Table of Contents

Biological Sciences

• Agricultural Sciences

  • Open Access

    Modulation of behavioral phase changes of the migratory locust by the catecholamine metabolic pathway

    Zongyuan Ma, Wei Guo, Xiaojiao Guo, Xianhui Wang, and Le Kang

    PNAS March 8, 2011 108 (10) 3882-3887; https://doi.org/10.1073/pnas.1015098108

• Anthropology

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    Late Neandertals and the intentional removal of feathers as evidenced from bird bone taphonomy at Fumane Cave 44 ky B.P., Italy

    Marco Peresani, Ivana Fiore, Monica Gala, Matteo Romandini, and Antonio Tagliacozzo

    PNAS March 8, 2011 108 (10) 3888-3893; https://doi.org/10.1073/pnas.1016212108

• Applied Biological Sciences

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    Vertical nanopillars for highly localized fluorescence imaging

    Chong Xie, Lindsey Hanson, Yi Cui, and Bianxiao Cui

    PNAS March 8, 2011 108 (10) 3894-3899; https://doi.org/10.1073/pnas.1015589108
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    Activatable aptamer probe for contrast-enhanced in vivo cancer imaging based on cell membrane protein-triggered conformation alteration

    Hui Shi, Xiaoxiao He, Kemin Wang, Xu Wu, Xiaosheng Ye, Qiuping Guo, Weihong Tan, Zhihe Qing, Xiaohai Yang, and Bing Zhou

    PNAS March 8, 2011 108 (10) 3900-3905; https://doi.org/10.1073/pnas.1016197108

• Biochemistry

  • Open Access

    Core promoter recognition complex changes accompany liver development

    Joseph A. D’Alessio, Raymond Ng, Holger Willenbring, and Robert Tjian

    PNAS March 8, 2011 108 (10) 3906-3911; https://doi.org/10.1073/pnas.1100640108
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    Structural basis for nonribosomal peptide synthesis by an aminoacyl-tRNA synthetase paralog

    Luc Bonnefond, Taiga Arai, Yuriko Sakaguchi, Tsutomu Suzuki, Ryuichiro Ishitani, and Osamu Nureki

    PNAS March 8, 2011 108 (10) 3912-3917; https://doi.org/10.1073/pnas.1019480108
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    Insertion domain within mammalian mitochondrial translation initiation factor 2 serves the role of eubacterial initiation factor 1

    Aymen S. Yassin, Md. Emdadul Haque, Partha P. Datta, Kevin Elmore, Nilesh K. Banavali, Linda L. Spremulli, and Rajendra K. Agrawal

    PNAS March 8, 2011 108 (10) 3918-3923; https://doi.org/10.1073/pnas.1017425108
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    Two rotary motors in F-ATP synthase are elastically coupled by a flexible rotor and a stiff stator stalk

    André Wächter, Yumin Bi, Stanley D. Dunn, Brian D. Cain, Hendrik Sielaff, Frank Wintermann, Siegfried Engelbrecht, and Wolfgang Junge

    PNAS March 8, 2011 108 (10) 3924-3929; https://doi.org/10.1073/pnas.1011581108
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    RNA methylation by Radical SAM enzymes RlmN and Cfr proceeds via methylene transfer and hydride shift

    Feng Yan and Danica Galonić Fujimori

    PNAS March 8, 2011 108 (10) 3930-3934; https://doi.org/10.1073/pnas.1017781108
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    Molecular basis of substrate-induced permeation by an amino acid antiporter

    Lukasz Kowalczyk, Mercè Ratera, Antonella Paladino, Paola Bartoccioni, Ekaitz Errasti-Murugarren, Eva Valencia, Guillem Portella, Susanna Bial, Antonio Zorzano, Ignacio Fita, Modesto Orozco, Xavier Carpena, José Luis Vázquez-Ibar, and Manuel Palacín

    PNAS March 8, 2011 108 (10) 3935-3940; https://doi.org/10.1073/pnas.1018081108
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    Rewiring hydrogenase-dependent redox circuits in cyanobacteria

