| | This journal provides immediate access to some articles. Commentaries MCM proteins and checkpoint kinases get together at the fork David Shechter and Jean Gautier Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10845–10846. Published online 2004 July 19. doi: 10.1073/pnas.0404143101.PMCID: PMC503706 Living longer: Information revolution, population expansion, and modern human origins Karen Rosenberg Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10847–10848. Published online 2004 July 19. doi: 10.1073/pnas.0404198101.PMCID: PMC503707 Global organization of terrestrial plant–nutrient interactions Lars O. Hedin Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10849–10850. Published online 2004 July 19. doi: 10.1073/pnas.0404222101.PMCID: PMC503708 Physical Sciences Applied Mathematics Transparallel processing by hyperstrings Peter A. van der Helm Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10862–10867. Published online 2004 July 19. doi: 10.1073/pnas.0403402101.PMCID: PMC503711 Modeling a synthetic multicellular clock: Repressilators coupled by quorum sensing Jordi Garcia-Ojalvo, Michael B. Elowitz, and Steven H. Strogatz Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10955–10960. Published online 2004 July 15. doi: 10.1073/pnas.0307095101.PMCID: PMC503725 Chemistry Density functional theory study of adamantanediyl dications C10H142+ and protio-adamantyl dications C10H162+ Golam Rasul, George A. Olah, and G. K. Surya Prakash Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10868–10871. Published online 2004 July 19. doi: 10.1073/pnas.0404137101.PMCID: PMC503712 Design of a directed molecular network Gonen Ashkenasy, Reshma Jagasia, Maneesh Yadav, and M. Reza Ghadiri Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10872–10877. Published online 2004 July 15. doi: 10.1073/pnas.0402674101.PMCID: PMC503713 Geology From the Cover: Southern Peru desert shattered by the great 2001 earthquake: Implications for paleoseismic and paleo-El Niño–Southern Oscillation records David K. Keefer and Michael E. Moseley Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10878–10883. Published online 2004 July 19. doi: 10.1073/pnas.0404320101.PMCID: PMC491987 Mathematics Signature quantization and representations of compact Lie groups Victor Guillemin and Etienne Rassart Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10884–10889. Published online 2004 July 7. doi: 10.1073/pnas.0403173101.PMCID: PMC503714 Physics Cooperative action of coherent groups in broadly heterogeneous populations of interacting chemical oscillators A. S. Mikhailov, D. H. Zanette, Y. M. Zhai, I. Z. Kiss, and J. L. Hudson Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10890–10894. Published online 2004 July 19. doi: 10.1073/pnas.0402899101.PMCID: PMC503715 Biological Sciences Anthropology From the Cover: Southern Peru desert shattered by the great 2001 earthquake: Implications for paleoseismic and paleo-El Niño–Southern Oscillation records David K. Keefer and Michael E. Moseley Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10878–10883. Published online 2004 July 19. doi: 10.1073/pnas.0404320101.PMCID: PMC491987 From the Cover: Older age becomes common late in human evolution Rachel Caspari and Sang-Hee Lee Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10895–10900. Published online 2004 July 13. doi: 10.1073/pnas.0402857101.PMCID: PMC503716 Applied Biological Sciences MRI detection of single particles for cellular imaging Erik M. Shapiro, Stanko Skrtic, Kathryn Sharer, Jonathan M. Hill, Cynthia E. Dunbar, and Alan P. Koretsky Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10901–10906. Published online 2004 July 15. doi: 10.1073/pnas.0403918101.PMCID: PMC503717 Biochemistry Selective inhibition of the citrate-to-isocitrate reaction of cytosolic aconitase by phosphomimetic mutation of serine-711 Joseph S. Pitula, Kathryn M. Deck, Stephen L. Clarke, Sheila A. Anderson, Aparna Vasanthakumar, and Richard S. Eisenstein Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10907–10912. Published online 2004 July 19. doi: 10.1073/pnas.0404308101.PMCID: PMC503718 Formation and characterization of an all-ferrous Rieske cluster and stabilization of the [2Fe-2S]0 