Table of Contents

Biological Sciences

• Anthropology

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    Continuity of mammalian fauna over the last 200,000 y in the Indian subcontinent

    Patrick Roberts, Eric Delson, Preston Miracle, Peter Ditchfield, Richard G. Roberts, Zenobia Jacobs, James Blinkhorn, Russell L. Ciochon, John G. Fleagle, Stephen R. Frost, Christopher C. Gilbert, Gregg F. Gunnell, Terry Harrison, Ravi Korisettar, and Michael D. Petraglia

    PNAS April 22, 2014 111 (16) 5848-5853; first published April 7, 2014. https://doi.org/10.1073/pnas.1323465111

• Applied Biological Sciences

  • Open Access

    Mating activates the heme peroxidase HPX15 in the sperm storage organ to ensure fertility in Anopheles gambiae

    W. Robert Shaw, Eleonora Teodori, Sara N. Mitchell, Francesco Baldini, Paolo Gabrieli, David W. Rogers, and Flaminia Catteruccia

    PNAS April 22, 2014 111 (16) 5854-5859; first published April 7, 2014. https://doi.org/10.1073/pnas.1401715111

• Biochemistry

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    The structured core domain of αB-crystallin can prevent amyloid fibrillation and associated toxicity

    Georg K. A. Hochberg, Heath Ecroyd, Cong Liu, Dezerae Cox, Duilio Cascio, Michael R. Sawaya, Miranda P. Collier, James Stroud, John A. Carver, Andrew J. Baldwin, Carol V. Robinson, David S. Eisenberg, Justin L. P. Benesch, and Arthur Laganowsky

    PNAS April 22, 2014 111 (16) E1562-E1570; first published April 7, 2014. https://doi.org/10.1073/pnas.1322673111
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    Regulation of microtubule minus-end dynamics by CAMSAPs and Patronin

    Melissa C. Hendershott and Ronald D. Vale

    PNAS April 22, 2014 111 (16) 5860-5865; first published March 26, 2014. https://doi.org/10.1073/pnas.1404133111
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    Candida albicans SOD5 represents the prototype of an unprecedented class of Cu-only superoxide dismutases required for pathogen defense

    Julie E. Gleason, Ahmad Galaleldeen, Ryan L. Peterson, Alexander B. Taylor, Stephen P. Holloway, Jessica Waninger-Saroni, Brendan P. Cormack, Diane E. Cabelli, P. John Hart, and Valeria Cizewski Culotta

    PNAS April 22, 2014 111 (16) 5866-5871; first published April 7, 2014. https://doi.org/10.1073/pnas.1400137111
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    Structural basis for the evolution of vancomycin resistance D,D-peptidases

    Djalal Meziane-Cherif, Peter J. Stogios, Elena Evdokimova, Alexei Savchenko, and Patrice Courvalin

    PNAS April 22, 2014 111 (16) 5872-5877; first published April 7, 2014. https://doi.org/10.1073/pnas.1402259111

• Biophysics and Computational Biology

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    Substrate-induced changes in the structural properties of LacY

    Tetiana Serdiuk, M. Gregor Madej, Junichi Sugihara, Shiho Kawamura, Stefania A. Mari, H. Ronald Kaback, and Daniel J. Müller

    PNAS April 22, 2014 111 (16) E1571-E1580; first published April 7, 2014. https://doi.org/10.1073/pnas.1404446111
  • Open Access

    Bending forces plastically deform growing bacterial cell walls

    Ariel Amir, Farinaz Babaeipour, Dustin B. McIntosh, David R. Nelson, and Suckjoon Jun

    PNAS April 22, 2014 111 (16) 5778-5783; first published April 7, 2014. https://doi.org/10.1073/pnas.1317497111
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    Outer membrane β-barrel protein folding is physically controlled by periplasmic lipid head groups and BamA

