Proceedings of the National Academy of Sciences: 109 (18)

New Research In

May 01, 2012; vol. 109 no. 18

This Week in PNAS

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In This Issue
PNAS May 1, 2012 109 (18) 6785-6786; https://doi.org/10.1073/iti1812109

Letters (Online Only)

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Misuse of hierarchical linear models overstates the significance of a reported association between OXTR and prosociality
Luke Jostins, Joseph K. Pickrell, Daniel G. MacArthur, and Jeffrey C. Barrett

PNAS May 1, 2012 109 (18) E1048; https://doi.org/10.1073/pnas.1202539109
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Are momentary measures of positive affect better predictors of mortality than recalled feelings?
Michael Daly

PNAS May 1, 2012 109 (18) E1049; https://doi.org/10.1073/pnas.1201630109
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Reply to Daly: Recalled vs. experienced affect as predictors of mortality
Andrew Steptoe and Jane Wardle

PNAS May 1, 2012 109 (18) E1050; https://doi.org/10.1073/pnas.1203270109
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Covalent attachment of pyridoxal-phosphate derivatives to 14-3-3 proteins
Lars Röglin, Philipp Thiel, Oliver Kohlbacher, and Christian Ottmann

PNAS May 1, 2012 109 (18) E1051-E1053; https://doi.org/10.1073/pnas.1116592109
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Reply to Röglin et al.: Synchrotron radiation-induced covalent modification of 14-3-3ζ by diazene compounds containing pyridoxal phosphate
Anup K. Upadhyay, John R. Horton, Yuhong Du, Yan Bai, Xiaodong Cheng, and Haian Fu

PNAS May 1, 2012 109 (18) E1054; https://doi.org/10.1073/pnas.1203341109

Profile

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Profile of Anthony J. McMichael
Sujata Gupta

PNAS May 1, 2012 109 (18) 6787-6789; https://doi.org/10.1073/pnas.1205294109
See companion article:
Insights from past millennia into climatic impacts on human health and survival
- Mar 27, 2012

Commentaries

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Secrets of tubule engineering by epithelial cells
Ilan Tsarfaty and Eshel Ben-Jacob

PNAS May 1, 2012 109 (18) 6790-6791; https://doi.org/10.1073/pnas.1202337109
See companion article:
Long-range mechanical force enables self-assembly of epithelial tubular patterns
- Apr 10, 2012
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Proteins under pressure
Brian W. Matthews

PNAS May 1, 2012 109 (18) 6792-6793; https://doi.org/10.1073/pnas.1204795109
See companion article:
Cavities determine the pressure unfolding of proteins
- May 01, 2012
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Bats and white-nose syndrome
M. Brock Fenton

PNAS May 1, 2012 109 (18) 6794-6795; https://doi.org/10.1073/pnas.1204793109
See companion article:
Inoculation of bats with European Geomyces destructans supports the novel pathogen hypothesis for the origin of white-nose syndrome
- May 01, 2012

Physical Sciences

Applied Physical Sciences
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  Pressure tunes electrical resistivity by four orders of magnitude in amorphous Ge₂Sb₂Te₅ phase-change memory alloy
  M. Xu, Y. Q. Cheng, L. Wang, H. W. Sheng, Y. Meng, W. G. Yang, X. D. Han, and E. Ma
  
  PNAS May 1, 2012 109 (18) E1055-E1062; https://doi.org/10.1073/pnas.1119754109
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  On the origin of the hierarchy of color names
  Vittorio Loreto, Animesh Mukherjee, and Francesca Tria
  
  PNAS May 1, 2012 109 (18) 6819-6824; https://doi.org/10.1073/pnas.1113347109
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  Evidence of a large-scale mechanosensing mechanism for cellular adaptation to substrate stiffness
  Léa Trichet, Jimmy Le Digabel, Rhoda J. Hawkins, Sri Ram Krishna Vedula, Mukund Gupta, Claire Ribrault, Pascal Hersen, Raphaël Voituriez, and Benoît Ladoux
  
