Proceedings of the National Academy of Sciences: 109 (39)

New Research In

September 25, 2012; vol. 109 no. 39

This Week in PNAS

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In This Issue
PNAS September 25, 2012 109 (39) 15529-15530; https://doi.org/10.1073/iti3912109

Letters (Online Only)

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Lack of correspondence between Asian-Papuan genetic admixture and Austronesian language dispersal in eastern Indonesia
Tim Denham and Mark Donohue

PNAS September 25, 2012 109 (39) E2577; https://doi.org/10.1073/pnas.1209616109
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Reply to Denham and Donohue: Asian-Papuan genetic admixture is in excellent agreement with Austronesian dispersal in eastern Indonesia
Shuhua Xu and Mark Stoneking

PNAS September 25, 2012 109 (39) E2578; https://doi.org/10.1073/pnas.1210177109

Commentaries

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Longer time scale for human evolution
John Hawks

PNAS September 25, 2012 109 (39) 15531-15532; https://doi.org/10.1073/pnas.1212718109
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Modeling the protection of photosynthesis
Jeremy Harbinson

PNAS September 25, 2012 109 (39) 15533-15534; https://doi.org/10.1073/pnas.1213195109
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Toward a metabolic scaling theory of crop systems
Louis J. Gross and Brian Beckage

PNAS September 25, 2012 109 (39) 15535-15536; https://doi.org/10.1073/pnas.1214556109
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Looking beyond overnutrition for causes of epidemic metabolic disease
Leonid Poretsky

PNAS September 25, 2012 109 (39) 15537-15538; https://doi.org/10.1073/pnas.1213503109

Chemical Approaches To Artificial Photosynthesis: Solar Fuels Special Feature (free online)

Introduction
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  Chemical approaches to artificial photosynthesis
  From the Cover
  
  Javier J. Concepcion, Ralph L. House, John M. Papanikolas, and Thomas J. Meyer
  
  PNAS September 25, 2012 109 (39) 15560-15564; https://doi.org/10.1073/pnas.1212254109
Research Articles
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  Step-by-step self-assembled hybrids that feature control over energy and charge transfer
  Bruno Grimm, Julia Schornbaum, Hannelore Jasch, Olga Trukhina, Florian Wessendorf, Andreas Hirsch, Tomas Torres, and Dirk M. Guldi
  
  PNAS September 25, 2012 109 (39) 15565-15571; https://doi.org/10.1073/pnas.1113753109
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  Formation of a long-lived electron-transfer state in mesoporous silica-alumina composites enhances photocatalytic oxygenation reactivity
  Shunichi Fukuzumi, Kaoru Doi, Akinori Itoh, Tomoyoshi Suenobu, Kei Ohkubo, Yusuke Yamada, and Kenneth D. Karlin
  
  PNAS September 25, 2012 109 (39) 15572-15577; https://doi.org/10.1073/pnas.1119994109
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  Mimicking the electron transfer chain in photosystem II with a molecular triad thermodynamically capable of water oxidation
  Jackson D. Megiatto Jr., Antaeres Antoniuk-Pablant, Benjamin D. Sherman, Gerdenis Kodis, Miguel Gervaldo, Thomas A. Moore, Ana L. Moore, and Devens Gust
  
  PNAS September 25, 2012 109 (39) 15578-15583; https://doi.org/10.1073/pnas.1118348109
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  Highly efficient and robust molecular ruthenium catalysts for water oxidation
  Lele Duan, Carlos Moyses Araujo, Mårten S.G. Ahlquist, and Licheng Sun
  
  PNAS September 25, 2012 109 (39) 15584-15588; https://doi.org/10.1073/pnas.1118347109
- You have access
  Catalytic hydrogen evolution from a covalently linked dicobaloxime
  Carolyn N. Valdez, Jillian L. Dempsey, Bruce S. Brunschwig, Jay R. Winkler, and Harry B. Gray
  
  PNAS September 25, 2012 109 (39) 15589-15593; https://doi.org/10.1073/pnas.1118329109
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  Cobalt-dithiolene complexes for the photocatalytic and electrocatalytic reduction of protons in aqueous solutions
  William R. McNamara, Zhiji Han, Chih-Juo (Madeline) Yin, William W. Brennessel, Patrick L. Holland, and Richard Eisenberg
  
  PNAS September 25, 2012 109 (39) 15594-15599; https://doi.org/10.1073/pnas.1120757109
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  Similarities of artificial photosystems by ruthenium oxo complexes and native water splitting systems
  Koji Tanaka, Hiroshi Isobe, Shusuke Yamanaka, and Kizashi Yamaguchi
  
  PNAS September 25, 2012 109 (39) 15600-15605; https://doi.org/10.1073/pnas.1120705109
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  Splitting CO₂ into CO and O₂ by a single catalyst
  Zuofeng Chen, Javier J. Concepcion, M. Kyle Brennaman, Peng Kang, Michael R. Norris, Paul G. Hoertz, and Thomas J. Meyer
  
  PNAS September 25, 2012 109 (39) 15606-15611; https://doi.org/10.1073/pnas.1203122109
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  Improving the efficiency of water splitting in dye-sensitized solar cells by using a biomimetic electron transfer mediator
  Yixin Zhao, John R. Swierk, Jackson D. Megiatto Jr, Benjamin Sherman, W. Justin Youngblood, Dongdong Qin, Deanna M. Lentz, Ana L. Moore, Thomas A. Moore, Devens Gust, and Thomas E. Mallouk
  