    Dennis Gessmann, Yong Hee Chung, Emily J. Danoff, Ashlee M. Plummer, Clifford W. Sandlin, Nathan R. Zaccai, and Karen G. Fleming

    PNAS April 22, 2014 111 (16) 5878-5883; first published April 8, 2014. https://doi.org/10.1073/pnas.1322473111

• Cell Biology

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    Integrative framework for identification of key cell identity genes uncovers determinants of ES cell identity and homeostasis

    Senthilkumar Cinghu, Sailu Yellaboina, Johannes M. Freudenberg, Swati Ghosh, Xiaofeng Zheng, Andrew J. Oldfield, Brad L. Lackford, Dmitri V. Zaykin, Guang Hu, and Raja Jothi

    PNAS April 22, 2014 111 (16) E1581-E1590; first published April 7, 2014. https://doi.org/10.1073/pnas.1318598111
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    Mpl expression on megakaryocytes and platelets is dispensable for thrombopoiesis but essential to prevent myeloproliferation

    Ashley P. Ng, Maria Kauppi, Donald Metcalf, Craig D. Hyland, Emma C. Josefsson, Marion Lebois, Jian-Guo Zhang, Tracey M. Baldwin, Ladina Di Rago, Douglas J. Hilton, and Warren S. Alexander

    PNAS April 22, 2014 111 (16) 5884-5889; first published April 7, 2014. https://doi.org/10.1073/pnas.1404354111
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    CG hypomethylation in Lsh^−/− mouse embryonic fibroblasts is associated with de novo H3K4me1 formation and altered cellular plasticity

    Weishi Yu, Victorino Briones, Ryan Lister, Carl McIntosh, Yixing Han, Eunice Y. Lee, Jianke Ren, Minoru Terashima, Robert M. Leighty, Joseph R. Ecker, and Kathrin Muegge

    PNAS April 22, 2014 111 (16) 5890-5895; first published April 7, 2014. https://doi.org/10.1073/pnas.1320945111
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    Synthetic control of mammalian-cell motility by engineering chemotaxis to an orthogonal bioinert chemical signal

    Jason S. Park, Benjamin Rhau, Aynur Hermann, Krista A. McNally, Carmen Zhou, Delquin Gong, Orion D. Weiner, Bruce R. Conklin, James Onuffer, and Wendell A. Lim

    PNAS April 22, 2014 111 (16) 5896-5901; first published April 7, 2014. https://doi.org/10.1073/pnas.1402087111
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    Erbin is a negative modulator of cardiac hypertrophy

    Inbal Rachmin, Sagi Tshori, Yoav Smith, Amit Oppenheim, Sylvie Marchetto, Gillian Kay, Roger S.-Y. Foo, Noa Dagan, Eliahu Golomb, Dan Gilon, Jean-Paul Borg, and Ehud Razin

    PNAS April 22, 2014 111 (16) 5902-5907; first published April 7, 2014. https://doi.org/10.1073/pnas.1320350111
  • Open Access

    Biologically-active laminin-111 fragment that modulates the epithelial-to-mesenchymal transition in embryonic stem cells

    Christine-Maria Horejs, Andrea Serio, Alan Purvis, Adam J. Gormley, Sergio Bertazzo, Anna Poliniewicz, Alex J. Wang, Peter DiMaggio, Erhard Hohenester, and Molly M. Stevens

    PNAS April 22, 2014 111 (16) 5908-5913; first published April 3, 2014. https://doi.org/10.1073/pnas.1403139111

• Environmental Sciences

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    Changes in peat chemistry associated with permafrost thaw increase greenhouse gas production

    Suzanne B. Hodgkins, Malak M. Tfaily, Carmody K. McCalley, Tyler A. Logan, Patrick M. Crill, Scott R. Saleska, Virginia I. Rich, and Jeffrey P. Chanton

    PNAS April 22, 2014 111 (16) 5819-5824; first published April 7, 2014. https://doi.org/10.1073/pnas.1314641111