    Daniel C. Ducat, Gairik Sachdeva, and Pamela A. Silver

    PNAS March 8, 2011 108 (10) 3941-3946; https://doi.org/10.1073/pnas.1016026108

• Biophysics And Computational Biology

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    Two ground state isoforms and a chromophore D-ring photoflip triggering extensive intramolecular changes in a canonical phytochrome

    Chen Song, Georgios Psakis, Christina Lang, Jo Mailliet, Wolfgang Gärtner, Jon Hughes, and Jörg Matysik

    PNAS March 8, 2011 108 (10) 3842-3847; https://doi.org/10.1073/pnas.1013377108
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    Solving structure in the CP29 light harvesting complex with polarization-phased 2D electronic spectroscopy

    Naomi S. Ginsberg, Jeffrey A. Davis, Matteo Ballottari, Yuan-Chung Cheng, Roberto Bassi, and Graham R. Fleming

    PNAS March 8, 2011 108 (10) 3848-3853; https://doi.org/10.1073/pnas.1012054108
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    Role of large thermal fluctuations and magnesium ions in t-RNA selectivity of the ribosome

    Zuojun Guo, Meghan Gibson, Sanyasi Sitha, Steven Chu, and Udayan Mohanty

    PNAS March 8, 2011 108 (10) 3947-3951; https://doi.org/10.1073/pnas.1100671108
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    Mapping backbone and side-chain interactions in the transition state of a coupled protein folding and binding reaction

    Annett Bachmann, Dirk Wildemann, Florian Praetorius, Gunter Fischer, and Thomas Kiefhaber

    PNAS March 8, 2011 108 (10) 3952-3957; https://doi.org/10.1073/pnas.1012668108
  • Open Access

    Transmembrane orientation and possible role of the fusogenic peptide from parainfluenza virus 5 (PIV5) in promoting fusion

    • From the Cover

    Jason E. Donald, Yao Zhang, Giacomo Fiorin, Vincenzo Carnevale, David R. Slochower, Feng Gai, Michael L. Klein, and William F. DeGrado

    PNAS March 8, 2011 108 (10) 3958-3963; https://doi.org/10.1073/pnas.1019668108

    See companion article:

    • A bundling of viral fusion mechanisms

      - Feb 28, 2011
  • Open Access

    Interconversions of P and F intermediates of cytochrome c oxidase from Paracoccus denitrificans

    Iris von der Hocht, Jessica H. van Wonderen, Florian Hilbers, Heike Angerer, Fraser MacMillan, and Hartmut Michel

    PNAS March 8, 2011 108 (10) 3964-3969; https://doi.org/10.1073/pnas.1100950108
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    Periplasmic vestibule plays an important role for solute recruitment, selectivity, and gating in the Rh/Amt/MEP superfamily

    Ugur Akgun and Shahram Khademi

    PNAS March 8, 2011 108 (10) 3970-3975; https://doi.org/10.1073/pnas.1007240108

• Cell Biology

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    Structures of the atlastin GTPase provide insight into homotypic fusion of endoplasmic reticulum membranes

    Xin Bian, Robin W. Klemm, Tina Y. Liu, Miao Zhang, Sha Sun, Xuewu Sui, Xinqi Liu, Tom A. Rapoport, and Junjie Hu

    PNAS March 8, 2011 108 (10) 3976-3981; https://doi.org/10.1073/pnas.1101643108
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    Microtubule depolymerization in Caenorhabditis elegans touch receptor neurons reduces gene expression through a p38 MAPK pathway

    Alexander Bounoutas, John Kratz, Lesley Emtage, Charles Ma, Ken C. Nguyen, and Martin Chalfie

    PNAS March 8, 2011 108 (10) 3982-3987; https://doi.org/10.1073/pnas.1101360108
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    GTPγS microtubules mimic the growing microtubule end structure recognized by end-binding proteins (EBs)

    Sebastian P. Maurer, Peter Bieling, Julia Cope, Andreas Hoenger, and Thomas Surrey

    PNAS March 8, 2011 108 (10) 3988-3993; https://doi.org/10.1073/pnas.1014758108
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    Temperature-sensitive ipl1-2/Aurora B mutation is suppressed by mutations in TOR complex 1 via the Glc7/PP1 phosphatase