  PNAS September 25, 2012 109 (39) 15612-15616; https://doi.org/10.1073/pnas.1118339109
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  Interplay of oxygen-evolution kinetics and photovoltaic power curves on the construction of artificial leaves
  Yogesh Surendranath, D. Kwabena Bediako, and Daniel G. Nocera
  
  PNAS September 25, 2012 109 (39) 15617-15621; https://doi.org/10.1073/pnas.1118341109
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  Evaluation and optimization of mass transport of redox species in silicon microwire-array photoelectrodes
  Chengxiang Xiang, Andrew C. Meng, and Nathan S. Lewis
  
  PNAS September 25, 2012 109 (39) 15622-15627; https://doi.org/10.1073/pnas.1118338109
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  Visible light generation of I–I bonds by Ru-tris(diimine) excited states
  Byron H. Farnum, Jeffrey J. Jou, and Gerald J. Meyer
  
  PNAS September 25, 2012 109 (39) 15628-15633; https://doi.org/10.1073/pnas.1118340109
- You have access
  Acidic ionic liquid/water solution as both medium and proton source for electrocatalytic H₂ evolution by [Ni(P₂N₂)₂]²⁺ complexes
  Douglas H. Pool, Michael P. Stewart, Molly O’Hagan, Wendy J. Shaw, John A. S. Roberts, R. Morris Bullock, and Daniel L. DuBois
  
  PNAS September 25, 2012 109 (39) 15634-15639; https://doi.org/10.1073/pnas.1120208109
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  Dynamics of photogenerated holes in surface modified α-Fe₂O₃ photoanodes for solar water splitting
  Monica Barroso, Camilo A. Mesa, Stephanie R. Pendlebury, Alexander J. Cowan, Takashi Hisatomi, Kevin Sivula, Michael Grätzel, David R. Klug, and James R. Durrant
  
  PNAS September 25, 2012 109 (39) 15640-15645; https://doi.org/10.1073/pnas.1118326109
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  Kinetic and structural studies, origins of selectivity, and interfacial charge transfer in the artificial photosynthesis of CO
  Jonathan M. Smieja, Eric E. Benson, Bhupendra Kumar, Kyle A. Grice, Candace S. Seu, Alexander J. M. Miller, James M. Mayer, and Clifford P. Kubiak
  
  PNAS September 25, 2012 109 (39) 15646-15650; https://doi.org/10.1073/pnas.1119863109
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  Ultrafast photodriven intramolecular electron transfer from an iridium-based water-oxidation catalyst to perylene diimide derivatives
  Michael T. Vagnini, Amanda L. Smeigh, James D. Blakemore, Samuel W. Eaton, Nathan D. Schley, Francis D’Souza, Robert H. Crabtree, Gary W. Brudvig, Dick T. Co, and Michael R. Wasielewski
  
  PNAS September 25, 2012 109 (39) 15651-15656; https://doi.org/10.1073/pnas.1202075109
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  Calculation of thermodynamic hydricities and the design of hydride donors for CO₂ reduction
  James T. Muckerman, Patrick Achord, Carol Creutz, Dmitry E. Polyansky, and Etsuko Fujita
  
  PNAS September 25, 2012 109 (39) 15657-15662; https://doi.org/10.1073/pnas.1201026109
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  Insights into proton-coupled electron transfer mechanisms of electrocatalytic H₂ oxidation and production
  Samantha Horvath, Laura E. Fernandez, Alexander V. Soudackov, and Sharon Hammes-Schiffer
  
  PNAS September 25, 2012 109 (39) 15663-15668; https://doi.org/10.1073/pnas.1118333109
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  Theoretical study of catalytic mechanism for single-site water oxidation process
  Xiangsong Lin, Xiangqian Hu, Javier J. Concepcion, Zuofeng Chen, Shubin Liu, Thomas J. Meyer, and Weitao Yang
  
  PNAS September 25, 2012 109 (39) 15669-15672; https://doi.org/10.1073/pnas.1118344109
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  Photocatalytic CO₂ reduction with high turnover frequency and selectivity of formic acid formation using Ru(II) multinuclear complexes
  Yusuke Tamaki, Tatsuki Morimoto, Kazuhide Koike, and Osamu Ishitani
  
  PNAS September 25, 2012 109 (39) 15673-15678; https://doi.org/10.1073/pnas.1118336109

Physical Sciences

Applied Mathematics
- Open Access
  Parameter-free model discrimination criterion based on steady-state coplanarity
  Heather A. Harrington, Kenneth L. Ho, Thomas Thorne, and Michael P.H. Stumpf
  
  PNAS September 25, 2012 109 (39) 15746-15751; https://doi.org/10.1073/pnas.1117073109
Applied Physical Sciences
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  Saturation wind power potential and its implications for wind energy
  Mark Z. Jacobson and Cristina L. Archer
  
  PNAS September 25, 2012 109 (39) 15679-15684; https://doi.org/10.1073/pnas.1208993109
- Open Access
  Optimum inhomogeneity of local lattice distortions in La₂CuO_4+y
  Nicola Poccia, Alessandro Ricci, Gaetano Campi, Michela Fratini, Alessandro Puri, Daniele Di Gioacchino, Augusto Marcelli, Michael Reynolds, Manfred Burghammer, Naurang Lal Saini, Gabriel Aeppli, and Antonio Bianconi
  