core by protonation Ellen J. Leggate, Eckhard Bill, Timm Essigke, G. Matthias Ullmann, and Judy Hirst Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10913–10918. Published online 2004 July 19. doi: 10.1073/pnas.0402711101.PMCID: PMC503719 Testosterone activates mitogen-activated protein kinase and the cAMP response element binding protein transcription factor in Sertoli cells Charity Fix, Cynthia Jordan, Patricia Cano, and William H. Walker Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10919–10924. Published online 2004 July 19. doi: 10.1073/pnas.0404278101.PMCID: PMC503720 Structure of the C-terminal domain of the clock protein KaiA in complex with a KaiC-derived peptide: Implications for KaiC regulation Ioannis Vakonakis and Andy C. LiWang Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10925–10930. Published online 2004 July 15. doi: 10.1073/pnas.0403037101.PMCID: PMC503721 Effects of dietary omega-3 polyunsaturated fatty acids on brain gene expression Klára Kitajka, Andrew J. Sinclair, Richard S. Weisinger, Harrison S. Weisinger, Michael Mathai, Anura P. Jayasooriya, John E. Halver, and László G. Puskás Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10931–10936. Published online 2004 July 19. doi: 10.1073/pnas.0402342101.PMCID: PMC503722 A large conformational change of the translocation ATPase SecA Andrew R. Osborne, William M. Clemons, Jr., and Tom A. Rapoport Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10937–10942. Published online 2004 July 15. doi: 10.1073/pnas.0401742101.PMCID: PMC491988 Attenuation control of pyrG expression in Bacillus subtilis is mediated by CTP-sensitive reiterative transcription Qi Meng, Charles L. Turnbough, Jr., and Robert L. Switzer Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10943–10948. Published online 2004 July 13. doi: 10.1073/pnas.0403755101.PMCID: PMC503723 Biophysics Heteronuclear NMR investigations of dynamic regions of intact Escherichia coli ribosomes John Christodoulou, Göran Larsson, Paola Fucini, Sean R. Connell, Thelma A. Pertinhez, Charlotte L. Hanson, Christina Redfield, Knud H. Nierhaus, Carol V. Robinson, Jürgen Schleucher, and Christopher M. Dobson Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10949–10954. Published online 2004 July 19. doi: 10.1073/pnas.0400928101.PMCID: PMC503724 Modeling a synthetic multicellular clock: Repressilators coupled by quorum sensing Jordi Garcia-Ojalvo, Michael B. Elowitz, and Steven H. Strogatz Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10955–10960. Published online 2004 July 15. doi: 10.1073/pnas.0307095101.PMCID: PMC503725 A force-dependent switch reverses type IV pilus retraction Berenike Maier, Michael Koomey, and Michael P. Sheetz Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10961–10966. Published online 2004 July 15. doi: 10.1073/pnas.0402305101.PMCID: PMC503726 Origin of the neighboring residue effect on peptide backbone conformation Franc Avbelj and Robert L. Baldwin Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10967–10972. Published online 2004 July 14. doi: 10.1073/pnas.0404050101.PMCID: PMC503727 A point mutation in the regulatory light chain reduces the step size of skeletal muscle myosin Jennifer J. Sherwood, Guillermina S. Waller, David M. Warshaw, and Susan Lowey Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10973–10978. Published online 2004 July 15. doi: 10.1073/pnas.0401699101.PMCID: PMC503728 From the Cover: The dynamics of genomic-length DNA molecules in 100-nm channels Jonas O. Tegenfeldt, Christelle Prinz, Han Cao, Steven Chou, Walter W. Reisner, Robert Riehn, Yan Mei Wang, Edward C. Cox, James C. Sturm, Pascal Silberzan, and Robert H. Austin Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10979–10983. Published online 2004 July 13. doi: 10.1073/pnas.0403849101.PMCID: PMC503729 Crystal structure of the p14/MP1 scaffolding complex: How a twin couple attaches mitogen-activated protein kinase signaling to late endosomes Robert Kurzbauer, David Teis, Mariana E. G. de Araujo, Sebastian Maurer-Stroh, Frank Eisenhaber, Gleb P. Bourenkov, Hans D. Bartunik, Mirko Hekman, Ulf R. Rapp, Lukas A. Huber, and Tim Clausen Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10984–10989. Published