  PNAS May 1, 2012 109 (18) 6933-6938; https://doi.org/10.1073/pnas.1117810109
Chemistry
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  Octahydriodo diborane (B₂H₈) and its protonated cations containing five-, six-, and seven-coordinate boron atoms
  George A. Olah, G. K. Surya Prakash, and Golam Rasul
  
  PNAS May 1, 2012 109 (18) 6825-6828; https://doi.org/10.1073/pnas.1204184109
- Open Access
  Biologically relevant mechanism for catalytic superoxide removal by simple manganese compounds
  Kevin Barnese, Edith Butler Gralla, Joan Selverstone Valentine, and Diane E. Cabelli
  
  PNAS May 1, 2012 109 (18) 6892-6897; https://doi.org/10.1073/pnas.1203051109
- Open Access
  Designing biomimetic pores based on carbon nanotubes
  Rebeca García-Fandiño and Mark S. P. Sansom
  
  PNAS May 1, 2012 109 (18) 6939-6944; https://doi.org/10.1073/pnas.1119326109
Earth, Atmospheric, and Planetary Sciences
- Open Access
  Climate change and the selective signature of the Late Ordovician mass extinction
  Seth Finnegan, Noel A. Heim, Shanan E. Peters, and Woodward W. Fischer
  
  PNAS May 1, 2012 109 (18) 6829-6834; https://doi.org/10.1073/pnas.1117039109
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  Agulhas leakage as a key process in the modes of Quaternary climate changes
  Thibaut Caley, Jacques Giraudeau, Bruno Malaizé, Linda Rossignol, and Catherine Pierre
  
  PNAS May 1, 2012 109 (18) 6835-6839; https://doi.org/10.1073/pnas.1115545109
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  Alternative pathway for atmospheric particles growth
  From the Cover
  
  Maria Eugenia Monge, Thomas Rosenørn, Olivier Favez, Markus Müller, Gabriela Adler, Ali Abo Riziq, Yinon Rudich, Hartmut Herrmann, Christian George, and Barbara D’Anna
  
  PNAS May 1, 2012 109 (18) 6840-6844; https://doi.org/10.1073/pnas.1120593109
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  Predator-induced macroevolutionary trends in Mesozoic crinoids
  Przemysław Gorzelak, Mariusz A. Salamon, and Tomasz K. Baumiller
  
  PNAS May 1, 2012 109 (18) 7004-7007; https://doi.org/10.1073/pnas.1201573109
Mathematics
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  On De Giorgi’s conjecture and beyond
  Manuel Del Pino, Michal Kowalczyk, and Juncheng Wei
  
  PNAS May 1, 2012 109 (18) 6845-6850; https://doi.org/10.1073/pnas.1202687109
Physics
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  Coupling actin flow, adhesion, and morphology in a computational cell motility model
  Danying Shao, Herbert Levine, and Wouter-Jan Rappel
  
  PNAS May 1, 2012 109 (18) 6851-6856; https://doi.org/10.1073/pnas.1203252109
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  The inexorable resistance of inertia determines the initial regime of drop coalescence
  Joseph D. Paulsen, Justin C. Burton, Sidney R. Nagel, Santosh Appathurai, Michael T. Harris, and Osman A. Basaran
  
  PNAS May 1, 2012 109 (18) 6857-6861; https://doi.org/10.1073/pnas.1120775109

Biological Sciences

Anthropology
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  Representation of stable social dominance relations by human infants
  Olivier Mascaro and Gergely Csibra
  
  PNAS May 1, 2012 109 (18) 6862-6867; https://doi.org/10.1073/pnas.1113194109
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  Nest-building orangutans demonstrate engineering know-how to produce safe, comfortable beds
  Adam van Casteren, William I. Sellers, Susannah K. S. Thorpe, Sam Coward, Robin H. Crompton, Julia P. Myatt, and A. Roland Ennos
  