  PNAS September 25, 2012 109 (39) 15685-15690; https://doi.org/10.1073/pnas.1208492109
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  Experimental results from a preclinical X-ray phase-contrast CT scanner
  Arne Tapfer, Martin Bech, Astrid Velroyen, Jan Meiser, Jürgen Mohr, Marco Walter, Joachim Schulz, Bart Pauwels, Peter Bruyndonckx, Xuan Liu, Alexander Sasov, and Franz Pfeiffer
  
  PNAS September 25, 2012 109 (39) 15691-15696; https://doi.org/10.1073/pnas.1207503109
Chemistry
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  Step-by-step self-assembled hybrids that feature control over energy and charge transfer
  Bruno Grimm, Julia Schornbaum, Hannelore Jasch, Olga Trukhina, Florian Wessendorf, Andreas Hirsch, Tomas Torres, and Dirk M. Guldi
  
  PNAS September 25, 2012 109 (39) 15565-15571; https://doi.org/10.1073/pnas.1113753109
- You have access
  Formation of a long-lived electron-transfer state in mesoporous silica-alumina composites enhances photocatalytic oxygenation reactivity
  Shunichi Fukuzumi, Kaoru Doi, Akinori Itoh, Tomoyoshi Suenobu, Kei Ohkubo, Yusuke Yamada, and Kenneth D. Karlin
  
  PNAS September 25, 2012 109 (39) 15572-15577; https://doi.org/10.1073/pnas.1119994109
- You have access
  Mimicking the electron transfer chain in photosystem II with a molecular triad thermodynamically capable of water oxidation
  Jackson D. Megiatto Jr., Antaeres Antoniuk-Pablant, Benjamin D. Sherman, Gerdenis Kodis, Miguel Gervaldo, Thomas A. Moore, Ana L. Moore, and Devens Gust
  
  PNAS September 25, 2012 109 (39) 15578-15583; https://doi.org/10.1073/pnas.1118348109
- You have access
  Highly efficient and robust molecular ruthenium catalysts for water oxidation
  Lele Duan, Carlos Moyses Araujo, Mårten S.G. Ahlquist, and Licheng Sun
  
  PNAS September 25, 2012 109 (39) 15584-15588; https://doi.org/10.1073/pnas.1118347109
- You have access
  Catalytic hydrogen evolution from a covalently linked dicobaloxime
  Carolyn N. Valdez, Jillian L. Dempsey, Bruce S. Brunschwig, Jay R. Winkler, and Harry B. Gray
  
  PNAS September 25, 2012 109 (39) 15589-15593; https://doi.org/10.1073/pnas.1118329109
- You have access
  Cobalt-dithiolene complexes for the photocatalytic and electrocatalytic reduction of protons in aqueous solutions
  William R. McNamara, Zhiji Han, Chih-Juo (Madeline) Yin, William W. Brennessel, Patrick L. Holland, and Richard Eisenberg
  
  PNAS September 25, 2012 109 (39) 15594-15599; https://doi.org/10.1073/pnas.1120757109
- You have access
  Similarities of artificial photosystems by ruthenium oxo complexes and native water splitting systems
  Koji Tanaka, Hiroshi Isobe, Shusuke Yamanaka, and Kizashi Yamaguchi
  
  PNAS September 25, 2012 109 (39) 15600-15605; https://doi.org/10.1073/pnas.1120705109
- You have access
  Splitting CO₂ into CO and O₂ by a single catalyst
  Zuofeng Chen, Javier J. Concepcion, M. Kyle Brennaman, Peng Kang, Michael R. Norris, Paul G. Hoertz, and Thomas J. Meyer
  
  PNAS September 25, 2012 109 (39) 15606-15611; https://doi.org/10.1073/pnas.1203122109
- You have access
  Improving the efficiency of water splitting in dye-sensitized solar cells by using a biomimetic electron transfer mediator
  Yixin Zhao, John R. Swierk, Jackson D. Megiatto Jr, Benjamin Sherman, W. Justin Youngblood, Dongdong Qin, Deanna M. Lentz, Ana L. Moore, Thomas A. Moore, Devens Gust, and Thomas E. Mallouk
  
  PNAS September 25, 2012 109 (39) 15612-15616; https://doi.org/10.1073/pnas.1118339109
- You have access
  Interplay of oxygen-evolution kinetics and photovoltaic power curves on the construction of artificial leaves
  Yogesh Surendranath, D. Kwabena Bediako, and Daniel G. Nocera
  
  PNAS September 25, 2012 109 (39) 15617-15621; https://doi.org/10.1073/pnas.1118341109
- You have access
  Evaluation and optimization of mass transport of redox species in silicon microwire-array photoelectrodes
  Chengxiang Xiang, Andrew C. Meng, and Nathan S. Lewis
  
  PNAS September 25, 2012 109 (39) 15622-15627; https://doi.org/10.1073/pnas.1118338109
- You have access
  Visible light generation of I–I bonds by Ru-tris(diimine) excited states
  Byron H. Farnum, Jeffrey J. Jou, and Gerald J. Meyer
  
  PNAS September 25, 2012 109 (39) 15628-15633; https://doi.org/10.1073/pnas.1118340109
- You have access
  Acidic ionic liquid/water solution as both medium and proton source for electrocatalytic H₂ evolution by [Ni(P₂N₂)₂]²⁺ complexes
  Douglas H. Pool, Michael P. Stewart, Molly O’Hagan, Wendy J. Shaw, John A. S. Roberts, R. Morris Bullock, and Daniel L. DuBois
  