online 2004 July 19. doi: 10.1073/pnas.0403435101.PMCID: PMC503730 Cell Biology From the Cover: Integration of Caenorhabditis elegans MAPK pathways mediating immunity and stress resistance by MEK-1 MAPK kinase and VHP-1 MAPK phosphatase Dennis H. Kim, Nicole T. Liberati, Tomoaki Mizuno, Hideki Inoue, Naoki Hisamoto, Kunihiro Matsumoto, and Frederick M. Ausubel Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10990–10994. Published online 2004 July 15. doi: 10.1073/pnas.0403546101.PMCID: PMC503731 From the Cover: Mitogen-activated protein kinase pathways defend against bacterial pore-forming toxins Danielle L. Huffman, Laurence Abrami, Roman Sasik, Jacques Corbeil, F. Gisou van der Goot, and Raffi V. Aroian Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10995–11000. Published online 2004 July 15. doi: 10.1073/pnas.0404073101.PMCID: PMC503732 Ecology INAUGURAL ARTICLE by a Recently Elected Academy Member: Biography of David Tilman Tinsley H. Davis Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10851–10853. Published online 2004 July 19. doi: 10.1073/pnas.0404605101.PMCID: PMC503709 INAUGURAL ARTICLE by a Recently Elected Academy Member: Niche tradeoffs, neutrality, and community structure: A stochastic theory of resource competition, invasion, and community assembly David Tilman Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10854–10861. Published online 2004 July 8. doi: 10.1073/pnas.0403458101.PMCID: PMC503710 From the Cover: Global patterns of plant leaf N and P in relation to temperature and latitude Peter B. Reich and Jacek Oleksyn Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11001–11006. Published online 2004 June 22. doi: 10.1073/pnas.0403588101.PMCID: PMC503733 Evolution Genetic organization of the psbAD region in phages infecting marine Synechococcus strains Andrew Millard, Martha R. J. Clokie, David A. Shub, and Nicholas H. Mann Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11007–11012. Published online 2004 July 19. doi: 10.1073/pnas.0401478101.PMCID: PMC503734 Transfer of photosynthesis genes to and from Prochlorococcus viruses Debbie Lindell, Matthew B. Sullivan, Zackary I. Johnson, Andrew C. Tolonen, Forest Rohwer, and Sallie W. Chisholm Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11013–11018. Published online 2004 July 15. doi: 10.1073/pnas.0401526101.PMCID: PMC503735 The evolution of reproductive restraint through social communication Justin Werfel and Yaneer Bar-Yam Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11019–11024. Published online 2004 July 15. doi: 10.1073/pnas.0305059101.PMCID: PMC491990 Resistant tissues of modern marchantioid liverworts resemble enigmatic Early Paleozoic microfossils Linda E. Graham, Lee W. Wilcox, Martha E. Cook, and Patricia G. Gensel Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11025–11029. Published online 2004 July 19. doi: 10.1073/pnas.0400484101.PMCID: PMC503736 Prospects for inferring very large phylogenies by using the neighbor-joining method Koichiro Tamura, Masatoshi Nei, and Sudhir Kumar Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11030–11035. Published online 2004 July 16. doi: 10.1073/pnas.0404206101.PMCID: PMC491989 Host–parasite interactions and the evolution of ploidy Scott L. Nuismer and Sarah P. Otto Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11036–11039. Published online 2004 July 13. doi: 10.1073/pnas.0403151101.PMCID: PMC503737 Phylogeny and diversification of the largest avian radiation F. Keith Barker, Alice Cibois, Peter Schikler, Julie Feinstein, and Joel Cracraft Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11040–11045. Published online 2004 July 19. doi: 10.1073/pnas.0401892101.PMCID: PMC503738 Genetics Characterization of synthetic DNA bar codes in Saccharomyces cerevisiae gene-deletion strains Robert G. Eason, Nader Pourmand, Waraporn Tongprasit, Zelek S. Herman, Kevin Anthony, Olufisayo Jejelowo, Ronald W. Davis, and Viktor Stolc Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11046–11051. Published online 2004 July 16. doi: 10.1073/pnas.0403672101.PMCID: PMC491991 GTF2IRD2 is located in the Williams–Beuren syndrome critical region 7q11.23 and encodes a protein with two TFII-I-like