| | This journal provides immediate access to some articles. Letters Nodule morphology and growth model Bernard P. Boudreau Proc Natl Acad Sci U S A. 2008 May 13; 105(19): E21. doi: 10.1073/pnas.0800654105.PMCID: PMC2383953 Reply to Boudreau: Morphologic expression of ferromanganese nodules Celeste A. Asikainen Proc Natl Acad Sci U S A. 2008 May 13; 105(19): E22. doi: 10.1073/pnas.0802821105.PMCID: PMC2383963 This Week in PNAS Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6789–6790. doi: 10.1073/iti1908105.PMCID: PMC2383946 Commentaries Increasing fluid intelligence is possible after all Robert J. Sternberg Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6791–6792. doi: 10.1073/pnas.0803396105.PMCID: PMC2383939 Long-distance splicing Alissa M. Anderson and Jonathan P. Staley Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6793–6794. doi: 10.1073/pnas.0803068105.PMCID: PMC2383983 A truer measure of our ignorance Luis A. Nunes Amaral Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6795–6796. doi: 10.1073/pnas.0802459105.PMCID: PMC2383987 Physical Sciences Applied Mathematics From the Cover: Estimating the size of the human interactome Michael P. H. Stumpf, Thomas Thorne, Eric de Silva, Ronald Stewart, Hyeong Jun An, Michael Lappe, and Carsten Wiuf Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6959–6964. doi: 10.1073/pnas.0708078105.PMCID: PMC2383957 Chemistry Cross-polarized excitons in carbon nanotubes Svetlana Kilina, Sergei Tretiak, Stephen K. Doorn, Zhengtang Luo, Fotios Papadimitrakopoulos, Andrei Piryatinski, Avadh Saxena, and Alan R. Bishop Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6797–6802. doi: 10.1073/pnas.0711646105.PMCID: PMC2383959 Mitochondrial copper(I) transfer from Cox17 to Sco1 is coupled to electron transfer Lucia Banci, Ivano Bertini, Simone Ciofi-Baffoni, Theodoros Hadjiloi, Manuele Martinelli, and Peep Palumaa Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6803–6808. doi: 10.1073/pnas.0800019105.PMCID: PMC2383975 Characterization of selective binding of alkali cations with carboxylate by x-ray absorption spectroscopy of liquid microjets Janel S. Uejio, Craig P. Schwartz, Andrew M. Duffin, Walter S. Drisdell, Ronald C. Cohen, and Richard J. Saykally Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6809–6812. doi: 10.1073/pnas.0800181105.PMCID: PMC2383964 Platinum-based inhibitors of amyloid-β as therapeutic agents for Alzheimer's disease Kevin J. Barnham, Vijaya B. Kenche, Giuseppe D. Ciccotosto, David P. Smith, Deborah J. Tew, Xiang Liu, Keyla Perez, Greg A. Cranston, Timothy J. Johanssen, Irene Volitakis, Ashley I. Bush, Colin L. Masters, Anthony R. White, Jeffrey P. Smith, Robert A. Cherny, and Roberto Cappai Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6813–6818. doi: 10.1073/pnas.0800712105.PMCID: PMC2383936 Geology A Miocene to Pleistocene climate and elevation record of the Sierra Nevada (California) A. Mulch, A. M. Sarna-Wojcicki, M. E. Perkins, and C. P. Chamberlain Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6819–6824. doi: 10.1073/pnas.0708811105.PMCID: PMC2383980 Physics Electronic duality in strongly correlated matter T. Park, M. J. Graf, L. Boulaevskii, J. L. Sarrao, and J. D. Thompson Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6825–6828. doi: 10.1073/pnas.0801873105.PMCID: PMC2383976 Terahertz radiation from bacteriorhodopsin reveals correlated primary electron and proton transfer processes G. I. Groma, J. Hebling, I. Z. Kozma, G. Váró, J. Hauer, J. Kuhl, and