  PNAS May 1, 2012 109 (18) 6873-6877; https://doi.org/10.1073/pnas.1200902109
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  Single amino acid radiocarbon dating of Upper Paleolithic modern humans
  From the Cover
  
  Anat Marom, James S. O. McCullagh, Thomas F. G. Higham, Andrey A. Sinitsyn, and Robert E. M. Hedges
  
  PNAS May 1, 2012 109 (18) 6878-6881; https://doi.org/10.1073/pnas.1116328109
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  Juvenile hominoid cranium from the late Miocene of southern China and hominoid diversity in Asia
  Jay Kelley and Feng Gao
  
  PNAS May 1, 2012 109 (18) 6882-6885; https://doi.org/10.1073/pnas.1201330109
Applied Biological Sciences
- Open Access
  Tissue deformation spatially modulates VEGF signaling and angiogenesis
  Nicolas C. Rivron, Erik J. Vrij, Jeroen Rouwkema, Severine Le Gac, Albert van den Berg, Roman K. Truckenmüller, and Clemens A. van Blitterswijk
  
  PNAS May 1, 2012 109 (18) 6886-6891; https://doi.org/10.1073/pnas.1201626109
Biochemistry
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  A core subunit of Polycomb repressive complex 1 is broadly conserved in function but not primary sequence
  Leslie Y. Beh, Lucy J. Colwell, and Nicole J. Francis
  
  PNAS May 1, 2012 109 (18) E1063-E1071; https://doi.org/10.1073/pnas.1118678109
- Open Access
  Biologically relevant mechanism for catalytic superoxide removal by simple manganese compounds
  Kevin Barnese, Edith Butler Gralla, Joan Selverstone Valentine, and Diane E. Cabelli
  
  PNAS May 1, 2012 109 (18) 6892-6897; https://doi.org/10.1073/pnas.1203051109
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  Immunotoxin resistance via reversible methylation of the DPH4 promoter is a unique survival strategy
  Hui Wei, Laiman Xiang, Alan S. Wayne, Oleg Chertov, David J. FitzGerald, Tapan K. Bera, and Ira Pastan
  
  PNAS May 1, 2012 109 (18) 6898-6903; https://doi.org/10.1073/pnas.1204523109
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  Pyruvate kinase M2 promotes de novo serine synthesis to sustain mTORC1 activity and cell proliferation
  Jiangbin Ye, Anthony Mancuso, Xuemei Tong, Patrick S. Ward, Jing Fan, Joshua D. Rabinowitz, and Craig B. Thompson
  
  PNAS May 1, 2012 109 (18) 6904-6909; https://doi.org/10.1073/pnas.1204176109
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  Near attack conformers dominate β-phosphoglucomutase complexes where geometry and charge distribution reflect those of substrate
  Joanna L. Griffin, Matthew W. Bowler, Nicola J. Baxter, Katherine N. Leigh, Hugh R. W. Dannatt, Andrea M. Hounslow, G. Michael Blackburn, Charles Edwin Webster, Matthew J. Cliff, and Jonathan P. Waltho
  
  PNAS May 1, 2012 109 (18) 6910-6915; https://doi.org/10.1073/pnas.1116855109
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  Atomic structure of the autosomal recessive hypercholesterolemia phosphotyrosine-binding domain in complex with the LDL-receptor tail
  Hay Dvir, Mehul Shah, Enrico Girardi, Lixia Guo, Marilyn G. Farquhar, and Dirk M. Zajonc
  
  PNAS May 1, 2012 109 (18) 6916-6921; https://doi.org/10.1073/pnas.1114128109
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  ATP-independent substrate reduction by nitrogenase P-cluster variant
  Chi Chung Lee, Yilin Hu, and Markus W. Ribbe
  