helix–loop–helix repeats Aleksandr V. Makeyev, Lkhamsuren Erdenechimeg, Ognoon Mungunsukh, Jutta J. Roth, Badam Enkhmandakh, Frank H. Ruddle, and Dashzeveg Bayarsaihan Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11052–11057. Published online 2004 July 8. doi: 10.1073/pnas.0404150101.PMCID: PMC503739 Immunology VLA-4 integrin concentrates at the peripheral supramolecular activation complex of the immune synapse and drives T helper 1 responses María Mittelbrunn, Ana Molina, María M. Escribese, María Yáñez-Mó, Ester Escudero, Ángeles Ursa, Reyes Tejedor, Francisco Mampaso, and Francisco Sánchez-Madrid Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11058–11063. Published online 2004 July 19. doi: 10.1073/pnas.0307927101.PMCID: PMC503740 Recapitulation of B cell differentiation in the central nervous system of patients with multiple sclerosis Anna Corcione, Simona Casazza, Elisa Ferretti, Debora Giunti, Emanuela Zappia, Angela Pistorio, Claudio Gambini, Giovanni Luigi Mancardi, Antonio Uccelli, and Vito Pistoia Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11064–11069. Published online 2004 July 19. doi: 10.1073/pnas.0402455101.PMCID: PMC503741 Pre-B cell receptor expression is necessary for thymic stromal lymphopoietin responsiveness in the bone marrow but not in the liver environment Christian A. J. Vosshenrich, Ana Cumano, Werner Müller, James P. Di Santo, and Paulo Vieira Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11070–11075. Published online 2004 July 19. doi: 10.1073/pnas.0402919101.PMCID: PMC503742 Exocytosis of IgG as mediated by the receptor, FcRn: An analysis at the single-molecule level Raimund J. Ober, Cruz Martinez, Xuming Lai, Jinchun Zhou, and E. Sally Ward Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11076–11081. Published online 2004 July 16. doi: 10.1073/pnas.0402970101.PMCID: PMC503743 IL-2 and IL-15 receptor α-subunits are coexpressed in a supramolecular receptor cluster in lipid rafts of T cells György Vámosi, Andrea Bodnár, György Vereb, Attila Jenei, Carolyn K. Goldman, Jörg Langowski, Katalin Tóth, László Mátyus, János Szöllösi, Thomas A. Waldmann, and Sándor Damjanovich Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11082–11087. Published online 2004 July 19. doi: 10.1073/pnas.0403916101.PMCID: PMC503744 Recombinant poxvirus boosting of DNA-primed rhesus monkeys augments peak but not memory T lymphocyte responses Sampa Santra, Dan H. Barouch, Birgit Korioth-Schmitz, Carol I. Lord, Georgia R. Krivulka, Faye Yu, Margaret H. Beddall, Darci A. Gorgone, Michelle A. Lifton, Ayako Miura, Valerie Philippon, Kelledy Manson, Phillip D. Markham, John Parrish, Marcelo J. Kuroda, Jörn E. Schmitz, Rebecca S. Gelman, John W. Shiver, David C. Montefiori, Dennis Panicali, and Norman L. Letvin Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11088–11093. Published online 2004 July 16. doi: 10.1073/pnas.0401954101.PMCID: PMC503745 Medical Sciences Innervation of ectopic endometrium in a rat model of endometriosis Karen J. Berkley, Natalia Dmitrieva, Kathleen S. Curtis, and Raymond E. Papka Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11094–11098. Published online 2004 July 15. doi: 10.1073/pnas.0403663101.PMCID: PMC491992 Reovirus oncolysis: The Ras/RalGEF/p38 pathway dictates host cell permissiveness to reovirus infection Kara L. Norman, Kensuke Hirasawa, An-Dao Yang, Michael A. Shields, and Patrick W. K. Lee Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11099–11104. Published online 2004 July 19. doi: 10.1073/pnas.0404310101.PMCID: PMC503746 Microbiology Genome sequence of the enterobacterial phytopathogen Erwinia carotovora subsp. atroseptica and characterization of virulence factors K. S. Bell, M. Sebaihia, L. Pritchard, M. T. G. Holden, L. J. Hyman, M. C. Holeva, N. R. Thomson, S. D. Bentley, L. J. C. Churcher, K. Mungall, R. Atkin, N. Bason, K. Brooks, T. Chillingworth, K. Clark, J. Doggett, A. Fraser, Z. Hance, H. Hauser, K. Jagels, S. Moule, H. Norbertczak, D. Ormond, C. Price, M. A. Quail, M. Sanders, D. Walker, S. Whitehead, G. P. C. Salmond, P. R. J. Birch, J. Parkhill, and I. K. Toth Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11105–11110. Published online 2004 July 19. doi: 