| | This journal provides immediate access to some articles. This Week in PNAS Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10751–10752. doi: 10.1073/iti2607104.PMCID: PMC1904126 Commentaries Breaking new ground to build bone Lauren A. Kingsley, John M. Chirgwin, and Theresa A. Guise Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10753–10754. Published online 2007 June 20. doi: 10.1073/pnas.0704357104.PMCID: PMC1904128 Language and genes: A new perspective on the origins of human cultural diversity Daniel Nettle Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10755–10756. Published online 2007 June 20. doi: 10.1073/pnas.0704517104.PMCID: PMC1904136 Vaccines are for dinner David W. Pascual Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10757–10758. Published online 2007 June 20. doi: 10.1073/pnas.0704516104.PMCID: PMC1904143 Profile Profile of Malcolm H. Chisholm H. Davis Tinsley Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10759–10761. Published online 2007 June 20. doi: 10.1073/pnas.0701259104.PMCID: PMC1904150 Physical Sciences Applied Mathematics Preferential attachment in sexual networks Birgitte Freiesleben de Blasio, Åke Svensson, and Fredrik Liljeros Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10762–10767. Published online 2007 June 19. doi: 10.1073/pnas.0611337104.PMCID: PMC1894568 Applied Physical Sciences Simulated and observed variability in ocean temperature and heat content K. M. AchutaRao, M. Ishii, B. D. Santer, P. J. Gleckler, K. E. Taylor, T. P. Barnett, D. W. Pierce, R. J. Stouffer, and T. M. L. Wigley Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10768–10773. Published online 2007 June 19. doi: 10.1073/pnas.0611375104.PMCID: PMC1904169 Chemistry Coupling of hydrogenic tunneling to active-site motion in the hydrogen radical transfer catalyzed by a coenzyme B12-dependent mutase Agnieszka Dybala-Defratyka, Piotr Paneth, Ruma Banerjee, and Donald G. Truhlar Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10774–10779. Published online 2007 June 20. doi: 10.1073/pnas.0702188104.PMCID: PMC1904141 Water-soluble porphyrins as a dual-function molecular imaging platform for MRI and fluorescence zinc sensing Xiao-an Zhang, Katherine S. Lovejoy, Alan Jasanoff, and Stephen J. Lippard Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10780–10785. Published online 2007 June 19. doi: 10.1073/pnas.0702393104.PMCID: PMC1904115 Computer Sciences Efficient supervised learning in networks with binary synapses Carlo Baldassi, Alfredo Braunstein, Nicolas Brunel, and Riccardo Zecchina Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11079–11084. Published online 2007 June 20. doi: 10.1073/pnas.0700324104.PMCID: PMC1904114 Engineering Biologically inspired crack trapping for enhanced adhesion Nicholas J. Glassmaker, Anand Jagota, Chung-Yuen Hui, William L. Noderer, and Manoj K. Chaudhury Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10786–10791. Published online 2007 June 20. doi: 10.1073/pnas.0703762104.PMCID: PMC1904130 Carbon nanotube-based synthetic gecko tapes Liehui Ge, Sunny Sethi, Lijie Ci, Pulickel M. Ajayan, and Ali Dhinojwala Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10792–10795. Published online 2007 June 19. doi: 10.1073/pnas.0703505104.PMCID: PMC1904109 Physics Effect of antiferromagnetic spin correlations on lattice distortion and charge ordering in Pr0.5Ca1.5MnO4 Songxue Chi, F. Ye, Pengcheng Dai, J. A. Fernandez-Baca, Q. Huang, J. W. Lynn, E. W. Plummer, R. Mathieu, Y. Kaneko, and Y. Tokura Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10796–10801. Published online 2007 June 19. doi: 10.1073/pnas.0704303104.PMCID: PMC1894565 Biological Sciences Anthropology The primate semicircular canal system and locomotion Fred Spoor, Theodore Garland, Jr., Gail Krovitz, Timothy M. Ryan, Mary T. Silcox, and Alan Walker Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10808–10812. Published