  PNAS May 1, 2012 109 (18) 6922-6926; https://doi.org/10.1073/pnas.1202429109
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  BRD4 is an atypical kinase that phosphorylates Serine2 of the RNA Polymerase II carboxy-terminal domain
  Ballachanda N. Devaiah, Brian A. Lewis, Natasha Cherman, Michael C. Hewitt, Brian K. Albrecht, Pamela G. Robey, Keiko Ozato, Robert J. Sims III, and Dinah S. Singer
  
  PNAS May 1, 2012 109 (18) 6927-6932; https://doi.org/10.1073/pnas.1120422109
Biophysics and Computational Biology
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  Evidence of a large-scale mechanosensing mechanism for cellular adaptation to substrate stiffness
  Léa Trichet, Jimmy Le Digabel, Rhoda J. Hawkins, Sri Ram Krishna Vedula, Mukund Gupta, Claire Ribrault, Pascal Hersen, Raphaël Voituriez, and Benoît Ladoux
  
  PNAS May 1, 2012 109 (18) 6933-6938; https://doi.org/10.1073/pnas.1117810109
- Open Access
  Designing biomimetic pores based on carbon nanotubes
  Rebeca García-Fandiño and Mark S. P. Sansom
  
  PNAS May 1, 2012 109 (18) 6939-6944; https://doi.org/10.1073/pnas.1119326109
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  Cavities determine the pressure unfolding of proteins
  From the Cover
  
  Julien Roche, Jose A. Caro, Douglas R. Norberto, Philippe Barthe, Christian Roumestand, Jamie L. Schlessman, Angel E. Garcia, Bertrand García-Moreno E., and Catherine A. Royer
  
  PNAS May 1, 2012 109 (18) 6945-6950; https://doi.org/10.1073/pnas.1200915109
  
  See companion article:
  Proteins under pressure
  - May 01, 2012
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  Intrinsic disorder modulates protein self-assembly and aggregation
  Alfonso De Simone, Craig Kitchen, Ann H. Kwan, Margaret Sunde, Christopher M. Dobson, and Daan Frenkel
  
  PNAS May 1, 2012 109 (18) 6951-6956; https://doi.org/10.1073/pnas.1118048109
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  Robustness and accuracy of cell division in Escherichia coli in diverse cell shapes
  Jaan Männik, Fabai Wu, Felix J. H. Hol, Paola Bisicchia, David J. Sherratt, Juan E. Keymer, and Cees Dekker
  
  PNAS May 1, 2012 109 (18) 6957-6962; https://doi.org/10.1073/pnas.1120854109
Cell Biology
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  Drosophila Golgi membrane protein Ema promotes autophagosomal growth and function
  Sungsu Kim, Sarah A. Naylor, and Aaron DiAntonio
  
  PNAS May 1, 2012 109 (18) E1072-E1081; https://doi.org/10.1073/pnas.1120320109
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  Coupling actin flow, adhesion, and morphology in a computational cell motility model
  Danying Shao, Herbert Levine, and Wouter-Jan Rappel
  
  PNAS May 1, 2012 109 (18) 6851-6856; https://doi.org/10.1073/pnas.1203252109
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  β-Catenin signaling initiates the activation of astrocytes and its dysregulation contributes to the pathogenesis of astrocytomas
  Chunzhang Yang, Rajiv R. Iyer, Albert C. H. Yu, Raymund L. Yong, Deric M. Park, Robert J. Weil, Barbara Ikejiri, Roscoe O. Brady, Russell R. Lonser, and Zhengping Zhuang
  
  PNAS May 1, 2012 109 (18) 6963-6968; https://doi.org/10.1073/pnas.1118754109
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  Different agonists recruit different stromal interaction molecule proteins to support cytoplasmic Ca²⁺ oscillations and gene expression
  Pulak Kar, Daniel Bakowski, Joseph Di Capite, Charmaine Nelson, and Anant B. Parekh
  