• Evolution

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    Long-term morphological stasis maintained by a plant–pollinator mutualism

    Charles C. Davis, Hanno Schaefer, Zhenxiang Xi, David A. Baum, Michael J. Donoghue, and Luke J. Harmon

    PNAS April 22, 2014 111 (16) 5914-5919; first published April 4, 2014. https://doi.org/10.1073/pnas.1403157111
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    Evolutionary diversity and taxon-specific modifications of the RNA polymerase II C-terminal domain

    Chunlin Yang and John W. Stiller

    PNAS April 22, 2014 111 (16) 5920-5925; first published April 7, 2014. https://doi.org/10.1073/pnas.1323616111
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    Massive programmed translational jumping in mitochondria

    B. Franz Lang, Michaela Jakubkova, Eva Hegedusova, Rachid Daoud, Lise Forget, Brona Brejova, Tomas Vinar, Peter Kosa, Dominika Fricova, Martina Nebohacova, Peter Griac, Lubomir Tomaska, Gertraud Burger, and Jozef Nosek

    PNAS April 22, 2014 111 (16) 5926-5931; first published April 7, 2014. https://doi.org/10.1073/pnas.1322190111
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    DNA methylation and evolution of duplicate genes

    Thomas E. Keller and Soojin V. Yi

    PNAS April 22, 2014 111 (16) 5932-5937; first published April 7, 2014. https://doi.org/10.1073/pnas.1321420111
  • Open Access

    Host adaptation to viruses relies on few genes with different cross-resistance properties

    Nelson E. Martins, Vítor G. Faria, Viola Nolte, Christian Schlötterer, Luis Teixeira, Élio Sucena, and Sara Magalhães

    PNAS April 22, 2014 111 (16) 5938-5943; first published April 7, 2014. https://doi.org/10.1073/pnas.1400378111

• Genetics

  • Open Access

    Social disadvantage, genetic sensitivity, and children’s telomere length

    Colter Mitchell, John Hobcraft, Sara S. McLanahan, Susan Rutherford Siegel, Arthur Berg, Jeanne Brooks-Gunn, Irwin Garfinkel, and Daniel Notterman

    PNAS April 22, 2014 111 (16) 5944-5949; first published April 7, 2014. https://doi.org/10.1073/pnas.1404293111
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    SUMOylation regulates telomere length by targeting the shelterin subunit Tpz1^Tpp1 to modulate shelterin–Stn1 interaction in fission yeast

    Keisuke Miyagawa, Ross S. Low, Venny Santosa, Hiroki Tsuji, Bettina A. Moser, Shiho Fujisawa, Jennifer L. Harland, Olga N. Raguimova, Andrew Go, Masaru Ueno, Akihisa Matsuyama, Minoru Yoshida, Toru M. Nakamura, and Katsunori Tanaka

    PNAS April 22, 2014 111 (16) 5950-5955; first published April 7, 2014. https://doi.org/10.1073/pnas.1401359111
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    The Caenorhabditis elegans HP1 family protein HPL-2 maintains ER homeostasis through the UPR and hormesis

    Lucie Kozlowski, Steve Garvis, Cécile Bedet, and Francesca Palladino

    PNAS April 22, 2014 111 (16) 5956-5961; first published April 8, 2014. https://doi.org/10.1073/pnas.1321698111
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    Hst3 is turned over by a replication stress-responsive SCF^Cdc4 phospho-degron

    Ellen R. Edenberg, Ajay A. Vashisht, Benjamin R. Topacio, James A. Wohlschlegel, and David P. Toczyski

    PNAS April 22, 2014 111 (16) 5962-5967; first published April 8, 2014. https://doi.org/10.1073/pnas.1315325111
  • Open Access

    Genetic variation associated with euphorigenic effects of d-amphetamine is associated with diminished risk for schizophrenia and attention deficit hyperactivity disorder