online 2007 June 18. doi: 10.1073/pnas.0704250104.PMCID: PMC1892787 Biochemistry Coupling of hydrogenic tunneling to active-site motion in the hydrogen radical transfer catalyzed by a coenzyme B12-dependent mutase Agnieszka Dybala-Defratyka, Piotr Paneth, Ruma Banerjee, and Donald G. Truhlar Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10774–10779. Published online 2007 June 20. doi: 10.1073/pnas.0702188104.PMCID: PMC1904141 Regulation of the protein disulfide proteome by mitochondria in mammalian cells Yi Yang, Yanli Song, and Joseph Loscalzo Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10813–10817. Published online 2007 June 20. doi: 10.1073/pnas.0702027104.PMCID: PMC1904139 Structural basis of the recognition of a methylated histone tail by JMJD2A Zhongzhou Chen, Jianye Zang, John Kappler, Xia Hong, Frances Crawford, Qin Wang, Fei Lan, Chengyu Jiang, Johnathan Whetstine, Shaodong Dai, Kirk Hansen, Yang Shi, and Gongyi Zhang Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10818–10823. Published online 2007 June 13. doi: 10.1073/pnas.0704525104.PMCID: PMC1891149 Different modes of stop codon restriction by the Stylonychia and Paramecium eRF1 translation termination factors Sergey Lekomtsev, Petr Kolosov, Laure Bidou, Ludmila Frolova, Jean-Pierre Rousset, and Lev Kisselev Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10824–10829. Published online 2007 June 15. doi: 10.1073/pnas.0703887104.PMCID: PMC1904165 The yeast mitochondrial ADP/ATP carrier functions as a monomer in mitochondrial membranes Lisa Bamber, Marilyn Harding, Magnus Monné, Dirk-Jan Slotboom, and Edmund R. S. Kunji Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10830–10834. Published online 2007 June 12. doi: 10.1073/pnas.0703969104.PMCID: PMC1891095 The coactivator host cell factor-1 mediates Set1 and MLL1 H3K4 trimethylation at herpesvirus immediate early promoters for initiation of infection Aarthi Narayanan, William T. Ruyechan, and Thomas M. Kristie Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10835–10840. Published online 2007 June 19. doi: 10.1073/pnas.0704351104.PMCID: PMC1894567 Biophysics Water-soluble porphyrins as a dual-function molecular imaging platform for MRI and fluorescence zinc sensing Xiao-an Zhang, Katherine S. Lovejoy, Alan Jasanoff, and Stephen J. Lippard Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10780–10785. Published online 2007 June 19. doi: 10.1073/pnas.0702393104.PMCID: PMC1904115 Excluded volume, local structural cooperativity, and the polymer physics of protein folding rates Xianghong Qi and John J. Portman Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10841–10846. Published online 2007 June 14. doi: 10.1073/pnas.0609321104.PMCID: PMC1891811 From the Cover: Detection of fractional steps in cargo movement by the collective operation of kinesin-1 motors Cécile Leduc, Felix Ruhnow, Jonathon Howard, and Stefan Diez Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10847–10852. Published online 2007 June 14. doi: 10.1073/pnas.0701864104.PMCID: PMC1891812 Engineering nanoscale order into a designed protein fiber David Papapostolou, Andrew M. Smith, Edward D. T. Atkins, Seb J. Oliver, Maxim G. Ryadnov, Louise C. Serpell, and Derek N. Woolfson Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10853–10858. Published online 2007 June 13. doi: 10.1073/pnas.0700801104.PMCID: PMC1891150 Monomeric G protein-coupled receptor rhodopsin in solution activates its G protein transducin at the diffusion limit Oliver P. Ernst, Verena Gramse, Michael Kolbe, Klaus Peter Hofmann, and Martin Heck Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10859–10864. Published online 2007 June 19. doi: 10.1073/pnas.0701967104.PMCID: PMC1904172 Mechanisms of photoswitch conjugation and light activation of an ionotropic glutamate receptor Pau Gorostiza, Matthew Volgraf, Rika Numano, Stephanie Szobota, Dirk Trauner, and Ehud