  PNAS May 1, 2012 109 (18) 6969-6974; https://doi.org/10.1073/pnas.1201204109
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  Lysocardiolipin acyltransferase 1 (ALCAT1) controls mitochondrial DNA fidelity and biogenesis through modulation of MFN2 expression
  Jia Li, Xiaolei Liu, Huayan Wang, Weiping Zhang, David C. Chan, and Yuguang Shi
  
  PNAS May 1, 2012 109 (18) 6975-6980; https://doi.org/10.1073/pnas.1120043109
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  Regulation of selective autophagy onset by a Ypt/Rab GTPase module
  Zhanna Lipatova, Natalia Belogortseva, Xiu Qi Zhang, Jane Kim, David Taussig, and Nava Segev
  
  PNAS May 1, 2012 109 (18) 6981-6986; https://doi.org/10.1073/pnas.1121299109
Developmental Biology
- Open Access
  Neurofibromatosis-like phenotype in Drosophila caused by lack of glucosylceramide extension
  Katja Dahlgaard, Anita Jung, Klaus Qvortrup, Henrik Clausen, Ole Kjaerulff, and Hans H. Wandall
  
  PNAS May 1, 2012 109 (18) 6987-6992; https://doi.org/10.1073/pnas.1115453109
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  Differentiation of vascular smooth muscle cells from local precursors during embryonic and adult arteriogenesis requires Notch signaling
  From the Cover
  
  Linda Chang, Michela Noseda, Michelle Higginson, Michelle Ly, Alexandre Patenaude, Megan Fuller, Alastair H. Kyle, Andrew I. Minchinton, Mira C. Puri, Daniel J. Dumont, and Aly Karsan
  
  PNAS May 1, 2012 109 (18) 6993-6998; https://doi.org/10.1073/pnas.1118512109
Ecology
- Open Access
  Climate change and the selective signature of the Late Ordovician mass extinction
  Seth Finnegan, Noel A. Heim, Shanan E. Peters, and Woodward W. Fischer
  
  PNAS May 1, 2012 109 (18) 6829-6834; https://doi.org/10.1073/pnas.1117039109
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  Inoculation of bats with European Geomyces destructans supports the novel pathogen hypothesis for the origin of white-nose syndrome
  From the Cover
  
  Lisa Warnecke, James M. Turner, Trent K. Bollinger, Jeffrey M. Lorch, Vikram Misra, Paul M. Cryan, Gudrun Wibbelt, David S. Blehert, and Craig K. R. Willis
  
  PNAS May 1, 2012 109 (18) 6999-7003; https://doi.org/10.1073/pnas.1200374109
  
  See companion article:
  Bats and white-nose syndrome
  - May 01, 2012
Environmental Sciences
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  Agulhas leakage as a key process in the modes of Quaternary climate changes
  Thibaut Caley, Jacques Giraudeau, Bruno Malaizé, Linda Rossignol, and Catherine Pierre
  
  PNAS May 1, 2012 109 (18) 6835-6839; https://doi.org/10.1073/pnas.1115545109
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  Global changes in diets and the consequences for land requirements for food
  Thomas Kastner, Maria Jose Ibarrola Rivas, Wolfgang Koch, and Sanderine Nonhebel
  
  PNAS May 1, 2012 109 (18) 6868-6872; https://doi.org/10.1073/pnas.1117054109
Evolution
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  Predator-induced macroevolutionary trends in Mesozoic crinoids
  Przemysław Gorzelak, Mariusz A. Salamon, and Tomasz K. Baumiller
  
  PNAS May 1, 2012 109 (18) 7004-7007; https://doi.org/10.1073/pnas.1201573109
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  Tempo of trophic evolution and its impact on mammalian diversification
  Samantha A. Price, Samantha S. B. Hopkins, Kathleen K. Smith, and V. Louise Roth
  