    Kelly Tatchell, Vasso Makrantoni, Michael J. R. Stark, and Lucy C. Robinson

    PNAS March 8, 2011 108 (10) 3994-3999; https://doi.org/10.1073/pnas.1014406108
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    Large-scale mechanical properties of Xenopus embryonic epithelium

    Olivia Luu, Robert David, Hiromasa Ninomiya, and Rudolf Winklbauer

    PNAS March 8, 2011 108 (10) 4000-4005; https://doi.org/10.1073/pnas.1010331108

• Developmental Biology

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    Transcription factor genes Smad4 and Gata4 cooperatively regulate cardiac valve development

    Ivan P. Moskowitz, Jun Wang, Michael A. Peterson, William T. Pu, Alexander C. Mackinnon, Leif Oxburgh, Gerald C. Chu, Molly Sarkar, Charles Berul, Leslie Smoot, Elizabeth J. Robertson, Robert Schwartz, Jonathan G. Seidman, and Christine E. Seidman

    PNAS March 8, 2011 108 (10) 4006-4011; https://doi.org/10.1073/pnas.1019025108
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    Paternal MHC expression on mouse trophoblast affects uterine vascularization and fetal growth

    • From the Cover

    Zofia Madeja, Hakim Yadi, Richard Apps, Selma Boulenouar, Stephen J. Roper, Lucy Gardner, Ashley Moffett, Francesco Colucci, and Myriam Hemberger

    PNAS March 8, 2011 108 (10) 4012-4017; https://doi.org/10.1073/pnas.1005342108

    See companion article:

    • Strangers no more: Uterine NK cell recognition of the placenta in mice

      - Mar 03, 2011
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    FGF4 and FGF8 comprise the wavefront activity that controls somitogenesis

    L. A. Naiche, Nakisha Holder, and Mark Lewandoski

    PNAS March 8, 2011 108 (10) 4018-4023; https://doi.org/10.1073/pnas.1007417108

• Ecology

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    Anthropogenic and environmental drivers of modern range loss in large mammals

    Charles B. Yackulic, Eric W. Sanderson, and María Uriarte

    PNAS March 8, 2011 108 (10) 4024-4029; https://doi.org/10.1073/pnas.1015097108
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    Grazer cues induce stealth behavior in marine dinoflagellates

    Erik Selander, Hans H. Jakobsen, Fabien Lombard, and Thomas Kiørboe

    PNAS March 8, 2011 108 (10) 4030-4034; https://doi.org/10.1073/pnas.1011870108

• Environmental Sciences

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    Efficiency of the CO₂-concentrating mechanism of diatoms

    • Inaugural Article

    Brian M. Hopkinson, Christopher L. Dupont, Andrew E. Allen, and François M. M. Morel

    PNAS March 8, 2011 108 (10) 3830-3837; https://doi.org/10.1073/pnas.1018062108
  • Open Access

    Global CO₂ rise leads to reduced maximum stomatal conductance in Florida vegetation

    Emmy I. Lammertsma, Hugo Jan de Boer, Stefan C. Dekker, David L. Dilcher, André F. Lotter, and Friederike Wagner-Cremer

    PNAS March 8, 2011 108 (10) 4035-4040; https://doi.org/10.1073/pnas.1100371108
  • Open Access

    Climate forcing due to optimization of maximal leaf conductance in subtropical vegetation under rising CO₂

    Hugo Jan de Boer, Emmy I. Lammertsma, Friederike Wagner-Cremer, David L. Dilcher, Martin J. Wassen, and Stefan C. Dekker

    PNAS March 8, 2011 108 (10) 4041-4046; https://doi.org/10.1073/pnas.1100555108

• Evolution

  • Open Access

    The population dynamics of bacteria in physically structured habitats and the adaptive virtue of random motility

    Yan Wei, Xiaolin Wang, Jingfang Liu, Ilya Nememan, Amoolya H. Singh, Howie Weiss, and Bruce R. Levin

