitor cells

    Masahiro Koide, Koji Ikeda, Yoshiki Akakabe, Youhei Kitamura, Tomomi Ueyama, Satoaki Matoba, Hiroyuki Yamada, Mitsuhiko Okigaki, and Hiroaki Matsubara

    PNAS June 7, 2011 108 (23) 9472-9477; https://doi.org/10.1073/pnas.1101296108
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    Cholinergic chemosensory cells in the trachea regulate breathing

    Gabriela Krasteva, Brendan J. Canning, Petra Hartmann, Tibor Z. Veres, Tamara Papadakis, Christian Mühlfeld, Kirstin Schliecker, Yvonne N. Tallini, Armin Braun, Holger Hackstein, Nelli Baal, Eberhard Weihe, Burkhard Schütz, Michael Kotlikoff, Ines Ibanez-Tallon, and Wolfgang Kummer

    PNAS June 7, 2011 108 (23) 9478-9483; https://doi.org/10.1073/pnas.1019418108

• Developmental Biology

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    Hedgehog signaling is required for formation of the notochord sheath and patterning of nuclei pulposi within the intervertebral discs

    Kyung-Suk Choi and Brian D. Harfe

    PNAS June 7, 2011 108 (23) 9484-9489; https://doi.org/10.1073/pnas.1007566108
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    Polycomb repressive complex 2 is necessary for the normal site-specific O-GlcNAc distribution in mouse embryonic stem cells

    Samuel A. Myers, Barbara Panning, and Alma L. Burlingame

    PNAS June 7, 2011 108 (23) 9490-9495; https://doi.org/10.1073/pnas.1019289108

• Ecology

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    Selectivity of terrestrial gastropod extinctions on an oceanic archipelago and insights into the anthropogenic extinction process

    Satoshi Chiba and Kaustuv Roy

    PNAS June 7, 2011 108 (23) 9496-9501; https://doi.org/10.1073/pnas.1100085108
  • Open Access

    Coincident mass extirpation of neotropical amphibians with the emergence of the infectious fungal pathogen Batrachochytrium dendrobatidis

    • From the Cover

    Tina L. Cheng, Sean M. Rovito, David B. Wake, and Vance T. Vredenburg

    PNAS June 7, 2011 108 (23) 9502-9507; https://doi.org/10.1073/pnas.1105538108
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    Soil warming, carbon–nitrogen interactions, and forest carbon budgets

    Jerry M. Melillo, Sarah Butler, Jennifer Johnson, Jacqueline Mohan, Paul Steudler, Heidi Lux, Elizabeth Burrows, Francis Bowles, Rose Smith, Lindsay Scott, Chelsea Vario, Troy Hill, Andrew Burton, Yu-Mei Zhou, and Jim Tang

    PNAS June 7, 2011 108 (23) 9508-9512; https://doi.org/10.1073/pnas.1018189108
  • Open Access

    Behavioral thermoregulation by turtle embryos

    Wei-Guo Du, Bo Zhao, Ye Chen, and Richard Shine

    PNAS June 7, 2011 108 (23) 9513-9515; https://doi.org/10.1073/pnas.1102965108
  • Open Access

    The trans-Himalayan flights of bar-headed geese (Anser indicus)

    Lucy A. Hawkes, Sivananinthaperumal Balachandran, Nyambayar Batbayar, Patrick J. Butler, Peter B. Frappell, William K. Milsom, Natsagdorj Tseveenmyadag, Scott H. Newman, Graham R. Scott, Ponnusamy Sathiyaselvam, John Y. Takekawa, Martin Wikelski, and Charles M. Bishop

    PNAS June 7, 2011 108 (23) 9516-9519; https://doi.org/10.1073/pnas.1017295108

• Evolution

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    Rare gene capture in predominantly androgenetic species

    Shannon M. Hedtke, Matthias Glaubrecht, and David M. Hillis

    PNAS June 7, 2011 108 (23) 9520-9524; https://doi.org/10.1073/pnas.1106742108
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    Community interactions govern host-switching with implications for host–parasite coevolutionary history

    Christopher W. Harbison and Dale H. Clayton

    PNAS June 7, 2011 108 (23) 9525-9529; https://doi.org/10.1073/pnas.1102129108

• Genetics

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    Detection and quantification of rare mutations with massively parallel sequencing

    Isaac Kinde, Jian Wu, Nick Papadopoulos, Kenneth W. Kinzler, and Bert Vogelstein

    PNAS June 7, 2011 108 (23) 9530-9535; https://doi.org/10.1073/pnas.1105422108

• Immunology

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    Structural basis for enabling T-cell receptor diversity within biased virus-specific CD8⁺ T-cell responses