  PNAS May 1, 2012 109 (18) 7008-7012; https://doi.org/10.1073/pnas.1117133109
Genetics
- Open Access
  Chronic restraint stress attenuates p53 function and promotes tumorigenesis
  Zhaohui Feng, Lianxin Liu, Cen Zhang, Tongsen Zheng, Jiabei Wang, Meihua Lin, Yuhan Zhao, Xiaowen Wang, Arnold J. Levine, and Wenwei Hu
  
  PNAS May 1, 2012 109 (18) 7013-7018; https://doi.org/10.1073/pnas.1203930109
- Open Access
  Membrane binding of Escherichia coli RNase E catalytic domain stabilizes protein structure and increases RNA substrate affinity
  Oleg N. Murashko, Vladimir R. Kaberdin, and Sue Lin-Chao
  
  PNAS May 1, 2012 109 (18) 7019-7024; https://doi.org/10.1073/pnas.1120181109
Immunology
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  Tpl2 ablation promotes intestinal inflammation and tumorigenesis in Apc^min mice by inhibiting IL-10 secretion and regulatory T-cell generation
  Oksana B. Serebrennikova, Christos Tsatsanis, Changchuin Mao, Elias Gounaris, Wenying Ren, Linda D. Siracusa, Aristides G. Eliopoulos, Khashayarsha Khazaie, and Philip N. Tsichlis
  
  PNAS May 1, 2012 109 (18) E1082-E1091; https://doi.org/10.1073/pnas.1115098109
- Open Access
  Murine gammaherpesvirus 68 infection protects lupus-prone mice from the development of autoimmunity
  Jennifer D. Larson, Joshua M. Thurman, Anatoly V. Rubtsov, David Claypool, Philippa Marrack, Linda F. van Dyk, Raul M. Torres, and Roberta Pelanda
  
  PNAS May 1, 2012 109 (18) E1092-E1100; https://doi.org/10.1073/pnas.1203019109
- Open Access
  MHC class I antigen processing distinguishes endogenous antigens based on their translation from cellular vs. viral mRNA
  Brian P. Dolan, Aditi A. Sharma, James S. Gibbs, Tshaka J. Cunningham, Jack R. Bennink, and Jonathan W. Yewdell
  
  PNAS May 1, 2012 109 (18) 7025-7030; https://doi.org/10.1073/pnas.1112387109
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  The expression of the receptor for advanced glycation endproducts (RAGE) is permissive for early pancreatic neoplasia
  Rui Kang, Tara Loux, Daolin Tang, Nicole E. Schapiro, Philip Vernon, Kristen M. Livesey, Alyssa Krasinskas, Michael T. Lotze, and Herbert J. Zeh III
  
  PNAS May 1, 2012 109 (18) 7031-7036; https://doi.org/10.1073/pnas.1113865109
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  Long-lived epithelial immunity by tissue-resident memory T (T_RM) cells in the absence of persisting local antigen presentation
  Laura K. Mackay, Angus T. Stock, Joel Z. Ma, Claerwen M. Jones, Stephen J. Kent, Scott N. Mueller, William R. Heath, Francis R. Carbone, and Thomas Gebhardt
  
  PNAS May 1, 2012 109 (18) 7037-7042; https://doi.org/10.1073/pnas.1202288109
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  Langerhans cells down-regulate inflammation-driven alveolar bone loss
  Moran Arizon, Itay Nudel, Hadas Segev, Gabriel Mizraji, Mazal Elnekave, Karina Furmanov, Luba Eli-Berchoer, Björn E. Clausen, Lior Shapira, Asaf Wilensky, and Avi-Hai Hovav
  
  PNAS May 1, 2012 109 (18) 7043-7048; https://doi.org/10.1073/pnas.1116770109
Medical Sciences
- Open Access
  Robust full-length hepatitis C virus genotype 2a and 2b infectious cultures using mutations identified by a systematic approach applicable to patient strains
  Yi-Ping Li, Santseharay Ramirez, Judith M. Gottwein, Troels K. H. Scheel, Lotte Mikkelsen, Robert H. Purcell, and Jens Bukh
  