    PNAS March 8, 2011 108 (10) 4047-4052; https://doi.org/10.1073/pnas.1013499108
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    Evolution of cold-tolerant fungal symbionts permits winter fungiculture by leafcutter ants at the northern frontier of a tropical ant–fungus symbiosis

    Ulrich G. Mueller, Alexander S. Mikheyev, Eunki Hong, Ruchira Sen, Dan L. Warren, Scott E. Solomon, Heather D. Ishak, Mike Cooper, Jessica L. Miller, Kimberly A. Shaffer, and Thomas E. Juenger

    PNAS March 8, 2011 108 (10) 4053-4056; https://doi.org/10.1073/pnas.1015806108
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    Two developmental modules establish 3D beak-shape variation in Darwin's finches

    Ricardo Mallarino, Peter R. Grant, B. Rosemary Grant, Anthony Herrel, Winston P. Kuo, and Arhat Abzhanov

    PNAS March 8, 2011 108 (10) 4057-4062; https://doi.org/10.1073/pnas.1011480108

• Genetics

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    Caenorhabditis elegans aristaless/Arx gene alr-1 restricts variable gene expression

    Irini Topalidou, Alexander van Oudenaarden, and Martin Chalfie

    PNAS March 8, 2011 108 (10) 4063-4068; https://doi.org/10.1073/pnas.1101329108
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    Differentiation of the maize subgenomes by genome dominance and both ancient and ongoing gene loss

    James C. Schnable, Nathan M. Springer, and Michael Freeling

    PNAS March 8, 2011 108 (10) 4069-4074; https://doi.org/10.1073/pnas.1101368108

• Immunology

  • Open Access

    Claudin-4 induction by E-protein activity in later stages of CD4/8 double-positive thymocytes to increase positive selection efficiency

    Yohei Kawai, Yoko Hamazaki, Harumi Fujita, Akikazu Fujita, Takehito Sato, Mikio Furuse, Toyoshi Fujimoto, Anton M. Jetten, Yasutoshi Agata, and Nagahiro Minato

    PNAS March 8, 2011 108 (10) 4075-4080; https://doi.org/10.1073/pnas.1014178108
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    Expression, signaling proficiency, and stimulatory function of the NKG2D lymphocyte receptor in human cancer cells

    Andrea Caballero Benitez, Zhenpeng Dai, Henning H. Mann, Rebecca S. Reeves, Daciana H. Margineantu, Ted A. Gooley, Veronika Groh, and Thomas Spies

    PNAS March 8, 2011 108 (10) 4081-4086; https://doi.org/10.1073/pnas.1018603108

• Medical Sciences

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    Oligosaccharide conjugates of Bordetella pertussis and bronchiseptica induce bactericidal antibodies, an addition to pertussis vaccine

    Joanna Kubler-Kielb, Evgeny Vinogradov, Teresa Lagergård, Ariel Ginzberg, Jerry D. King, Andrew Preston, Duncan J. Maskell, Vince Pozsgay, Jerry M. Keith, John B. Robbins, and Rachel Schneerson

    PNAS March 8, 2011 108 (10) 4087-4092; https://doi.org/10.1073/pnas.1100782108
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    Wounding mobilizes hair follicle stem cells to form tumors

    • From the Cover

    Sunny Y. Wong and Jeremy F. Reiter

    PNAS March 8, 2011 108 (10) 4093-4098; https://doi.org/10.1073/pnas.1013098108
  • Open Access

    Wounding enhances epidermal tumorigenesis by recruiting hair follicle keratinocytes

    Maria Kasper, Viljar Jaks, Alexandra Are, Åsa Bergström, Anja Schwäger, Jessica Svärd, Stephan Teglund, Nick Barker, and Rune Toftgård

    PNAS March 8, 2011 108 (10) 4099-4104; https://doi.org/10.1073/pnas.1014489108
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    Benzoquinone ansamycin 17AAG binds to mitochondrial voltage-dependent anion channel and inhibits cell invasion

    Qian Xie, Robert Wondergem, Yuehai Shen, Greg Cavey, Jiyuan Ke, Ryan Thompson, Robert Bradley, Jennifer Daugherty-Holtrop, Yong Xu, Edwin Chen, Hanan Omar, Neal Rosen, David Wenkert, H. Eric Xu, and George F. Vande Woude