E. Riedle Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6888–6893. doi: 10.1073/pnas.0706336105.PMCID: PMC2383969 Biological Sciences Anthropology Unlocking evidence of early diet from tooth enamel Louise T. Humphrey, M. Christopher Dean, Teresa E. Jeffries, and Malcolm Penn Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6834–6839. doi: 10.1073/pnas.0711513105.PMCID: PMC2383951 Applied Biological Sciences Endochondral bone tissue engineering using embryonic stem cells Jojanneke M. Jukes, Sanne K. Both, Anouk Leusink, Lotus M. Th. Sterk, Clemens A. van Blitterswijk, and Jan de Boer Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6840–6845. doi: 10.1073/pnas.0711662105.PMCID: PMC2374550 Biochemistry Evidence for the aldo-keto reductase pathway of polycyclic aromatic trans-dihydrodiol activation in human lung A549 cells Jong-Heum Park, Dipti Mangal, Kirk A. Tacka, Amy M. Quinn, Ronald G. Harvey, Ian A. Blair, and Trevor M. Penning Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6846–6851. doi: 10.1073/pnas.0802776105.PMCID: PMC2383938 Regression supports two mechanisms of fork processing in phage T4 David T. Long and Kenneth N. Kreuzer Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6852–6857. doi: 10.1073/pnas.0711999105.PMCID: PMC2383968 In vitro reconstitution and crystal structure of p-aminobenzoate N-oxygenase (AurF) involved in aureothin biosynthesis Yoo Seong Choi, Houjin Zhang, Joseph S. Brunzelle, Satish K. Nair, and Huimin Zhao Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6858–6863. doi: 10.1073/pnas.0712073105.PMCID: PMC2383931 From the Cover: Cis- and trans-splicing of mRNAs mediated by tRNA sequences in eukaryotic cells Gianfranco Di Segni, Serena Gastaldi, and Glauco P. Tocchini-Valentini Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6864–6869. doi: 10.1073/pnas.0800420105.PMCID: PMC2383978 Human biliverdin reductase is an ERK activator; hBVR is an ERK nuclear transporter and is required for MAPK signaling Nicole Lerner-Marmarosh, Tihomir Miralem, Peter E. M. Gibbs, and Mahin D. Maines Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6870–6875. doi: 10.1073/pnas.0800750105.PMCID: PMC2383961 Structure of a TrmA–RNA complex: A consensus RNA fold contributes to substrate selectivity and catalysis in m5U methyltransferases Akram Alian, Tom T. Lee, Sarah L. Griner, Robert M. Stroud, and Janet Finer-Moore Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6876–6881. doi: 10.1073/pnas.0802247105.PMCID: PMC2383949 Structural insight into signal conversion and inactivation by NTPDase2 in purinergic signaling Matthias Zebisch and Norbert Sträter Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6882–6887. doi: 10.1073/pnas.0802535105.PMCID: PMC2383973 Biophysics Terahertz radiation from bacteriorhodopsin reveals correlated primary electron and proton transfer processes G. I. Groma, J. Hebling, I. Z. Kozma, G. Váró, J. Hauer, J. Kuhl, and E. Riedle Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6888–6893. doi: 10.1073/pnas.0706336105.PMCID: PMC2383969 Dynamics of phosphodiester synthesis by DNA ligase Aurélien Crut, Pravin A. Nair, Daniel A. Koster, Stewart Shuman, and Nynke H. Dekker Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6894–6899. doi: 10.1073/pnas.0800113105.PMCID: PMC2383972 Molecular mechanism of pH sensing in KcsA potassium channels Ameer N. Thompson, David J. Posson, Pirooz V. Parsa, and Crina M. Nimigean Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6900–6905. doi: 