    E. Bridie Day, Carole Guillonneau, Stephanie Gras, Nicole L. La Gruta, Dario A. A. Vignali, Peter C. Doherty, Anthony W. Purcell, Jamie Rossjohn, and Stephen J. Turner

    PNAS June 7, 2011 108 (23) 9536-9541; https://doi.org/10.1073/pnas.1106851108
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    Key role for IL-21 in experimental autoimmune uveitis

    Lu Wang, Cheng-Rong Yu, Hyoung-Pyo Kim, Wei Liao, William G. Telford, Charles E. Egwuagu, and Warren J. Leonard

    PNAS June 7, 2011 108 (23) 9542-9547; https://doi.org/10.1073/pnas.1018182108
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    Spontaneous and aging-dependent development of arthritis in NADPH oxidase 2 deficiency through altered differentiation of CD11b+ and Th/Treg cells

    Kihyun Lee, Hee Yeon Won, Myung Ae Bae, Jeong-Ho Hong, and Eun Sook Hwang

    PNAS June 7, 2011 108 (23) 9548-9553; https://doi.org/10.1073/pnas.1012645108
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    Glucocorticoids target suppressor of cytokine signaling 1 (SOCS1) and type 1 interferons to regulate Toll-like receptor–induced STAT1 activation

    Sandip Bhattacharyya, Yuxing Zhao, Thomas W. H. Kay, and Louis J. Muglia

    PNAS June 7, 2011 108 (23) 9554-9559; https://doi.org/10.1073/pnas.1017296108
  • You have access

    Inflammatory disease protective R381Q IL23 receptor polymorphism results in decreased primary CD4+ and CD8+ human T-cell functional responses

    Ritu Sarin, Xingxin Wu, and Clara Abraham

    PNAS June 7, 2011 108 (23) 9560-9565; https://doi.org/10.1073/pnas.1017854108
  • You have access

    CCCTC-binding factor (CTCF) and cohesin influence the genomic architecture of the Igh locus and antisense transcription in pro-B cells

    Stephanie C. Degner, Jiyoti Verma-Gaur, Timothy P. Wong, Claudia Bossen, G. Michael Iverson, Ali Torkamani, Christian Vettermann, Yin C. Lin, Zhongliang Ju, Danae Schulz, Caroline S. Murre, Barbara K. Birshtein, Nicholas J. Schork, Mark S. Schlissel, Roy Riblet, Cornelis Murre, and Ann J. Feeney

    PNAS June 7, 2011 108 (23) 9566-9571; https://doi.org/10.1073/pnas.1019391108

• Medical Sciences

  • Open Access

    PTEN-inducible kinase 1 (PINK1)/Park6 is indispensable for normal heart function

    Filio Billia, Ludger Hauck, Filip Konecny, Vivek Rao, Jie Shen, and Tak Wah Mak

    PNAS June 7, 2011 108 (23) 9572-9577; https://doi.org/10.1073/pnas.1106291108
  • Open Access

    Noninvasive measurement of androgen receptor signaling with a positron-emitting radiopharmaceutical that targets prostate-specific membrane antigen

    Michael J. Evans, Peter M. Smith-Jones, John Wongvipat, Vincent Navarro, Sae Kim, Neil H. Bander, Steven M. Larson, and Charles L. Sawyers

    PNAS June 7, 2011 108 (23) 9578-9582; https://doi.org/10.1073/pnas.1106383108
  • Open Access

    Platelet gene therapy improves hemostatic function for integrin αIIbβ3-deficient dogs

    Juan Fang, Eric S. Jensen, Mary K. Boudreaux, Lily M. Du, Troy B. Hawkins, Sevasti B. Koukouritaki, Kenneth Cornetta, and David A. Wilcox

    PNAS June 7, 2011 108 (23) 9583-9588; https://doi.org/10.1073/pnas.1016394108
  • Open Access

    Canonical hedgehog signaling augments tumor angiogenesis by induction of VEGF-A in stromal perivascular cells

    Weiwei Chen, Tracy Tang, Jeff Eastham-Anderson, Debra Dunlap, Bruno Alicke, Michelle Nannini, Stephen Gould, Robert Yauch, Zora Modrusan, Kelly J. DuPree, Walter C. Darbonne, Greg Plowman, Frederic J. de Sauvage, and Christopher A. Callahan