    PNAS March 8, 2011 108 (10) 4105-4110; https://doi.org/10.1073/pnas.1015181108
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    Cortisone-reductase deficiency associated with heterozygous mutations in 11β-hydroxysteroid dehydrogenase type 1

    Alexander J. Lawson, Elizabeth A. Walker, Gareth G. Lavery, Iwona J. Bujalska, Beverly Hughes, Wiebke Arlt, Paul M. Stewart, and Jonathan P. Ride

    PNAS March 8, 2011 108 (10) 4111-4116; https://doi.org/10.1073/pnas.1014934108
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    Antiangiogenic agents significantly improve survival in tumor-bearing mice by increasing tolerance to chemotherapy-induced toxicity

    Danfang Zhang, Eva-Maria E. Hedlund, Sharon Lim, Fang Chen, Yin Zhang, Baocun Sun, and Yihai Cao

    PNAS March 8, 2011 108 (10) 4117-4122; https://doi.org/10.1073/pnas.1016220108
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    Histone deacetylase (HDAC) inhibitors attenuate cardiac hypertrophy by suppressing autophagy

    Dian J. Cao, Zhao V. Wang, Pavan K. Battiprolu, Nan Jiang, Cyndi R. Morales, Yongli Kong, Beverly A. Rothermel, Thomas G. Gillette, and Joseph A. Hill

    PNAS March 8, 2011 108 (10) 4123-4128; https://doi.org/10.1073/pnas.1015081108
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    Mammalian target of rapamycin up-regulation of pyruvate kinase isoenzyme type M2 is critical for aerobic glycolysis and tumor growth

    Qian Sun, Xinxin Chen, Jianhui Ma, Haiyong Peng, Fang Wang, Xiaojun Zha, Yanan Wang, Yanling Jing, Hongwang Yang, Rongrong Chen, Long Chang, Yu Zhang, June Goto, Hiroaki Onda, Tong Chen, Ming-Rong Wang, Youyong Lu, Han You, David Kwiatkowski, and Hongbing Zhang

    PNAS March 8, 2011 108 (10) 4129-4134; https://doi.org/10.1073/pnas.1014769108
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    Endurance exercise rescues progeroid aging and induces systemic mitochondrial rejuvenation in mtDNA mutator mice

    Adeel Safdar, Jacqueline M. Bourgeois, Daniel I. Ogborn, Jonathan P. Little, Bart P. Hettinga, Mahmood Akhtar, James E. Thompson, Simon Melov, Nicholas J. Mocellin, Gregory C. Kujoth, Tomas A. Prolla, and Mark A. Tarnopolsky

    PNAS March 8, 2011 108 (10) 4135-4140; https://doi.org/10.1073/pnas.1019581108
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    Eradication of solid tumors using histone deacetylase inhibitors combined with immune-stimulating antibodies

    Ailsa J. Christiansen, Alison West, Kellie-Marie Banks, Nicole M. Haynes, Michele W. Teng, Mark J. Smyth, and Ricky W. Johnstone

    PNAS March 8, 2011 108 (10) 4141-4146; https://doi.org/10.1073/pnas.1011037108

• Microbiology

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    Microbubbles reveal chiral fluid flows in bacterial swarms

    Yilin Wu, Basarab G. Hosu, and Howard C. Berg

    PNAS March 8, 2011 108 (10) 4147-4151; https://doi.org/10.1073/pnas.1016693108
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    Systems-level analysis of microbial community organization through combinatorial labeling and spectral imaging

    • From the Cover

    Alex M. Valm, Jessica L. Mark Welch, Christopher W. Rieken, Yuko Hasegawa, Mitchell L. Sogin, Rudolf Oldenbourg, Floyd E. Dewhirst, and Gary G. Borisy

    PNAS March 8, 2011 108 (10) 4152-4157; https://doi.org/10.1073/pnas.1101134108
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    Bacterial community structures are unique and resilient in full-scale bioenergy systems