  PNAS September 25, 2012 109 (39) 15634-15639; https://doi.org/10.1073/pnas.1120208109
- You have access
  Dynamics of photogenerated holes in surface modified α-Fe₂O₃ photoanodes for solar water splitting
  Monica Barroso, Camilo A. Mesa, Stephanie R. Pendlebury, Alexander J. Cowan, Takashi Hisatomi, Kevin Sivula, Michael Grätzel, David R. Klug, and James R. Durrant
  
  PNAS September 25, 2012 109 (39) 15640-15645; https://doi.org/10.1073/pnas.1118326109
- You have access
  Kinetic and structural studies, origins of selectivity, and interfacial charge transfer in the artificial photosynthesis of CO
  Jonathan M. Smieja, Eric E. Benson, Bhupendra Kumar, Kyle A. Grice, Candace S. Seu, Alexander J. M. Miller, James M. Mayer, and Clifford P. Kubiak
  
  PNAS September 25, 2012 109 (39) 15646-15650; https://doi.org/10.1073/pnas.1119863109
- You have access
  Ultrafast photodriven intramolecular electron transfer from an iridium-based water-oxidation catalyst to perylene diimide derivatives
  Michael T. Vagnini, Amanda L. Smeigh, James D. Blakemore, Samuel W. Eaton, Nathan D. Schley, Francis D’Souza, Robert H. Crabtree, Gary W. Brudvig, Dick T. Co, and Michael R. Wasielewski
  
  PNAS September 25, 2012 109 (39) 15651-15656; https://doi.org/10.1073/pnas.1202075109
- You have access
  Calculation of thermodynamic hydricities and the design of hydride donors for CO₂ reduction
  James T. Muckerman, Patrick Achord, Carol Creutz, Dmitry E. Polyansky, and Etsuko Fujita
  
  PNAS September 25, 2012 109 (39) 15657-15662; https://doi.org/10.1073/pnas.1201026109
- You have access
  Insights into proton-coupled electron transfer mechanisms of electrocatalytic H₂ oxidation and production
  Samantha Horvath, Laura E. Fernandez, Alexander V. Soudackov, and Sharon Hammes-Schiffer
  
  PNAS September 25, 2012 109 (39) 15663-15668; https://doi.org/10.1073/pnas.1118333109
- You have access
  Theoretical study of catalytic mechanism for single-site water oxidation process
  Xiangsong Lin, Xiangqian Hu, Javier J. Concepcion, Zuofeng Chen, Shubin Liu, Thomas J. Meyer, and Weitao Yang
  
  PNAS September 25, 2012 109 (39) 15669-15672; https://doi.org/10.1073/pnas.1118344109
- You have access
  Photocatalytic CO₂ reduction with high turnover frequency and selectivity of formic acid formation using Ru(II) multinuclear complexes
  Yusuke Tamaki, Tatsuki Morimoto, Kazuhide Koike, and Osamu Ishitani
  
  PNAS September 25, 2012 109 (39) 15673-15678; https://doi.org/10.1073/pnas.1118336109
- You have access
  In situ observation of peptide bond formation at the water–air interface
  Elizabeth C. Griffith and Veronica Vaida
  
  PNAS September 25, 2012 109 (39) 15697-15701; https://doi.org/10.1073/pnas.1210029109
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  Folate binding site of flavin-dependent thymidylate synthase
  Eric M. Koehn, Laura L. Perissinotti, Salah Moghram, Arjun Prabhakar, Scott A. Lesley, Irimpan I. Mathews, and Amnon Kohen
  
  PNAS September 25, 2012 109 (39) 15722-15727; https://doi.org/10.1073/pnas.1206077109
- Open Access
  Domain–domain interactions in full-length p53 and a specific DNA complex probed by methyl NMR spectroscopy
  Michal Bista, Stefan M. Freund, and Alan R. Fersht
  
  PNAS September 25, 2012 109 (39) 15752-15756; https://doi.org/10.1073/pnas.1214176109
Earth, Atmospheric, and Planetary Sciences
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  Silurian horseshoe crab illuminates the evolution of arthropod limbs
  Derek E. G. Briggs, Derek J. Siveter, David J. Siveter, Mark D. Sutton, Russell J. Garwood, and David Legg
  
  PNAS September 25, 2012 109 (39) 15702-15705; https://doi.org/10.1073/pnas.1205875109
Environmental Sciences
- Open Access
  Suomi satellite brings to light a unique frontier of nighttime environmental sensing capabilities
  Steven D. Miller, Stephen P. Mills, Christopher D. Elvidge, Daniel T. Lindsey, Thomas F. Lee, and Jeffrey D. Hawkins
  
  PNAS September 25, 2012 109 (39) 15706-15711; https://doi.org/10.1073/pnas.1207034109
Physics
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  Pointillist structural color in Pollia fruit
  Silvia Vignolini, Paula J. Rudall, Alice V. Rowland, Alison Reed, Edwige Moyroud, Robert B. Faden, Jeremy J. Baumberg, Beverley J. Glover, and Ullrich Steiner
  
  PNAS September 25, 2012 109 (39) 15712-15715; https://doi.org/10.1073/pnas.1210105109

Biological Sciences

Anthropology
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  Generation times in wild chimpanzees and gorillas suggest earlier divergence times in great ape and human evolution
  From the Cover
  
  Kevin E. Langergraber, Kay Prüfer, Carolyn Rowney, Christophe Boesch, Catherine Crockford, Katie Fawcett, Eiji Inoue, Miho Inoue-Muruyama, John C. Mitani, Martin N. Muller, Martha M. Robbins, Grit Schubert, Tara S. Stoinski, Bence Viola, David Watts, Roman M. Wittig, Richard W. Wrangham, Klaus Zuberbühler, Svante Pääbo, and Linda Vigilant
  