    PNAS June 7, 2011 108 (23) 9589-9594; https://doi.org/10.1073/pnas.1017945108
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    Gain of chromosome band 7q11 in papillary thyroid carcinomas of young patients is associated with exposure to low-dose irradiation

    • From the Cover

    Julia Heß, Gerry Thomas, Herbert Braselmann, Verena Bauer, Tatjana Bogdanova, Johannes Wienberg, Horst Zitzelsberger, and Kristian Unger

    PNAS June 7, 2011 108 (23) 9595-9600; https://doi.org/10.1073/pnas.1017137108
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    Nod-like receptor pyrin domain-containing protein 6 (NLRP6) controls epithelial self-renewal and colorectal carcinogenesis upon injury

    Sylvain Normand, Anne Delanoye-Crespin, Aude Bressenot, Ludovic Huot, Teddy Grandjean, Laurent Peyrin-Biroulet, Yves Lemoine, David Hot, and Mathias Chamaillard

    PNAS June 7, 2011 108 (23) 9601-9606; https://doi.org/10.1073/pnas.1100981108
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    Guanine nucleotide exchange factor Vav1 regulates perivascular homing and bone marrow retention of hematopoietic stem and progenitor cells

    Abel Sanchez-Aguilera, Yun-Jung Lee, Cristina Lo Celso, Francesca Ferraro, Kristina Brumme, Subhanjan Mondal, Chaekyun Kim, Adrienne Dorrance, Hongbo R. Luo, David T. Scadden, and David A. Williams

    PNAS June 7, 2011 108 (23) 9607-9612; https://doi.org/10.1073/pnas.1102018108
  • Open Access

    Endothelium-protective sphingosine-1-phosphate provided by HDL-associated apolipoprotein M

    Christina Christoffersen, Hideru Obinata, Sunil B. Kumaraswamy, Sylvain Galvani, Josefin Ahnström, Madhumati Sevvana, Claudia Egerer-Sieber, Yves A. Muller, Timothy Hla, Lars B. Nielsen, and Björn Dahlbäck

    PNAS June 7, 2011 108 (23) 9613-9618; https://doi.org/10.1073/pnas.1103187108

• Microbiology

  • Open Access

    Structural basis for immunization with postfusion respiratory syncytial virus fusion F glycoprotein (RSV F) to elicit high neutralizing antibody titers

    Kurt A. Swanson, Ethan C. Settembre, Christine A. Shaw, Antu K. Dey, Rino Rappuoli, Christian W. Mandl, Philip R. Dormitzer, and Andrea Carfi

    PNAS June 7, 2011 108 (23) 9619-9624; https://doi.org/10.1073/pnas.1106536108
  • Open Access

    Polymorphic family of injected pseudokinases is paramount in Toxoplasma virulence

    Michael L. Reese, Gusti M. Zeiner, Jeroen P. J. Saeij, John C. Boothroyd, and Jon P. Boyle

    PNAS June 7, 2011 108 (23) 9625-9630; https://doi.org/10.1073/pnas.1015980108
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    Virulence differences in Toxoplasma mediated by amplification of a family of polymorphic pseudokinases

    Michael S. Behnke, Asis Khan, John C. Wootton, Jitender P. Dubey, Keliang Tang, and L. David Sibley

    PNAS June 7, 2011 108 (23) 9631-9636; https://doi.org/10.1073/pnas.1015338108
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    Hydrogen-bonding networks and RNA bases revealed by cryo electron microscopy suggest a triggering mechanism for calcium switches

    Peng Ge and Z. Hong Zhou

    PNAS June 7, 2011 108 (23) 9637-9642; https://doi.org/10.1073/pnas.1018104108
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    Genetic and molecular analyses reveal an evolutionary trajectory for glycan synthesis in a bacterial protein glycosylation system

    Bente Børud, Raimonda Viburiene, Meredith D. Hartley, Berit Smestad Paulsen, Wolfgang Egge-Jacobsen, Barbara Imperiali, and Michael Koomey

    PNAS June 7, 2011 108 (23) 9643-9648; https://doi.org/10.1073/pnas.1103321108
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    Stage-specific proteomic expression patterns of the human filarial parasite Brugia malayi and its endosymbiont Wolbachia

    Sasisekhar Bennuru, Zhaojing Meng, José M. C. Ribeiro, Roshanak Tolouei Semnani, Elodie Ghedin, King Chan, David A. Lucas, Timothy D. Veenstra, and Thomas B. Nutman