Y. Isacoff Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10865–10870. Published online 2007 June 19. doi: 10.1073/pnas.0701274104.PMCID: PMC1904147 Cell Biology Cleavage of the transactivation-inhibitory domain of p63 by caspases enhances apoptosis Berna S. Sayan, A. Emre Sayan, Ai Li Yang, Rami I. Aqeilan, Eleonora Candi, Gerald M. Cohen, Richard A. Knight, Carlo M. Croce, and Gerry Melino Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10871–10876. Published online 2007 June 20. doi: 10.1073/pnas.0700761104.PMCID: PMC1904122 Sir2p-dependent protein segregation gives rise to a superior reactive oxygen species management in the progeny of Saccharomyces cerevisiae Nika Erjavec and Thomas Nyström Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10877–10881. Published online 2007 June 20. doi: 10.1073/pnas.0701634104.PMCID: PMC1904135 p120 catenin regulates lamellipodial dynamics and cell adhesion in cooperation with cortactin Shlomit Boguslavsky, Inna Grosheva, Elad Landau, Michael Shtutman, Miriam Cohen, Katya Arnold, Elena Feinstein, Benjamin Geiger, and Alexander Bershadsky Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10882–10887. Published online 2007 June 18. doi: 10.1073/pnas.0702731104.PMCID: PMC1904144 Secretion of pleiotrophin stimulates breast cancer progression through remodeling of the tumor microenvironment Yunchao Chang, Masahiko Zuka, Pablo Perez-Pinera, Aurora Astudillo, Joanne Mortimer, James R. Berenson, and Thomas F. Deuel Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10888–10893. Published online 2007 June 19. doi: 10.1073/pnas.0704366104.PMCID: PMC1904160 Developmental Biology Canonical Wnt signaling is a positive regulator of mammalian cardiac progenitors Chulan Kwon, Joshua Arnold, Edward C. Hsiao, Makoto M. Taketo, Bruce R. Conklin, and Deepak Srivastava Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10894–10899. Published online 2007 June 18. doi: 10.1073/pnas.0704044104.PMCID: PMC1904134 Ecology Scaling metabolic rate fluctuations Fabio A. Labra, Pablo A. Marquet, and Francisco Bozinovic Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10900–10903. Published online 2007 June 19. doi: 10.1073/pnas.0704108104.PMCID: PMC1904129 Consumer versus resource control of producer diversity depends on ecosystem type and producer community structure Helmut Hillebrand, Daniel S. Gruner, Elizabeth T. Borer, Matthew E. S. Bracken, Elsa E. Cleland, James J. Elser, W. Stanley Harpole, Jacqueline T. Ngai, Eric W. Seabloom, Jonathan B. Shurin, and Jennifer E. Smith Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10904–10909. Published online 2007 June 20. doi: 10.1073/pnas.0701918104.PMCID: PMC1904146 Predicting fate from early connectivity in a social network David B. McDonald Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10910–10914. Published online 2007 June 18. doi: 10.1073/pnas.0701159104.PMCID: PMC1904119 Evolution Male twins reduce fitness of female co-twins in humans Virpi Lummaa, Jenni E. Pettay, and Andrew F. Russell Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10915–10920. Published online 2007 June 18. doi: 10.1073/pnas.0605875104.PMCID: PMC1904168 Coevolution between harmful male genitalia and female resistance in seed beetles Johanna Rönn, Mari Katvala, and Göran Arnqvist Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10921–10925. Published online 2007 June 15. doi: 10.1073/pnas.0701170104.PMCID: PMC1904142 Canalization of segmentation and its evolution in Drosophila Susan E. Lott, Martin Kreitman, Arnar Palsson, Elena Alekseeva, and Michael Z. Ludwig Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10926–10931. Published online 2007 June 14. doi: 10.1073/pnas.0701359104.PMCID: PMC1891814 The first skull of the earliest giant panda Changzhu Jin, Russell L. Ciochon, Wei Dong, Robert M. Hunt, Jr, Jinyi Liu, Marc Jaeger, and Qizhi Zhu Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10932–10937. Published