  PNAS September 25, 2012 109 (39) 15716-15721; https://doi.org/10.1073/pnas.1211740109
Biochemistry
- Open Access
  Cas9–crRNA ribonucleoprotein complex mediates specific DNA cleavage for adaptive immunity in bacteria
  Giedrius Gasiunas, Rodolphe Barrangou, Philippe Horvath, and Virginijus Siksnys
  
  PNAS September 25, 2012 109 (39) E2579-E2586; https://doi.org/10.1073/pnas.1208507109
- You have access
  Folate binding site of flavin-dependent thymidylate synthase
  Eric M. Koehn, Laura L. Perissinotti, Salah Moghram, Arjun Prabhakar, Scott A. Lesley, Irimpan I. Mathews, and Amnon Kohen
  
  PNAS September 25, 2012 109 (39) 15722-15727; https://doi.org/10.1073/pnas.1206077109
- You have access
  Selection of antibodies that regulate phenotype from intracellular combinatorial antibody libraries
  Hongkai Zhang, Ian A. Wilson, and Richard A. Lerner
  
  PNAS September 25, 2012 109 (39) 15728-15733; https://doi.org/10.1073/pnas.1214275109
- You have access
  Reversible cycling between cysteine persulfide-ligated [2Fe-2S] and cysteine-ligated [4Fe-4S] clusters in the FNR regulatory protein
  Bo Zhang, Jason C. Crack, Sowmya Subramanian, Jeffrey Green, Andrew J. Thomson, Nick E. Le Brun, and Michael K. Johnson
  
  PNAS September 25, 2012 109 (39) 15734-15739; https://doi.org/10.1073/pnas.1208787109
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  Revisiting the contribution of negative charges on the chaperonin cage wall to the acceleration of protein folding
  Fumihiro Motojima, Yuko Motojima-Miyazaki, and Masasuke Yoshida
  
  PNAS September 25, 2012 109 (39) 15740-15745; https://doi.org/10.1073/pnas.1204547109
Biophysics and Computational Biology
- Open Access
  Parameter-free model discrimination criterion based on steady-state coplanarity
  Heather A. Harrington, Kenneth L. Ho, Thomas Thorne, and Michael P.H. Stumpf
  
  PNAS September 25, 2012 109 (39) 15746-15751; https://doi.org/10.1073/pnas.1117073109
- Open Access
  Domain–domain interactions in full-length p53 and a specific DNA complex probed by methyl NMR spectroscopy
  Michal Bista, Stefan M. Freund, and Alan R. Fersht
  
  PNAS September 25, 2012 109 (39) 15752-15756; https://doi.org/10.1073/pnas.1214176109
- You have access
  A kinetic model of rapidly reversible nonphotochemical quenching
  Julia Zaks, Kapil Amarnath, David M. Kramer, Krishna K. Niyogi, and Graham R. Fleming
  
  PNAS September 25, 2012 109 (39) 15757-15762; https://doi.org/10.1073/pnas.1211017109
- You have access
  Topography of funneled landscapes determines the thermodynamics and kinetics of protein folding
  Jin Wang, Ronaldo J. Oliveira, Xiakun Chu, Paul C. Whitford, Jorge Chahine, Wei Han, Erkang Wang, José N. Onuchic, and Vitor B.P. Leite
  
  PNAS September 25, 2012 109 (39) 15763-15768; https://doi.org/10.1073/pnas.1212842109
- Open Access
  Evidence that viral RNAs have evolved for efficient, two-stage packaging
  Alexander Borodavka, Roman Tuma, and Peter G. Stockley
  
  PNAS September 25, 2012 109 (39) 15769-15774; https://doi.org/10.1073/pnas.1204357109
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  Supertertiary structure of the synaptic MAGuK scaffold proteins is conserved
  James J. McCann, Liqiang Zheng, Daniel Rohrbeck, Suren Felekyan, Ralf Kühnemuth, R. Bryan Sutton, Claus A. M. Seidel, and Mark E. Bowen
  
  PNAS September 25, 2012 109 (39) 15775-15780; https://doi.org/10.1073/pnas.1200254109
Cell Biology
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  Ultrastructural dynamics of proteins involved in endocytic budding
  Fatima-Zahra Idrissi, Anabel Blasco, Anna Espinal, and María Isabel Geli
  
  PNAS September 25, 2012 109 (39) E2587-E2594; https://doi.org/10.1073/pnas.1202789109
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  ECM microenvironment regulates collective migration and local dissemination in normal and malignant mammary epithelium
  Kim-Vy Nguyen-Ngoc, Kevin J. Cheung, Audrey Brenot, Eliah R. Shamir, Ryan S. Gray, William C. Hines, Paul Yaswen, Zena Werb, and Andrew J. Ewald
  
  PNAS September 25, 2012 109 (39) E2595-E2604; https://doi.org/10.1073/pnas.1212834109
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  Intrinsically disordered proteins aggregate at fungal cell-to-cell channels and regulate intercellular connectivity
  Julian Lai, Chuan Hock Koh, Monika Tjota, Laurent Pieuchot, Vignesh Raman, Karthik Balakrishna Chandrababu, Daiwen Yang, Limsoon Wong, and Gregory Jedd
  