    Amy B. Hart, Eric R. Gamazon, Barbara E. Engelhardt, Pamela Sklar, Anna K. Kähler, Christina M. Hultman, Patrick F. Sullivan, Benjamin M. Neale, Stephen V. Faraone, Psychiatric Genomics Consortium: ADHD Subgroup, Harriet de Wit, Nancy J. Cox, and Abraham A. Palmer

    PNAS April 22, 2014 111 (16) 5968-5973; first published April 7, 2014. https://doi.org/10.1073/pnas.1318810111

• Immunology

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    The nature and extent of contributions by defective ribosome products to the HLA peptidome

    Dmitry Bourdetsky, Christian E. H. Schmelzer, and Arie Admon

    PNAS April 22, 2014 111 (16) E1591-E1599; first published April 8, 2014. https://doi.org/10.1073/pnas.1321902111
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    Granzyme K synergistically potentiates LPS-induced cytokine responses in human monocytes

    Annette C. Wensink, Vera Kemp, Job Fermie, M. Isabel García Laorden, Tom van der Poll, C. Erik Hack, and Niels Bovenschen

    PNAS April 22, 2014 111 (16) 5974-5979; first published April 7, 2014. https://doi.org/10.1073/pnas.1317347111
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    Distinctive properties of identical twins' TCR repertoires revealed by high-throughput sequencing

    • From the Cover

    Ivan V. Zvyagin, Mikhail V. Pogorelyy, Marina E. Ivanova, Ekaterina A. Komech, Mikhail Shugay, Dmitry A. Bolotin, Andrey A. Shelenkov, Alexey A. Kurnosov, Dmitriy B. Staroverov, Dmitriy M. Chudakov, Yuri B. Lebedev, and Ilgar Z. Mamedov

    PNAS April 22, 2014 111 (16) 5980-5985; first published April 7, 2014. https://doi.org/10.1073/pnas.1319389111
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    Differentiation of CD11c⁺CX₃CR1⁺ cells in the small intestine requires Notch signaling

    Chieko Ishifune, Satoshi Maruyama, Yuki Sasaki, Hideo Yagita, Katsuto Hozumi, Taisuke Tomita, Kenji Kishihara, and Koji Yasutomo

    PNAS April 22, 2014 111 (16) 5986-5991; first published April 7, 2014. https://doi.org/10.1073/pnas.1401671111
  • Open Access

    Glycan variants of a respiratory syncytial virus antibody with enhanced effector function and in vivo efficacy

    Andrew Hiatt, Natasha Bohorova, Ognian Bohorov, Charles Goodman, Do Kim, Michael H. Pauly, Jesus Velasco, Kevin J. Whaley, Pedro A. Piedra, Brian E. Gilbert, and Larry Zeitlin

    PNAS April 22, 2014 111 (16) 5992-5997; first published April 7, 2014. https://doi.org/10.1073/pnas.1402458111

• Medical Sciences

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    p53 constrains progression to anaplastic thyroid carcinoma in a Braf-mutant mouse model of papillary thyroid cancer

    David G. McFadden, Amanda Vernon, Philip M. Santiago, Raul Martinez-McFaline, Arjun Bhutkar, Denise M. Crowley, Martin McMahon, Peter M. Sadow, and Tyler Jacks

    PNAS April 22, 2014 111 (16) E1600-E1609; first published April 7, 2014. https://doi.org/10.1073/pnas.1404357111
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    Characterizing asthma from a drop of blood using neutrophil chemotaxis

    Eric Karl-Heinz Sackmann, Erwin Berthier, Elizabeth A. Schwantes, Paul S. Fichtinger, Michael D. Evans, Laura L. Dziadzio, Anna Huttenlocher, Sameer K. Mathur, and David J. Beebe

    PNAS April 22, 2014 111 (16) 5813-5818; first published April 7, 2014. https://doi.org/10.1073/pnas.1324043111
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    Inverse hormesis of cancer growth mediated by narrow ranges of tumor-directed antibodies