online 2007 June 19. doi: 10.1073/pnas.0704198104.PMCID: PMC1904166 An empirical test of the concomitantly variable codon hypothesis Lauren M. F. Merlo, Mark Lunzer, and Antony M. Dean Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10938–10943. Published online 2007 June 19. doi: 10.1073/pnas.0701900104.PMCID: PMC1904112 Genetics From the Cover: Linguistic tone is related to the population frequency of the adaptive haplogroups of two brain size genes, ASPM and Microcephalin Dan Dediu and D. Robert Ladd Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10944–10949. Published online 2007 May 30. doi: 10.1073/pnas.0610848104.PMCID: PMC1904158 Processes of de novo duplication of human α-globin genes Kwan-Wood G. Lam and Alec J. Jeffreys Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10950–10955. Published online 2007 June 15. doi: 10.1073/pnas.0703856104.PMCID: PMC1904127 Chimeric Saccharomyces cerevisiae Msh6 protein with an Msh3 mispair-binding domain combines properties of both proteins Scarlet S. Shell, Christopher D. Putnam, and Richard D. Kolodner Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10956–10961. Published online 2007 June 15. doi: 10.1073/pnas.0704148104.PMCID: PMC1904149 Transposition of the rice miniature inverted repeat transposable element mPing in Arabidopsis thaliana Guojun Yang, Feng Zhang, C. Nathan Hancock, and Susan R. Wessler Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10962–10967. Published online 2007 June 19. doi: 10.1073/pnas.0702080104.PMCID: PMC1904124 ARF functions as a melanoma tumor suppressor by inducing p53-independent senescence Linan Ha, Takeshi Ichikawa, Miriam Anver, Ross Dickins, Scott Lowe, Norman E. Sharpless, Paul Krimpenfort, Ronald A. DePinho, Dorothy C. Bennett, Elena V. Sviderskaya, and Glenn Merlino Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10968–10973. Published online 2007 June 19. doi: 10.1073/pnas.0611638104.PMCID: PMC1904138 Epigenome scans and cancer genome sequencing converge on WNK2, a kinase-independent suppressor of cell growth Chibo Hong, K. Scott Moorefield, Peter Jun, Kenneth D. Aldape, Samir Kharbanda, Heidi S. Phillips, and Joseph F. Costello Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10974–10979. Published online 2007 June 19. doi: 10.1073/pnas.0700683104.PMCID: PMC1904113 Oncogenic All1 fusion proteins target Drosha-mediated microRNA processing Tatsuya Nakamura, Eli Canaani, and Carlo M. Croce Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10980–10985. Published online 2007 June 20. doi: 10.1073/pnas.0704559104.PMCID: PMC1904159 Immunology From the Cover: Rice-based mucosal vaccine as a global strategy for cold-chain- and needle-free vaccination Tomonori Nochi, Hidenori Takagi, Yoshikazu Yuki, Lijun Yang, Takehiro Masumura, Mio Mejima, Ushio Nakanishi, Akiko Matsumura, Akihiro Uozumi, Takachika Hiroi, Shigeto Morita, Kunisuke Tanaka, Fumio Takaiwa, and Hiroshi Kiyono Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10986–10991. Published online 2007 June 15. doi: 10.1073/pnas.0703766104.PMCID: PMC1904174 Memory CD8+ T cells are gatekeepers of the lymph node draining the site of viral infection Ren-Huan Xu, Min Fang, Andres Klein-Szanto, and Luis J. Sigal Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10992–10997. Published online 2007 June 19. doi: 10.1073/pnas.0701822104.PMCID: PMC1904153 Medical Sciences Amyloidogenic potential of foie gras Alan Solomon, Tina Richey, Charles L. Murphy, Deborah T. Weiss, Jonathan S. Wall, Gunilla T. Westermark, and Per Westermark Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10998–11001. Published online 2007 June 19. doi: 10.1073/pnas.0700848104.PMCID: PMC1894569 Interleukin 1 receptor antagonist mediates the antiinflammatory and antifibrotic effect of mesenchymal stem cells during lung injury Luis A. Ortiz, Maria DuTreil, Cheryl Fattman, Amitabh C. Pandey, German Torres, Kristina Go, and Donald