  PNAS September 25, 2012 109 (39) 15781-15786; https://doi.org/10.1073/pnas.1207467109
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  TBC1D16 is a Rab4A GTPase activating protein that regulates receptor recycling and EGF receptor signaling
  Basem S. Goueli, Marianne Broome Powell, Elizabeth C. Finger, and Suzanne R. Pfeffer
  
  PNAS September 25, 2012 109 (39) 15787-15792; https://doi.org/10.1073/pnas.1204540109
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  Dinoflagellate tandem array gene transcripts are highly conserved and not polycistronic
  Mathieu Beauchemin, Sougata Roy, Philippe Daoust, Steve Dagenais-Bellefeuille, Thierry Bertomeu, Louis Letourneau, B. Franz Lang, and David Morse
  
  PNAS September 25, 2012 109 (39) 15793-15798; https://doi.org/10.1073/pnas.1206683109
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  Dual modes of motility at the leading edge of migrating epithelial cell sheets
  Jes K. Klarlund
  
  PNAS September 25, 2012 109 (39) 15799-15804; https://doi.org/10.1073/pnas.1210992109
- Open Access
  cAMP response element-binding protein promotes gliomagenesis by modulating the expression of oncogenic microRNA-23a
  Xiaochao Tan, Shan Wang, Liyuan Zhu, Chao Wu, Bin Yin, Jizong Zhao, Jiangang Yuan, Boqin Qiang, and Xiaozhong Peng
  
  PNAS September 25, 2012 109 (39) 15805-15810; https://doi.org/10.1073/pnas.1207787109
- Open Access
  Compartmentalization of superoxide dismutase 1 (SOD1G93A) aggregates determines their toxicity
  Sarah J. Weisberg, Roman Lyakhovetsky, Ayelet-chen Werdiger, Aaron D. Gitler, Yoav Soen, and Daniel Kaganovich
  
  PNAS September 25, 2012 109 (39) 15811-15816; https://doi.org/10.1073/pnas.1205829109
Developmental Biology
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  Hedgehog-responsive mesenchymal clusters direct patterning and emergence of intestinal villi
  Katherine D. Walton, Åsa Kolterud, Michael J. Czerwinski, Michael J. Bell, Ajay Prakash, Juhi Kushwaha, Ann S. Grosse, Santiago Schnell, and Deborah L. Gumucio
  
  PNAS September 25, 2012 109 (39) 15817-15822; https://doi.org/10.1073/pnas.1205669109
Ecology
- Open Access
  Models and tests of optimal density and maximal yield for crop plants
  From the Cover
  
  Jianming Deng, Jinzhi Ran, Zhiqiang Wang, Zhexuan Fan, Genxuan Wang, Mingfei Ji, Jing Liu, Yun Wang, Jianquan Liu, and James H. Brown
  
  PNAS September 25, 2012 109 (39) 15823-15828; https://doi.org/10.1073/pnas.1210955109
- You have access
  Allometric scaling of population variance with mean body size is predicted from Taylor’s law and density-mass allometry
  Joel E. Cohen, Meng Xu, and William S. F. Schuster
  
  PNAS September 25, 2012 109 (39) 15829-15834; https://doi.org/10.1073/pnas.1212883109
Evolution
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  Silurian horseshoe crab illuminates the evolution of arthropod limbs
  Derek E. G. Briggs, Derek J. Siveter, David J. Siveter, Mark D. Sutton, Russell J. Garwood, and David Legg
  
  PNAS September 25, 2012 109 (39) 15702-15705; https://doi.org/10.1073/pnas.1205875109
- You have access
  Phylogenies reveal predictive power of traditional medicine in bioprospecting
  C. Haris Saslis-Lagoudakis, Vincent Savolainen, Elizabeth M. Williamson, Félix Forest, Steven J. Wagstaff, Sushim R. Baral, Mark F. Watson, Colin A. Pendry, and Julie A. Hawkins
  
  PNAS September 25, 2012 109 (39) 15835-15840; https://doi.org/10.1073/pnas.1202242109
- Open Access
  Position-dependent correlations between DNA methylation and the evolutionary rates of mammalian coding exons
  Trees-Juen Chuang, Feng-Chi Chen, and Yen-Zho Chen
  
  PNAS September 25, 2012 109 (39) 15841-15846; https://doi.org/10.1073/pnas.1208214109
Genetics
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  Epistasis dominates the genetic architecture of Drosophila quantitative traits
  Inaugural Article
  
  Wen Huang, Stephen Richards, Mary Anna Carbone, Dianhui Zhu, Robert R. H. Anholt, Julien F. Ayroles, Laura Duncan, Katherine W. Jordan, Faye Lawrence, Michael M. Magwire, Crystal B. Warner, Kerstin Blankenburg, Yi Han, Mehwish Javaid, Joy Jayaseelan, Shalini N. Jhangiani, Donna Muzny, Fiona Ongeri, Lora Perales, Yuan-Qing Wu, Yiqing Zhang, Xiaoyan Zou, Eric A. Stone, Richard A. Gibbs, and Trudy F. C. Mackay
  
  PNAS September 25, 2012 109 (39) 15553-15559; https://doi.org/10.1073/pnas.1213423109
- Open Access
  Genetic composition of yield heterosis in an elite rice hybrid
  Gang Zhou, Ying Chen, Wen Yao, Chengjun Zhang, Weibo Xie, Jinping Hua, Yongzhong Xing, Jinghua Xiao, and Qifa Zhang
  