    Oliver M. T. Pearce, Heinz Läubli, Andrea Verhagen, Patrick Secrest, Jiquan Zhang, Nissi M. Varki, Paul R. Crocker, Jack D. Bui, and Ajit Varki

    PNAS April 22, 2014 111 (16) 5998-6003; first published April 7, 2014. https://doi.org/10.1073/pnas.1209067111
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    Annexin A6 modifies muscular dystrophy by mediating sarcolemmal repair

    Kayleigh A. Swaggart, Alexis R. Demonbreun, Andy H. Vo, Kaitlin E. Swanson, Ellis Y. Kim, John P. Fahrenbach, Jenan Holley-Cuthrell, Ascia Eskin, Zugen Chen, Kevin Squire, Ahlke Heydemann, Abraham A. Palmer, Stanley F. Nelson, and Elizabeth M. McNally

    PNAS April 22, 2014 111 (16) 6004-6009; first published April 9, 2014. https://doi.org/10.1073/pnas.1324242111
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    An engineered muscle flap for reconstruction of large soft tissue defects

    Yulia Shandalov, Dana Egozi, Jacob Koffler, Dekel Dado-Rosenfeld, David Ben-Shimol, Alina Freiman, Erez Shor, Aviva Kabala, and Shulamit Levenberg

    PNAS April 22, 2014 111 (16) 6010-6015; first published April 7, 2014. https://doi.org/10.1073/pnas.1402679111

• Microbiology

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    Bile salts act as effective protein-unfolding agents and instigators of disulfide stress in vivo

    Claudia M. Cremers, Daniela Knoefler, Victor Vitvitsky, Ruma Banerjee, and Ursula Jakob

    PNAS April 22, 2014 111 (16) E1610-E1619; first published April 4, 2014. https://doi.org/10.1073/pnas.1401941111
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    Replication protein of tobacco mosaic virus cotranslationally binds the 5′ untranslated region of genomic RNA to enable viral replication

    Kazue Kawamura-Nagaya, Kazuhiro Ishibashi, Ying-Ping Huang, Shuhei Miyashita, and Masayuki Ishikawa

    PNAS April 22, 2014 111 (16) E1620-E1628; first published April 7, 2014. https://doi.org/10.1073/pnas.1321660111
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    Degenerate target sites mediate rapid primed CRISPR adaptation

    Peter C. Fineran, Matthias J. H. Gerritzen, María Suárez-Diez, Tim Künne, Jos Boekhorst, Sacha A. F. T. van Hijum, Raymond H. J. Staals, and Stan J. J. Brouns

    PNAS April 22, 2014 111 (16) E1629-E1638; first published April 7, 2014. https://doi.org/10.1073/pnas.1400071111
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    Importance of positioning for microbial evolution

    Wook Kim, Fernando Racimo, Jonas Schluter, Stuart B. Levy, and Kevin R. Foster

    PNAS April 22, 2014 111 (16) E1639-E1647; first published April 8, 2014. https://doi.org/10.1073/pnas.1323632111
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    Staphylococcal pathogenicity island DNA packaging system involving cos-site packaging and phage-encoded HNH endonucleases

    Nuria Quiles-Puchalt, Nuria Carpena, Juan C. Alonso, Richard P. Novick, Alberto Marina, and José R. Penadés

    PNAS April 22, 2014 111 (16) 6016-6021; first published April 7, 2014. https://doi.org/10.1073/pnas.1320538111
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    HNH proteins are a widespread component of phage DNA packaging machines

    Smriti Kala, Nichole Cumby, Paul D. Sadowski, Batool Zafar Hyder, Voula Kanelis, Alan R. Davidson, and Karen L. Maxwell

    PNAS April 22, 2014 111 (16) 6022-6027; first published April 7, 2014. https://doi.org/10.1073/pnas.1320952111
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    Quinacrine promotes replication and conformational mutation of chronic wasting disease prions