10.1073/pnas.0800873105.PMCID: PMC2383984 Force-induced growth of adhesion domains is controlled by receptor mobility Ana-Sunčana Smith, Kheya Sengupta, Stefanie Goennenwein, Udo Seifert, and Erich Sackmann Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6906–6911. doi: 10.1073/pnas.0801706105.PMCID: PMC2383988 Cell Biology Glucose sensing by MondoA:Mlx complexes: A role for hexokinases and direct regulation of thioredoxin-interacting protein expression Carrie A. Stoltzman, Christopher W. Peterson, Kevin T. Breen, Deborah M. Muoio, Andrew N. Billin, and Donald E. Ayer Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6912–6917. doi: 10.1073/pnas.0712199105.PMCID: PMC2383952 Different assemblies of the DAM1 complex follow shortening microtubules by distinct mechanisms E. L. Grishchuk, I. S. Spiridonov, V. A. Volkov, A. Efremov, S. Westermann, D. Drubin, G. Barnes, F. I. Ataullakhanov, and J. R. McIntosh Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6918–6923. doi: 10.1073/pnas.0801811105.PMCID: PMC2383981 Dachshund inhibits oncogene-induced breast cancer cellular migration and invasion through suppression of interleukin-8 Kongming Wu, Sanjay Katiyar, Anping Li, Manran Liu, Xiaoming Ju, Vladimir M. Popov, Xuanmao Jiao, Michael P. Lisanti, Antonella Casola, and Richard G. Pestell Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6924–6929. doi: 10.1073/pnas.0802085105.PMCID: PMC2374551 Influence of genotype and nutrition on survival and metabolism of starving yeast Viktor M. Boer, Sasan Amini, and David Botstein Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6930–6935. doi: 10.1073/pnas.0802601105.PMCID: PMC2383937 Developmental Biology Inhibition of Wnt signaling by the osteoblast-specific transcription factor Osterix Chi Zhang, Kyucheol Cho, Yehong Huang, Jon P. Lyons, Xin Zhou, Krishna Sinha, Pierre D. McCrea, and Benoit de Crombrugghe Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6936–6941. doi: 10.1073/pnas.0710831105.PMCID: PMC2383965 Gene regulation logic in retinal ganglion cell development: Isl1 defines a critical branch distinct from but overlapping with Pou4f2 Xiuqian Mu, Xueyao Fu, Phillip D. Beremand, Terry L. Thomas, and William H. Klein Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6942–6947. doi: 10.1073/pnas.0802627105.PMCID: PMC2383966 Ecology From the Cover: Quorum decision-making facilitates information transfer in fish shoals Ashley J. W. Ward, David J. T. Sumpter, Iain D. Couzin, Paul J. B. Hart, and Jens Krause Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6948–6953. doi: 10.1073/pnas.0710344105.PMCID: PMC2383955 Environmental Sciences Iodide accumulation provides kelp with an inorganic antioxidant impacting atmospheric chemistry Frithjof C. Küpper, Lucy J. Carpenter, Gordon B. McFiggans, Carl J. Palmer, Tim J. Waite, Eva-Maria Boneberg, Sonja Woitsch, Markus Weiller, Rafael Abela, Daniel Grolimund, Philippe Potin, Alison Butler, George W. Luther, III, Peter M. H. Kroneck, Wolfram Meyer-Klaucke, and Martin C. Feiters Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6954–6958. doi: 10.1073/pnas.0709959105.PMCID: PMC2383960 Evolution From the Cover: Estimating the size of the human interactome Michael P. H. Stumpf, Thomas Thorne, Eric de Silva, Ronald Stewart, Hyeong Jun An, Michael Lappe, and Carsten Wiuf Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6959–6964. doi: 10.1073/pnas.0708078105.PMCID: PMC2383957 Direct phylogenetic evidence for lateral transfer of