    Jeffrey J. Werner, Dan Knights, Marcelo L. Garcia, Nicholas B. Scalfone, Samual Smith, Kevin Yarasheski, Theresa A. Cummings, Allen R. Beers, Rob Knight, and Largus T. Angenent

    PNAS March 8, 2011 108 (10) 4158-4163; https://doi.org/10.1073/pnas.1015676108
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    High genetic compatibility and increased pathogenicity of reassortants derived from avian H9N2 and pandemic H1N1/2009 influenza viruses

    Yipeng Sun, Kun Qin, Jingjing Wang, Juan Pu, Qingdong Tang, Yanxin Hu, Yuhai Bi, Xueli Zhao, Hanchun Yang, Yuelong Shu, and Jinhua Liu

    PNAS March 8, 2011 108 (10) 4164-4169; https://doi.org/10.1073/pnas.1019109108
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    Ammonia oxidation coupled to CO₂ fixation by archaea and bacteria in an agricultural soil

    Jennifer Pratscher, Marc G. Dumont, and Ralf Conrad

    PNAS March 8, 2011 108 (10) 4170-4175; https://doi.org/10.1073/pnas.1010981108
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    Depletion of antibiotic targets has widely varying effects on growth

    Jun-Rong Wei, Vidhya Krishnamoorthy, Kenan Murphy, Jee-Hyun Kim, Dirk Schnappinger, Tom Alber, Christopher M. Sassetti, Kyu Y. Rhee, and Eric J. Rubin

    PNAS March 8, 2011 108 (10) 4176-4181; https://doi.org/10.1073/pnas.1018301108

• Neuroscience

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    Attention-driven auditory cortex short-term plasticity helps segregate relevant sounds from noise

    Jyrki Ahveninen, Matti Hämäläinen, Iiro P. Jääskeläinen, Seppo P. Ahlfors, Samantha Huang, Fa-Hsuan Lin, Tommi Raij, Mikko Sams, Christos E. Vasios, and John W. Belliveau

    PNAS March 8, 2011 108 (10) 4182-4187; https://doi.org/10.1073/pnas.1016134108
  • Open Access

    Three-dimensional axon morphologies of individual layer 5 neurons indicate cell type-specific intracortical pathways for whisker motion and touch

    Marcel Oberlaender, Zimbo S. R. M. Boudewijns, Tatjana Kleele, Huibert D. Mansvelder, Bert Sakmann, and Christiaan P. J. de Kock

    PNAS March 8, 2011 108 (10) 4188-4193; https://doi.org/10.1073/pnas.1100647108
  • Open Access

    In vivo demonstration that α-synuclein oligomers are toxic

    Beate Winner, Roberto Jappelli, Samir K. Maji, Paula A. Desplats, Leah Boyer, Stefan Aigner, Claudia Hetzer, Thomas Loher, Marçal Vilar, Silvia Campioni, Christos Tzitzilonis, Alice Soragni, Sebastian Jessberger, Helena Mira, Antonella Consiglio, Emiley Pham, Eliezer Masliah, Fred H. Gage, and Roland Riek

    PNAS March 8, 2011 108 (10) 4194-4199; https://doi.org/10.1073/pnas.1100976108
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    Multiple coregulatory control of tyrosine hydroxylase gene transcription

    Sirigiri Divijendra Natha Reddy, Suresh K. Rayala, Kazufumi Ohshiro, Suresh B. Pakala, Nobuhide Kobori, Pramod Dash, Sung Yun, Jun Qin, Bert W. O'Malley, and Rakesh Kumar

    PNAS March 8, 2011 108 (10) 4200-4205; https://doi.org/10.1073/pnas.1101193108
  • Open Access

    Balanced NMDA receptor activity in dopamine D1 receptor (D1R)- and D2R-expressing medium spiny neurons is required for amphetamine sensitization

    Lisa R. Beutler, Matthew J. Wanat, Albert Quintana, Elisenda Sanz, Nigel S. Bamford, Larry S. Zweifel, and Richard D. Palmiter

    PNAS March 8, 2011 108 (10) 4206-4211; https://doi.org/10.1073/pnas.1101424108
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    Combined transcriptome analysis of fetal human and mouse cerebral cortex exposed to alcohol