    PNAS June 7, 2011 108 (23) 9649-9654; https://doi.org/10.1073/pnas.1011481108

• Neuroscience

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    Impaired capacity for familiarity after hippocampal damage

    Zhuang Song, John T. Wixted, Ramona O. Hopkins, and Larry R. Squire

    PNAS June 7, 2011 108 (23) 9655-9660; https://doi.org/10.1073/pnas.1107247108
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    Simple line drawings suffice for functional MRI decoding of natural scene categories

    Dirk B. Walther, Barry Chai, Eamon Caddigan, Diane M. Beck, and Li Fei-Fei

    PNAS June 7, 2011 108 (23) 9661-9666; https://doi.org/10.1073/pnas.1015666108
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    Transfer characteristics of a thermosensory synapse in Caenorhabditis elegans

    Anusha Narayan, Gilles Laurent, and Paul W. Sternberg

    PNAS June 7, 2011 108 (23) 9667-9672; https://doi.org/10.1073/pnas.1106617108
  • Open Access

    Enhancer-driven membrane markers for analysis of nonautonomous mechanisms reveal neuron–glia interactions in Drosophila

    Chun Han, Lily Yeh Jan, and Yuh-Nung Jan

    PNAS June 7, 2011 108 (23) 9673-9678; https://doi.org/10.1073/pnas.1106386108
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    Sparse low-order interaction network underlies a highly correlated and learnable neural population code

    Elad Ganmor, Ronen Segev, and Elad Schneidman

    PNAS June 7, 2011 108 (23) 9679-9684; https://doi.org/10.1073/pnas.1019641108
  • Open Access

    Neural correlates of illusory motion perception in Drosophila

    John C. Tuthill, M. Eugenia Chiappe, and Michael B. Reiser

    PNAS June 7, 2011 108 (23) 9685-9690; https://doi.org/10.1073/pnas.1100062108
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    Important roles of brain-specific carnitine palmitoyltransferase and ceramide metabolism in leptin hypothalamic control of feeding

    Su Gao, Guangjing Zhu, Xuefei Gao, Donghai Wu, Patricia Carrasco, Núria Casals, Fausto G. Hegardt, Timothy H. Moran, and Gary D. Lopaschuk

    PNAS June 7, 2011 108 (23) 9691-9696; https://doi.org/10.1073/pnas.1103267108
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    Genetic modulation of horizontal cell number in the mouse retina

    Irene E. Whitney, Mary A. Raven, Daniel C. Ciobanu, Ross A. Poché, Qian Ding, Yasser Elshatory, Lin Gan, Robert W. Williams, and Benjamin E. Reese

    PNAS June 7, 2011 108 (23) 9697-9702; https://doi.org/10.1073/pnas.1103253108
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    ES cell-derived renewable and functional midbrain dopaminergic progenitors

    Sangmi Chung, Jung-Il Moon, Amanda Leung, Daniel Aldrich, Stefan Lukianov, Yui Kitayama, Sara Park, Yan Li, Vadim Y. Bolshakov, Thomas Lamonerie, and Kwang-Soo Kim

    PNAS June 7, 2011 108 (23) 9703-9708; https://doi.org/10.1073/pnas.1016443108

• Plant Biology

  • Open Access

    Genome-wide network model capturing seed germination reveals coordinated regulation of plant cellular phase transitions

    • From the Cover

    George W. Bassel, Hui Lan, Enrico Glaab, Daniel J. Gibbs, Tanja Gerjets, Natalio Krasnogor, Anthony J. Bonner, Michael J. Holdsworth, and Nicholas J. Provart

    PNAS June 7, 2011 108 (23) 9709-9714; https://doi.org/10.1073/pnas.1100958108

• Systems Biology

  • Open Access

    Expanded methyl-sensitive cut counting reveals hypomethylation as an epigenetic state that highlights functional sequences of the genome

    Alejandro Colaneri, Nickolas Staffa, David C. Fargo, Yuan Gao, Tianyuan Wang, Shyamal D. Peddada, and Lutz Birnbaumer

    PNAS June 7, 2011 108 (23) 9715-9720; https://doi.org/10.1073/pnas.1105713108
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    Convergent transcription confers a bistable switch in Enterococcus faecalis conjugation

    Anushree Chatterjee, Christopher M. Johnson, Che-Chi Shu, Yiannis N. Kaznessis, Doraiswami Ramkrishna, Gary M. Dunny, and Wei-Shou Hu

    PNAS June 7, 2011 108 (23) 9721-9726; https://doi.org/10.1073/pnas.1101569108