elongation factor-like gene Ryoma Kamikawa, Yuji Inagaki, and Yoshihiko Sako Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6965–6969. doi: 10.1073/pnas.0711084105.PMCID: PMC2383962 Arbovirus evolution in vivo is constrained by host alternation Lark L. Coffey, Nikos Vasilakis, Aaron C. Brault, Ann M. Powers, Frédéric Tripet, and Scott C. Weaver Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6970–6975. doi: 10.1073/pnas.0712130105.PMCID: PMC2383930 The evolution of modularity in bacterial metabolic networks Anat Kreimer, Elhanan Borenstein, Uri Gophna, and Eytan Ruppin Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6976–6981. doi: 10.1073/pnas.0712149105.PMCID: PMC2383979 Selfishness as second-order altruism Omar Tonsi Eldakar and David Sloan Wilson Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6982–6986. doi: 10.1073/pnas.0712173105.PMCID: PMC2383986 Null mutations in human and mouse orthologs frequently result in different phenotypes Ben-Yang Liao and Jianzhi Zhang Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6987–6992. doi: 10.1073/pnas.0800387105.PMCID: PMC2383943 Centrosomal RNA correlates with intron-poor nuclear genes in Spisula oocytes Mark C. Alliegro and Mary Anne Alliegro Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6993–6997. doi: 10.1073/pnas.0802293105.PMCID: PMC2383940 Genetics Promoter polymorphism of the erythropoietin gene in severe diabetic eye and kidney complications Zongzhong Tong, Zhenglin Yang, Shrena Patel, Haoyu Chen, Daniel Gibbs, Xian Yang, Vincent S. Hau, Yuuki Kaminoh, Jennifer Harmon, Erik Pearson, Jeanette Buehler, Yuhong Chen, Baifeng Yu, Nicholas H. Tinkham, Norman A. Zabriskie, Jiexi Zeng, Ling Luo, Jennifer K. Sun, Manvi Prakash, Rola N. Hamam, Stephen Tonna, Ryan Constantine, Cecinio C. Ronquillo, SriniVas Sadda, Robert L. Avery, John M. Brand, Nyall London, Alfred L. Anduze, George L. King, Paul S. Bernstein, Scott Watkins, Genetics of Diabetes and Diabetic Complication Study Group, Lynn B. Jorde, Dean Y. Li, Lloyd Paul Aiello, Martin R. Pollak, and Kang Zhang Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6998–7003. doi: 10.1073/pnas.0800454105.PMCID: PMC2383970 Genomic and epigenetic alterations deregulate microRNA expression in human epithelial ovarian cancer Lin Zhang, Stefano Volinia, Tomas Bonome, George Adrian Calin, Joel Greshock, Nuo Yang, Chang-Gong Liu, Antonis Giannakakis, Pangiotis Alexiou, Kosei Hasegawa, Cameron N. Johnstone, Molly S. Megraw, Sarah Adams, Heini Lassus, Jia Huang, Sippy Kaur, Shun Liang, Praveen Sethupathy, Arto Leminen, Victor A. Simossis, Raphael Sandaltzopoulos, Yoshio Naomoto, Dionyssios Katsaros, Phyllis A. Gimotty, Angela DeMichele, Qihong Huang, Ralf Bützow, Anil K. Rustgi, Barbara L. Weber, Michael J. Birrer, Artemis G. Hatzigeorgiou, Carlo M. Croce, and George Coukos Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7004–7009. doi: 10.1073/pnas.0801615105.PMCID: PMC2383982 Immunology Dendritic cell-mediated NK cell activation is controlled by Jagged2–Notch interaction Mika Kijima, Takeshi Yamaguchi, Chieko Ishifune, Yoichi Maekawa, Akemi Koyanagi, Hideo Yagita, Shigeru Chiba, Kenji Kishihara, Mitsuo Shimada, and Koji Yasutomo Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7010–7015. doi: 10.1073/pnas.0709919105.PMCID: PMC2383942 Identification of innate immunity genes and pathways using a comparative genomics approach Scott Alper, Rebecca Laws, Brad Lackford, Windy A. Boyd, Paul Dunlap, Jonathan H. Freedman, and David