    Kazue Hashimoto-Torii, Yuka Imamura Kawasawa, Alexandre Kuhn, and Pasko Rakic

    PNAS March 8, 2011 108 (10) 4212-4217; https://doi.org/10.1073/pnas.1100903108
  • Open Access

    Carcinoembryonic antigen-related cell adhesion molecule 16 interacts with α-tectorin and is mutated in autosomal dominant hearing loss (DFNA4)

    Jing Zheng, Katharine K. Miller, Tao Yang, Michael S. Hildebrand, A. Eliot Shearer, Adam P. DeLuca, Todd E. Scheetz, Jennifer Drummond, Steve E. Scherer, P. Kevin Legan, Richard J. Goodyear, Guy P. Richardson, Mary Ann Cheatham, Richard J. Smith, and Peter Dallos

    PNAS March 8, 2011 108 (10) 4218-4223; https://doi.org/10.1073/pnas.1005842108
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    Compound eyes and retinal information processing in miniature dipteran species match their specific ecological demands

    Paloma T. Gonzalez-Bellido, Trevor J. Wardill, and Mikko Juusola

    PNAS March 8, 2011 108 (10) 4224-4229; https://doi.org/10.1073/pnas.1014438108
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    Distributed and causal influence of frontal operculum in task control

    Takayasu Higo, Rogier B. Mars, Erie D. Boorman, Ethan R. Buch, and Matthew F. S. Rushworth

    PNAS March 8, 2011 108 (10) 4230-4235; https://doi.org/10.1073/pnas.1013361108
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    C-terminal-truncated apolipoprotein (apo) E4 inefficiently clears amyloid-β (Aβ) and acts in concert with Aβ to elicit neuronal and behavioral deficits in mice

    Nga Bien-Ly, Yaisa Andrews-Zwilling, Qin Xu, Aubrey Bernardo, Charles Wang, and Yadong Huang

    PNAS March 8, 2011 108 (10) 4236-4241; https://doi.org/10.1073/pnas.1018381108
  • Open Access

    Epigenetic control of vasopressin expression is maintained by steroid hormones in the adult male rat brain

    Catherine J. Auger, Dylan Coss, Anthony P. Auger, and Robin M. Forbes-Lorman

    PNAS March 8, 2011 108 (10) 4242-4247; https://doi.org/10.1073/pnas.1100314108

• Physiology

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    Fish as major carbonate mud producers and missing components of the tropical carbonate factory

    Chris T. Perry, Michael A. Salter, Alastair R. Harborne, Stephen F. Crowley, Howard L. Jelks, and Rod W. Wilson

    PNAS March 8, 2011 108 (10) 3865-3869; https://doi.org/10.1073/pnas.1015895108

• Plant Biology

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    Recent warming by latitude associated with increased length of ragweed pollen season in central North America

    Lewis Ziska, Kim Knowlton, Christine Rogers, Dan Dalan, Nicole Tierney, Mary Ann Elder, Warren Filley, Jeanne Shropshire, Linda B. Ford, Curtis Hedberg, Pamela Fleetwood, Kim T. Hovanky, Tony Kavanaugh, George Fulford, Rose F. Vrtis, Jonathan A. Patz, Jay Portnoy, Frances Coates, Leonard Bielory, and David Frenz

    PNAS March 8, 2011 108 (10) 4248-4251; https://doi.org/10.1073/pnas.1014107108

• Population Biology

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    Hundred years of genetic structure in a sediment revived diatom population

    • From the Cover

    Karolina Härnström, Marianne Ellegaard, Thorbjørn J. Andersen, and Anna Godhe

    PNAS March 8, 2011 108 (10) 4252-4257; https://doi.org/10.1073/pnas.1013528108

    See companion article:

    • Cryptic planktonic diatom challenges phytoplankton ecologists

      - Mar 07, 2011

• Systems Biology

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    Topology of protein interaction network shapes protein abundances and strengths of their functional and nonspecific interactions

    Muyoung Heo, Sergei Maslov, and Eugene Shakhnovich

    PNAS March 8, 2011 108 (10) 4258-4263; https://doi.org/10.1073/pnas.1009392108