    Jifeng Bian, Hae-Eun Kang, and Glenn C. Telling

    PNAS April 22, 2014 111 (16) 6028-6033; first published April 7, 2014. https://doi.org/10.1073/pnas.1322377111
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    Furin cleavage of the Moloney murine leukemia virus Env precursor reorganizes the spike structure

    Mathilda Sjöberg, Shang-Rung Wu, Robin Löving, Kimmo Rantalainen, Birgitta Lindqvist, and Henrik Garoff

    PNAS April 22, 2014 111 (16) 6034-6039; first published April 7, 2014. https://doi.org/10.1073/pnas.1317972111
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    Arthritogenic alphaviral infection perturbs osteoblast function and triggers pathologic bone loss

    • From the Cover

    Weiqiang Chen, Suan-Sin Foo, Nestor E. Rulli, Adam Taylor, Kuo-Ching Sheng, Lara J. Herrero, Belinda L. Herring, Brett A. Lidbury, Rachel W. Li, Nicole C. Walsh, Natalie A. Sims, Paul N. Smith, and Suresh Mahalingam

    PNAS April 22, 2014 111 (16) 6040-6045; first published April 14, 2014. https://doi.org/10.1073/pnas.1318859111
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    Guanylate binding proteins promote caspase-11–dependent pyroptosis in response to cytoplasmic LPS

    Danielle M. Pilla, Jon A. Hagar, Arun K. Haldar, Ashley K. Mason, Daniel Degrandi, Klaus Pfeffer, Robert K. Ernst, Masahiro Yamamoto, Edward A. Miao, and Jörn Coers

    PNAS April 22, 2014 111 (16) 6046-6051; first published April 8, 2014. https://doi.org/10.1073/pnas.1321700111

• Neuroscience

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    Hypocretin (orexin) facilitates reward by attenuating the antireward effects of its cotransmitter dynorphin in ventral tegmental area

    • From the Cover

    John W. Muschamp, Jonathan A. Hollander, Jennifer L. Thompson, George Voren, Linda C. Hassinger, Sara Onvani, Theodore M. Kamenecka, Stephanie L. Borgland, Paul J. Kenny, and William A. Carlezon Jr.

    PNAS April 22, 2014 111 (16) E1648-E1655; first published March 24, 2014. https://doi.org/10.1073/pnas.1315542111
  • Open Access

    Population receptive field analysis of the primary visual cortex complements perimetry in patients with homonymous visual field defects

    Amalia Papanikolaou, Georgios A. Keliris, T. Dorina Papageorgiou, Yibin Shao, Elke Krapp, Eleni Papageorgiou, Katarina Stingl, Anna Bruckmann, Ulrich Schiefer, Nikos K. Logothetis, and Stelios M. Smirnakis

    PNAS April 22, 2014 111 (16) E1656-E1665; first published April 3, 2014. https://doi.org/10.1073/pnas.1317074111
  • Open Access

    Brain galanin system genes interact with life stresses in depression-related phenotypes

    Gabriella Juhasz, Gabor Hullam, Nora Eszlari, Xenia Gonda, Peter Antal, Ian Muir Anderson, Tomas G. M. Hökfelt, J. F. William Deakin, and Gyorgy Bagdy

    PNAS April 22, 2014 111 (16) E1666-E1673; first published March 24, 2014. https://doi.org/10.1073/pnas.1403649111
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    Language universals at birth

    David Maximiliano Gómez, Iris Berent, Silvia Benavides-Varela, Ricardo A. H. Bion, Luigi Cattarossi, Marina Nespor, and Jacques Mehler

    PNAS April 22, 2014 111 (16) 5837-5841; first published March 31, 2014. https://doi.org/10.1073/pnas.1318261111
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    Drinking alcohol has sex-dependent effects on pair bond formation in prairie voles