  PNAS September 25, 2012 109 (39) 15847-15852; https://doi.org/10.1073/pnas.1214141109
- You have access
  p21-Activated kinase interacts with Wnt signaling to regulate tissue polarity and gene expression
  Kah Yee Goh, Natalie Weili Ng, Thilo Hagen, and Takao Inoue
  
  PNAS September 25, 2012 109 (39) 15853-15858; https://doi.org/10.1073/pnas.1120795109
Immunology
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  Regulation of immunity and disease resistance by commensal microbes and chromatin modifications during zebrafish development
  Jorge Galindo-Villegas, Diana García-Moreno, Sofia de Oliveira, José Meseguer, and Victoriano Mulero
  
  PNAS September 25, 2012 109 (39) E2605-E2614; https://doi.org/10.1073/pnas.1209920109
- You have access
  The immunodominant myeloperoxidase T-cell epitope induces local cell-mediated injury in antimyeloperoxidase glomerulonephritis
  Joshua D. Ooi, Janet Chang, Michael J. Hickey, Dorin-Bogdan Borza, Lars Fugger, Stephen R. Holdsworth, and A. Richard Kitching
  
  PNAS September 25, 2012 109 (39) E2615-E2624; https://doi.org/10.1073/pnas.1210147109
- You have access
  A mouse model for HIV-1 entry
  John Pietzsch, Henning Gruell, Stylianos Bournazos, Bridget M. Donovan, Florian Klein, Ron Diskin, Michael S. Seaman, Pamela J. Bjorkman, Jeffrey V. Ravetch, Alexander Ploss, and Michel C. Nussenzweig
  
  PNAS September 25, 2012 109 (39) 15859-15864; https://doi.org/10.1073/pnas.1213409109
- You have access
  Chromatin conformation governs T-cell receptor Jβ gene segment usage
  Wilfred Ndifon, Hilah Gal, Eric Shifrut, Rina Aharoni, Nissan Yissachar, Nir Waysbort, Shlomit Reich-Zeliger, Ruth Arnon, and Nir Friedman
  
  PNAS September 25, 2012 109 (39) 15865-15870; https://doi.org/10.1073/pnas.1203916109
- You have access
  Single-cell analysis of early B-lymphocyte development suggests independent regulation of lineage specification and commitment in vivo
  Sasan Zandi, Josefine Åhsberg, Panagiotis Tsapogas, Jenny Stjernberg, Hong Qian, and Mikael Sigvardsson
  
  PNAS September 25, 2012 109 (39) 15871-15876; https://doi.org/10.1073/pnas.1210144109
- You have access
  T cells engineered with a T cell receptor against the prostate antigen TARP specifically kill HLA-A2⁺ prostate and breast cancer cells
  Victoria Hillerdal, Berith Nilsson, Björn Carlsson, Fredrik Eriksson, and Magnus Essand
  
  PNAS September 25, 2012 109 (39) 15877-15881; https://doi.org/10.1073/pnas.1209042109
- You have access
  Altered Ig levels and antibody responses in mice deficient for the Fc receptor for IgM (FcμR)
  Kazuhito Honjo, Yoshiki Kubagawa, Dewitt M. Jones, Brian Dizon, Zilu Zhu, Hiroshi Ohno, Shozo Izui, John F. Kearney, and Hiromi Kubagawa
  
  PNAS September 25, 2012 109 (39) 15882-15887; https://doi.org/10.1073/pnas.1206567109
Medical Sciences
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  Oral advanced glycation endproducts (AGEs) promote insulin resistance and diabetes by depleting the antioxidant defenses AGE receptor-1 and sirtuin 1
  From the Cover
  
  Weijing Cai, Maya Ramdas, Li Zhu, Xue Chen, Gary E. Striker, and Helen Vlassara
  
  PNAS September 25, 2012 109 (39) 15888-15893; https://doi.org/10.1073/pnas.1205847109
- You have access
  Collaborative interplay between FGF-2 and VEGF-C promotes lymphangiogenesis and metastasis
  Renhai Cao, Hong Ji, Ninghan Feng, Yin Zhang, Xiaojuan Yang, Patrik Andersson, Yuping Sun, Katerina Tritsaris, Anker Jon Hansen, Steen Dissing, and Yihai Cao
  
  PNAS September 25, 2012 109 (39) 15894-15899; https://doi.org/10.1073/pnas.1208324109
Microbiology
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  Fusion activation by a headless parainfluenza virus 5 hemagglutinin-neuraminidase stalk suggests a modular mechanism for triggering
  Sayantan Bose, Aarohi Zokarkar, Brett D. Welch, George P. Leser, Theodore S. Jardetzky, and Robert A. Lamb
  
  PNAS September 25, 2012 109 (39) E2625-E2634; https://doi.org/10.1073/pnas.1213813109
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  Virulence and transmissibility of H1N2 influenza virus in ferrets imply the continuing threat of triple-reassortant swine viruses
  Philippe Noriel Q. Pascua, Min-Suk Song, Jun Han Lee, Yun Hee Baek, Hyeok-il Kwon, Su-Jin Park, Eun Hye Choi, Gyo-Jin Lim, Ok-Jun Lee, Si-Wook Kim, Chul-Joong Kim, Moon Hee Sung, Myung Hee Kim, Sun-Woo Yoon, Elena A. Govorkova, Richard J. Webby, Robert G. Webster, and Young-Ki Choi
  
  PNAS September 25, 2012 109 (39) 15900-15905; https://doi.org/10.1073/pnas.1205576109
- You have access
  Activation of Escherichia coli antiterminator BglG requires its phosphorylation
  Fabian M. Rothe, Thomas Bahr, Jörg Stülke, Bodo Rak, and Boris Görke
  