  PNAS May 1, 2012 109 (18) E1101-E1110; https://doi.org/10.1073/pnas.1203829109
- Open Access
  Expression-based genome-wide association study links the receptor CD44 in adipose tissue with type 2 diabetes
  Keiichi Kodama, Momoko Horikoshi, Kyoko Toda, Satoru Yamada, Kazuo Hara, Junichiro Irie, Marina Sirota, Alexander A. Morgan, Rong Chen, Hiroshi Ohtsu, Shiro Maeda, Takashi Kadowaki, and Atul J. Butte
  
  PNAS May 1, 2012 109 (18) 7049-7054; https://doi.org/10.1073/pnas.1114513109
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  Selective recruitment of G protein-coupled receptor kinases (GRKs) controls signaling of the insulin-like growth factor 1 receptor
  Huiyuan Zheng, Claire Worrall, Hongchang Shen, Tarik Issad, Stefan Seregard, Ada Girnita, and Leonard Girnita
  
  PNAS May 1, 2012 109 (18) 7055-7060; https://doi.org/10.1073/pnas.1118359109
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  General anesthesia alters time perception by phase shifting the circadian clock
  James F. Cheeseman, Eva C. Winnebeck, Craig D. Millar, Lisa S. Kirkland, James Sleigh, Mark Goodwin, Matt D. M. Pawley, Guy Bloch, Konstantin Lehmann, Randolf Menzel, and Guy R. Warman
  
  PNAS May 1, 2012 109 (18) 7061-7066; https://doi.org/10.1073/pnas.1201734109
- Open Access
  Pleckstrin homology domain-interacting protein (PHIP) as a marker and mediator of melanoma metastasis
  David De Semir, Mehdi Nosrati, Vladimir Bezrookove, Altaf A. Dar, Scot Federman, Geraldine Bienvenu, Suraj Venna, Javier Rangel, Joan Climent, Tanja M. Meyer Tamgüney, Suresh Thummala, Schuyler Tong, Stanley P. L. Leong, Chris Haqq, Paul Billings, James R. Miller III, Richard W. Sagebiel, Robert Debs, and Mohammed Kashani-Sabet
  
  PNAS May 1, 2012 109 (18) 7067-7072; https://doi.org/10.1073/pnas.1119949109
Microbiology
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  Bacteriophage T4 polynucleotide kinase triggers degradation of mRNAs
  Sylvain Durand, Graziella Richard, François Bontems, and Marc Uzan
  
  PNAS May 1, 2012 109 (18) 7073-7078; https://doi.org/10.1073/pnas.1119802109
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  Snapshot of virus evolution in hypersaline environments from the characterization of a membrane-containing Salisaeta icosahedral phage 1
  Antti P. Aalto, David Bitto, Janne J. Ravantti, Dennis H. Bamford, Juha T. Huiskonen, and Hanna M. Oksanen
  
  PNAS May 1, 2012 109 (18) 7079-7084; https://doi.org/10.1073/pnas.1120174109
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  Refactoring the nitrogen fixation gene cluster from Klebsiella oxytoca
  Karsten Temme, Dehua Zhao, and Christopher A. Voigt
  
  PNAS May 1, 2012 109 (18) 7085-7090; https://doi.org/10.1073/pnas.1120788109
Neuroscience
- Open Access
  Link between orientation and retinotopic maps in primary visual cortex
  Se-Bum Paik and Dario L. Ringach
  
  PNAS May 1, 2012 109 (18) 7091-7096; https://doi.org/10.1073/pnas.1118926109
Physiology
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  Dynamic migration of γδ intraepithelial lymphocytes requires occludin
  Karen L. Edelblum, Le Shen, Christopher R. Weber, Amanda M. Marchiando, Bryan S. Clay, Yingmin Wang, Immo Prinz, Bernard Malissen, Anne I. Sperling, and Jerrold R. Turner
  