G. Phinney Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11002–11007. Published online 2007 June 14. doi: 10.1073/pnas.0704421104.PMCID: PMC1891813 CD96 is a leukemic stem cell-specific marker in human acute myeloid leukemia Naoki Hosen, Christopher Y. Park, Naoya Tatsumi, Yusuke Oji, Haruo Sugiyama, Martin Gramatzki, Alan M. Krensky, and Irving L. Weissman Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11008–11013. Published online 2007 June 18. doi: 10.1073/pnas.0704271104.PMCID: PMC1904175 From the Cover: Roles of DNA topoisomerase II isozymes in chemotherapy and secondary malignancies Anna M. Azarova, Yi Lisa Lyu, Chao-Po Lin, Yuan-Chin Tsai, Johnson Yiu-Nam Lau, James C. Wang, and Leroy F. Liu Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11014–11019. Published online 2007 June 19. doi: 10.1073/pnas.0704002104.PMCID: PMC1904155 A double-blind randomized placebo-controlled phase III study of a Pseudomonas aeruginosa flagella vaccine in cystic fibrosis patients Gerd Döring, Christoph Meisner, Martin Stern, and for the Flagella Vaccine Trial Study Group Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11020–11025. Published online 2007 June 21. doi: 10.1073/pnas.0702403104.PMCID: PMC1904125 The lipofuscin fluorophore A2E perturbs cholesterol metabolism in retinal pigment epithelial cells Aparna Lakkaraju, Silvia C. Finnemann, and Enrique Rodriguez-Boulan Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11026–11031. Published online 2007 June 19. doi: 10.1073/pnas.0702504104.PMCID: PMC1904145 Microbiology Identification of a retroviral receptor used by an Envelope protein derived by peptide library screening Anindita Sarangi, Keith Bupp, and Monica J. Roth Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11032–11037. Published online 2007 June 20. doi: 10.1073/pnas.0704182104.PMCID: PMC1904118 Identification of Mycobacterium avium pathogenicity island important for macrophage and amoeba infection Lia Danelishvili, Martin Wu, Bernadette Stang, Melanie Harriff, Stuart Cirillo, Jeffrey Cirillo, Robert Bildfell, Brian Arbogast, and Luiz E. Bermudez Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11038–11043. Published online 2007 June 19. doi: 10.1073/pnas.0610746104.PMCID: PMC1904132 Toward a unifying model of malaria-induced channel activity Guillaume Bouyer, Stéphane Egée, and Serge L. Y. Thomas Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11044–11049. Published online 2007 June 18. doi: 10.1073/pnas.0704582104.PMCID: PMC1904111 Recovery of infectious murine norovirus using pol II-driven expression of full-length cDNA Vernon K. Ward, Christopher J. McCormick, Ian N. Clarke, Omar Salim, Christiane E. Wobus, Larissa B. Thackray, Herbert W. Virgin, IV, and Paul R. Lambden Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11050–11055. Published online 2007 June 20. doi: 10.1073/pnas.0700336104.PMCID: PMC1904157 Neuroscience Placebo effects on human μ-opioid activity during pain Tor D. Wager, David J. Scott, and Jon-Kar Zubieta Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11056–11061. Published online 2007 June 19. doi: 10.1073/pnas.0702413104.PMCID: PMC1894566 Cellular prion protein regulates β-secretase cleavage of the Alzheimer's amyloid precursor protein Edward T. Parkin, Nicole T. Watt, Ishrut Hussain, Elizabeth A. Eckman, Christopher B. Eckman, Jean C. Manson, Herbert N. Baybutt, Anthony J. Turner, and Nigel M. Hooper Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11062–11067. Published online 2007 June 15. doi: 10.1073/pnas.0609621104.PMCID: PMC1904148 Mapping of the preferred direction in the motor cortex Apostolos P. Georgopoulos, Hugo Merchant, Thomas Naselaris, and Bagrat Amirikian Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11068–11072. Published online 2007 June 14. doi: 10.1073/pnas.0611597104.PMCID: PMC1904163 Distinct brain networks for adaptive and stable task control in humans Nico