  PNAS September 25, 2012 109 (39) 15906-15911; https://doi.org/10.1073/pnas.1210443109
Neuroscience
- Open Access
  Mechanism for Hypocretin-mediated sleep-to-wake transitions
  Matthew E. Carter, Julia Brill, Patricia Bonnavion, John R. Huguenard, Ramon Huerta, and Luis de Lecea
  
  PNAS September 25, 2012 109 (39) E2635-E2644; https://doi.org/10.1073/pnas.1202526109
- You have access
  Brain imaging reveals neuronal circuitry underlying the crow’s perception of human faces
  John M. Marzluff, Robert Miyaoka, Satoshi Minoshima, and Donna J. Cross
  
  PNAS September 25, 2012 109 (39) 15912-15917; https://doi.org/10.1073/pnas.1206109109
- Open Access
  Progressive dopaminergic cell loss with unilateral-to-bilateral progression in a genetic model of Parkinson disease
  Maxime W. C. Rousseaux, Paul C. Marcogliese, Dianbo Qu, Sarah J. Hewitt, Sarah Seang, Raymond H. Kim, Ruth S. Slack, Michael G. Schlossmacher, Diane C. Lagace, Tak W. Mak, and David S. Park
  
  PNAS September 25, 2012 109 (39) 15918-15923; https://doi.org/10.1073/pnas.1205102109
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  Role of pro-brain-derived neurotrophic factor (proBDNF) to mature BDNF conversion in activity-dependent competition at developing neuromuscular synapses
  H. Shawn Je, Feng Yang, Yuanyuan Ji, Guhan Nagappan, Barbara L. Hempstead, and Bai Lu
  
  PNAS September 25, 2012 109 (39) 15924-15929; https://doi.org/10.1073/pnas.1207767109
Pharmacology
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  Targeting blood-brain barrier sphingolipid signaling reduces basal P-glycoprotein activity and improves drug delivery to the brain
  Ronald E. Cannon, John C. Peart, Brian T. Hawkins, Christopher R. Campos, and David S. Miller
  
  PNAS September 25, 2012 109 (39) 15930-15935; https://doi.org/10.1073/pnas.1203534109
- Open Access
  Endochin-like quinolones are highly efficacious against acute and latent experimental toxoplasmosis
  J. Stone Doggett, Aaron Nilsen, Isaac Forquer, Keith W. Wegmann, Lorraine Jones-Brando, Robert H. Yolken, Claudia Bordón, Susan A. Charman, Kasiram Katneni, Tracey Schultz, Jeremy N. Burrows, David J. Hinrichs, Brigitte Meunier, Vern B. Carruthers, and Michael K. Riscoe
  
  PNAS September 25, 2012 109 (39) 15936-15941; https://doi.org/10.1073/pnas.1208069109
Plant Biology
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  Pointillist structural color in Pollia fruit
  Silvia Vignolini, Paula J. Rudall, Alice V. Rowland, Alison Reed, Edwige Moyroud, Robert B. Faden, Jeremy J. Baumberg, Beverley J. Glover, and Ullrich Steiner
  
  PNAS September 25, 2012 109 (39) 15712-15715; https://doi.org/10.1073/pnas.1210105109
- You have access
  Degradation of the antiviral component ARGONAUTE1 by the autophagy pathway
  Benoît Derrien, Nicolas Baumberger, Mikhail Schepetilnikov, Corrado Viotti, Julia De Cillia, Véronique Ziegler-Graff, Erika Isono, Karin Schumacher, and Pascal Genschik
  
  PNAS September 25, 2012 109 (39) 15942-15946; https://doi.org/10.1073/pnas.1209487109
- You have access
  Rice phytochrome-interacting factor-like protein OsPIL1 functions as a key regulator of internode elongation and induces a morphological response to drought stress
  Daisuke Todaka, Kazuo Nakashima, Kyonoshin Maruyama, Satoshi Kidokoro, Yuriko Osakabe, Yusuke Ito, Satoko Matsukura, Yasunari Fujita, Kyouko Yoshiwara, Masaru Ohme-Takagi, Mikiko Kojima, Hitoshi Sakakibara, Kazuo Shinozaki, and Kazuko Yamaguchi-Shinozaki
  
  PNAS September 25, 2012 109 (39) 15947-15952; https://doi.org/10.1073/pnas.1207324109
Psychological and Cognitive Sciences
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  Auditory perception at the root of language learning
  Jutta L. Mueller, Angela D. Friederici, and Claudia Männel
  
  PNAS September 25, 2012 109 (39) 15953-15958; https://doi.org/10.1073/pnas.1204319109
- You have access
  Nonconscious activation of placebo and nocebo pain responses
  Karin B. Jensen, Ted J. Kaptchuk, Irving Kirsch, Jacqueline Raicek, Kara M. Lindstrom, Chantal Berna, Randy L. Gollub, Martin Ingvar, and Jian Kong
  
  PNAS September 25, 2012 109 (39) 15959-15964; https://doi.org/10.1073/pnas.1202056109

Correction

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Correction for Muckerman et al., Calculation of thermodynamic hydricities and the design of hydride donors for CO₂ reduction
PNAS September 25, 2012 109 (39) 15965; https://doi.org/10.1073/pnas.1214762109

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Chemical Approaches To Artificial Photosynthesis: Solar Fuels Special Feature (free online)

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Earth, Atmospheric, and Planetary Sciences

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