    Allison M. J. Anacker, Todd H. Ahern, Caroline M. Hostetler, Brett D. Dufour, Monique L. Smith, Davelle L. Cocking, Ju Li, Larry J. Young, Jennifer M. Loftis, and Andrey E. Ryabinin

    PNAS April 22, 2014 111 (16) 6052-6057; first published April 7, 2014. https://doi.org/10.1073/pnas.1320879111
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    Neurobiological basis of head motion in brain imaging

    Ling-Li Zeng, Danhong Wang, Michael D. Fox, Mert Sabuncu, Dewen Hu, Manling Ge, Randy L. Buckner, and Hesheng Liu

    PNAS April 22, 2014 111 (16) 6058-6062; first published April 7, 2014. https://doi.org/10.1073/pnas.1317424111
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    Evidence for a causal inverse model in an avian cortico-basal ganglia circuit

    Nicolas Giret, Joergen Kornfeld, Surya Ganguli, and Richard H. R. Hahnloser

    PNAS April 22, 2014 111 (16) 6063-6068; first published April 7, 2014. https://doi.org/10.1073/pnas.1317087111
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    Hypothalamic oxytocin and vasopressin neurons exert sex-specific effects on pair bonding, gregariousness, and aggression in finches

    Aubrey M. Kelly and James L. Goodson

    PNAS April 22, 2014 111 (16) 6069-6074; first published April 7, 2014. https://doi.org/10.1073/pnas.1322554111
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    Cholinergic neurotransmission links solitary chemosensory cells to nasal inflammation

    • From the Cover

    Cecil J. Saunders, Michael Christensen, Thomas E. Finger, and Marco Tizzano

    PNAS April 22, 2014 111 (16) 6075-6080; first published April 7, 2014. https://doi.org/10.1073/pnas.1402251111
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    Genetically encoding a light switch in an ionotropic glutamate receptor reveals subunit-specific interfaces

    Shujia Zhu, Morgane Riou, C. Andrea Yao, Stéphanie Carvalho, Pamela C. Rodriguez, Olivier Bensaude, Pierre Paoletti, and Shixin Ye

    PNAS April 22, 2014 111 (16) 6081-6086; first published April 8, 2014. https://doi.org/10.1073/pnas.1318808111

• Physiology

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    Photic memory for executive brain responses

    • From the Cover

    Sarah Laxhmi Chellappa, Julien Q. M. Ly, Christelle Meyer, Evelyne Balteau, Christian Degueldre, André Luxen, Christophe Phillips, Howard M. Cooper, and Gilles Vandewalle

    PNAS April 22, 2014 111 (16) 6087-6091; first published March 10, 2014. https://doi.org/10.1073/pnas.1320005111

• Plant Biology

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    Sugar demand, not auxin, is the initial regulator of apical dominance

    Michael G. Mason, John J. Ross, Benjamin A. Babst, Brittany N. Wienclaw, and Christine A. Beveridge

    PNAS April 22, 2014 111 (16) 6092-6097; first published April 7, 2014. https://doi.org/10.1073/pnas.1322045111

• Psychological and Cognitive Sciences

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    Damage to insula abolishes cognitive distortions during simulated gambling

    Luke Clark, Bettina Studer, Joel Bruss, Daniel Tranel, and Antoine Bechara

    PNAS April 22, 2014 111 (16) 6098-6103; first published April 7, 2014. https://doi.org/10.1073/pnas.1322295111
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    Natural auditory scene statistics shapes human spatial hearing

    Cesare V. Parise, Katharina Knorre, and Marc O. Ernst

    PNAS April 22, 2014 111 (16) 6104-6108; first published April 7, 2014. https://doi.org/10.1073/pnas.1322705111

• Sustainability Science

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    Effects of land use on bird populations and pest control services on coffee farms

    Steven F. Railsback and Matthew D. Johnson

    PNAS April 22, 2014 111 (16) 6109-6114; first published April 7, 2014. https://doi.org/10.1073/pnas.1320957111