  PNAS May 1, 2012 109 (18) 7097-7102; https://doi.org/10.1073/pnas.1112519109
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  Allosteric gating mechanism underlies the flexible gating of KCNQ1 potassium channels
  Jeremiah D. Osteen, Rene Barro-Soria, Seth Robey, Kevin J. Sampson, Robert S. Kass, and H. Peter Larsson
  
  PNAS May 1, 2012 109 (18) 7103-7108; https://doi.org/10.1073/pnas.1201582109
Plant Biology
- Open Access
  Heterosis of Arabidopsis hybrids between C24 and Col is associated with increased photosynthesis capacity
  Ryo Fujimoto, Jennifer M. Taylor, Sachiko Shirasawa, W. James Peacock, and Elizabeth S. Dennis
  
  PNAS May 1, 2012 109 (18) 7109-7114; https://doi.org/10.1073/pnas.1204464109
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  Molecular genetic basis of pod corn (Tunicate maize)
  Luzie U. Wingen, Thomas Münster, Wolfram Faigl, Wim Deleu, Hans Sommer, Heinz Saedler, and Günter Theißen
  
  PNAS May 1, 2012 109 (18) 7115-7120; https://doi.org/10.1073/pnas.1111670109
Psychological and Cognitive Sciences
- Open Access
  Test of a motor theory of long-term auditory memory
  Katrin Schulze, Faraneh Vargha-Khadem, and Mortimer Mishkin
  
  PNAS May 1, 2012 109 (18) 7121-7125; https://doi.org/10.1073/pnas.1204717109
Sustainability Science
- Open Access
  Extending the timescale and range of ecosystem services through paleoenvironmental analyses, exemplified in the lower Yangtze basin
  John A. Dearing, Xiangdong Yang, Xuhui Dong, Enlou Zhang, Xu Chen, Peter G. Langdon, Ke Zhang, Weiguo Zhang, and Terence P. Dawson
  
  PNAS May 1, 2012 109 (18) E1111-E1120; https://doi.org/10.1073/pnas.1118263109
Systems Biology
- You have access
  Superessential reactions in metabolic networks
  Aditya Barve, João Frederico Matias Rodrigues, and Andreas Wagner
  
  PNAS May 1, 2012 109 (18) E1121-E1130; https://doi.org/10.1073/pnas.1113065109
- You have access
  The protein expression landscape of the Arabidopsis root
  Inaugural Article
  
  Jalean J. Petricka, Monica A. Schauer, Molly Megraw, Natalie W. Breakfield, J. Will Thompson, Stoyan Georgiev, Erik J. Soderblom, Uwe Ohler, Martin Arthur Moseley, Ueli Grossniklaus, and Philip N. Benfey
  
  PNAS May 1, 2012 109 (18) 6811-6818; https://doi.org/10.1073/pnas.1202546109

Corrections

You have access
Correction for Seto et al., Structure-property relationships of a biological mesocrystal in the adult sea urchin spine
PNAS May 1, 2012 109 (18) 7126; https://doi.org/10.1073/pnas.1204261109
You have access
Correction for Crotty et al., Reexamination of magnetic isotope and field effects on adenosine triphosphate production by creatine kinase
PNAS May 1, 2012 109 (18) 7126; https://doi.org/10.1073/pnas.1205746109
You have access
Correction for Bershtein et al., Soluble oligomerization provides a beneficial fitness effect on destabilizing mutations
PNAS May 1, 2012 109 (18) 7126; https://doi.org/10.1073/pnas.1205753109
You have access
Correction for Kirk et al., Domain expertise insulates against judgment bias by monetary favors through a modulation of ventromedial prefrontal cortex
PNAS May 1, 2012 109 (18) 7126; https://doi.org/10.1073/pnas.1205836109

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