10.1073/pnas.0402424101.PMCID: PMC503747 Membrane lipid patterns typify distinct anaerobic methanotrophic consortia Martin Blumenberg, Richard Seifert, Joachim Reitner, Thomas Pape, and Walter Michaelis Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11111–11116. Published online 2004 July 16. doi: 10.1073/pnas.0401188101.PMCID: PMC503748 Late viral interference induced by transdominant Gag of an endogenous retrovirus Manuela Mura, Pablo Murcia, Marco Caporale, Thomas E. Spencer, Kunio Nagashima, Alan Rein, and Massimo Palmarini Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11117–11122. Published online 2004 July 19. doi: 10.1073/pnas.0402877101.PMCID: PMC503749 Discovery and characterization of sialic acid O-acetylation in group B Streptococcus Amanda L. Lewis, Victor Nizet, and Ajit Varki Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11123–11128. Published online 2004 July 19. doi: 10.1073/pnas.0403010101.PMCID: PMC503750 Variable var transition rates underlie antigenic variation in malaria Paul Horrocks, Robert Pinches, Zóe Christodoulou, Sue A. Kyes, and Chris I. Newbold Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11129–11134. Published online 2004 July 15. doi: 10.1073/pnas.0402347101.PMCID: PMC503751 Genomic DNA double-strand breaks are targets for hepadnaviral DNA integration Colin A. Bill and Jesse Summers Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11135–11140. Published online 2004 July 16. doi: 10.1073/pnas.0403925101.PMCID: PMC503752 Neuroscience Therapeutic effects of PKC activators in Alzheimer's disease transgenic mice René Etcheberrigaray, Mathew Tan, Ilse Dewachter, Cuno Kuipéri, Ingrid Van der Auwera, Stefaan Wera, Lixin Qiao, Barry Bank, Thomas J. Nelson, Alan P. Kozikowski, Fred Van Leuven, and Daniel L. Alkon Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11141–11146. Published online 2004 July 19. doi: 10.1073/pnas.0403921101.PMCID: PMC503753 Noninactivating voltage-gated sodium channels in severe myoclonic epilepsy of infancy Thomas H. Rhodes, Christoph Lossin, Carlos G. Vanoye, Dao W. Wang, and Alfred L. George, Jr. Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11147–11152. Published online 2004 July 19. doi: 10.1073/pnas.0402482101.PMCID: PMC503754 A role for heme in Alzheimer's disease: Heme binds amyloid β and has altered metabolism Hani Atamna and William H. Frey, II Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11153–11158. Published online 2004 July 19. doi: 10.1073/pnas.0404349101.PMCID: PMC503755 Evidence for defective energy homeostasis in amyotrophic lateral sclerosis: Benefit of a high-energy diet in a transgenic mouse model Luc Dupuis, Hugues Oudart, Frédérique René, Jose-Luis Gonzalez de Aguilar, and Jean-Philippe Loeffler Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11159–11164. Published online 2004 July 19. doi: 10.1073/pnas.0402026101.PMCID: PMC503756 Pharmacology Acetaminophen-induced hypothermia in mice is mediated by a prostaglandin endoperoxide synthase 1 gene-derived protein Samir S. Ayoub, Regina M. Botting, Sarita Goorha, Paul R. Colville-Nash, Derek A. Willoughby, and Leslie R. Ballou Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11165–11169. Published online 2004 July 19. doi: 10.1073/pnas.0404185101.PMCID: PMC503757 Human eosinophil chemotaxis and selective in vivo recruitment by sphingosine 1-phosphate Fiorentina Roviezzo, Francesco Del Galdo, Gianfranco Abbate, Mariarosaria Bucci, Bruno D'Agostino, Edson Antunes, Gianfranco De Dominicis, Luca Parente, Francesco Rossi, Giuseppe Cirino, and Raffaele De Palma Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11170–11175. Published online 2004 July 14. doi: 10.1073/pnas.0401439101.PMCID: PMC503758 Social Sciences Psychology Transparallel processing by hyperstrings Peter A. van der Helm Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 10862–10867. Published online 2004 July 19. doi: 10.1073/pnas.0403402101.PMCID: PMC503711 Correction Proc Natl Acad Sci U S A. 2004 July 27; 101(30): 11176. doi: 10.1073/pnas.0404463101.PMCID: PMC503759 Corrects: Peter Klein, et al. A structure-based model for ligand binding and dimerization of EGF receptors. Proc Natl Acad Sci U S A. 2004 January 27; 101(4): 929–934. |