U. F. Dosenbach, Damien A. Fair, Francis M. Miezin, Alexander L. Cohen, Kristin K. Wenger, Ronny A. T. Dosenbach, Michael D. Fox, Abraham Z. Snyder, Justin L. Vincent, Marcus E. Raichle, Bradley L. Schlaggar, and Steven E. Petersen Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11073–11078. Published online 2007 June 18. doi: 10.1073/pnas.0704320104.PMCID: PMC1904171 Efficient supervised learning in networks with binary synapses Carlo Baldassi, Alfredo Braunstein, Nicolas Brunel, and Riccardo Zecchina Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11079–11084. Published online 2007 June 20. doi: 10.1073/pnas.0700324104.PMCID: PMC1904114 Physiology Evidence for a signaling axis by which intestinal phosphate rapidly modulates renal phosphate reabsorption Theresa Berndt, Leslie F. Thomas, Theodore A. Craig, Stacy Sommer, Xujian Li, Eric J. Bergstralh, and Rajiv Kumar Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11085–11090. Published online 2007 June 12. doi: 10.1073/pnas.0704446104.PMCID: PMC1891094 Computer modeling of siRNA knockdown effects indicates an essential role of the Ca2+ channel α2δ-1 subunit in cardiac excitation–contraction coupling Petronel Tuluc, Georg Kern, Gerald J. Obermair, and Bernhard E. Flucher Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11091–11096. Published online 2007 June 11. doi: 10.1073/pnas.0700577104.PMCID: PMC1904133 Interleukin-18 controls energy homeostasis by suppressing appetite and feed efficiency Eric P. Zorrilla, Manuel Sanchez-Alavez, Shuei Sugama, Molly Brennan, Rosette Fernandez, Tamas Bartfai, and Bruno Conti Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11097–11102. Published online 2007 June 19. doi: 10.1073/pnas.0611523104.PMCID: PMC1904154 Chronic exposure to paclitaxel diminishes phosphoinositide signaling by calpain-mediated neuronal calcium sensor-1 degradation Wolfgang Boehmerle, Kun Zhang, Michael Sivula, Felix M. Heidrich, Yashang Lee, Sven-Eric Jordt, and Barbara E. Ehrlich Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11103–11108. Published online 2007 June 20. doi: 10.1073/pnas.0701546104.PMCID: PMC1904151 Plant Biology Molecular mechanism of thioredoxin regulation in photosynthetic A2B2-glyceraldehyde-3-phosphate dehydrogenase S. Fermani, F. Sparla, G. Falini, P. L. Martelli, R. Casadio, P. Pupillo, A. Ripamonti, and P. Trost Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11109–11114. Published online 2007 June 15. doi: 10.1073/pnas.0611636104.PMCID: PMC1904167 Interaction of a plant virus-encoded protein with the major nucleolar protein fibrillarin is required for systemic virus infection Sang Hyon Kim, Stuart MacFarlane, Natalia O. Kalinina, Daria V. Rakitina, Eugene V. Ryabov, Trudi Gillespie, Sophie Haupt, John W. S. Brown, and Michael Taliansky Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 11115–11120. Published online 2007 June 18. doi: 10.1073/pnas.0704632104.PMCID: PMC1904140 Social Sciences Economic Sciences From the Cover: Labor force participation and human capital increases in an aging population and implications for U.S. research investment Kenneth G. Manton, Gene R. Lowrimore, Arthur D. Ullian, XiLiang Gu, and H. Dennis Tolley Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10802–10807. Published online 2007 June 15. doi: 10.1073/pnas.0704185104.PMCID: PMC1892529 Psychology From the Cover: Linguistic tone is related to the population frequency of the adaptive haplogroups of two brain size genes, ASPM and Microcephalin Dan Dediu and D. Robert Ladd Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10944–10949. Published online 2007 May 30. doi: 10.1073/pnas.0610848104.PMCID: PMC1904158 Social Sciences Preferential attachment in sexual networks Birgitte Freiesleben de Blasio, Åke Svensson, and Fredrik Liljeros Proc Natl Acad Sci U S A. 2007 June 26; 104(26): 10762–10767. Published online 2007 June 19. doi: 10.1073/pnas.0611337104.PMCID: PMC1894568 |