A. Schwartz Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7016–7021. doi: 10.1073/pnas.0802405105.PMCID: PMC2383967 Medical Sciences Expression of an estrogen receptor agonist in differentiating osteoblast cultures Thomas L. McCarthy, Mary E. Clough, Caren M. Gundberg, and Michael Centrella Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7022–7027. doi: 10.1073/pnas.0800085105.PMCID: PMC2383941 Sildenafil and cardiomyocyte-specific cGMP signaling prevent cardiomyopathic changes associated with dystrophin deficiency M. Khairallah, R. J. Khairallah, M. E. Young, B. G. Allen, M. A. Gillis, G. Danialou, C. F. Deschepper, B. J. Petrof, and C. Des Rosiers Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7028–7033. doi: 10.1073/pnas.0710595105.PMCID: PMC2383977 Interferon signaling and treatment outcome in chronic hepatitis C Magdalena Sarasin-Filipowicz, Edward J. Oakeley, Francois H. T. Duong, Verena Christen, Luigi Terracciano, Witold Filipowicz, and Markus H. Heim Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7034–7039. doi: 10.1073/pnas.0707882105.PMCID: PMC2383932 The basal-like mammary carcinomas induced by Brca1 or Bard1 inactivation implicate the BRCA1/BARD1 heterodimer in tumor suppression Reena Shakya, Matthias Szabolcs, Ellen McCarthy, Elson Ospina, Katia Basso, Subhadra Nandula, Vundavalli Murty, Richard Baer, and Thomas Ludwig Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7040–7045. doi: 10.1073/pnas.0711032105.PMCID: PMC2365565 Tissue-engineered endothelial and epithelial implants differentially and synergistically regulate airway repair Brett G. Zani, Koji Kojima, Charles A. Vacanti, and Elazer R. Edelman Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7046–7051. doi: 10.1073/pnas.0802463105.PMCID: PMC2383974 Microbiology Diverse syntrophic partnerships from deep-sea methane vents revealed by direct cell capture and metagenomics Annelie Pernthaler, Anne E. Dekas, C. Titus Brown, Shana K. Goffredi, Tsegereda Embaye, and Victoria J. Orphan Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7052–7057. doi: 10.1073/pnas.0711303105.PMCID: PMC2383945 Host and invader impact of transfer of the clc genomic island into Pseudomonas aeruginosa PAO1 Muriel Gaillard, Nataskha Pernet, Christelle Vogne, Otto Hagenbüchle, and Jan Roelof van der Meer Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7058–7063. doi: 10.1073/pnas.0801269105.PMCID: PMC2383934 Rhizobium cellulase CelC2 is essential for primary symbiotic infection of legume host roots M. Robledo, J. I. Jiménez-Zurdo, E. Velázquez, M. E. Trujillo, J. L. Zurdo-Piñeiro, M. H. Ramírez-Bahena, B. Ramos, J. M. Díaz-Mínguez, F. Dazzo, E. Martínez-Molina, and P. F. Mateos Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7064–7069. doi: 10.1073/pnas.0802547105.PMCID: PMC2383954 Neuroscience Pink1 regulates mitochondrial dynamics through interaction with the fission/fusion machinery Yufeng Yang, Yingshi Ouyang, Lichuan Yang, M. Flint Beal, Angus McQuibban, Hannes Vogel, and Bingwei Lu Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7070–7075. doi: 10.1073/pnas.0711845105.PMCID: PMC2383971 A mutation in mouse Disc1 that models a schizophrenia risk allele leads to specific alterations in neuronal architecture and cognition Mirna Kvajo, Heather McKellar, P. Alexander Arguello, Liam J. Drew, Holly Moore, Amy B. MacDermott, Maria Karayiorgou, and Joseph A. Gogos Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7076–7081. doi: 10.1073/pnas.0802615105.PMCID: PMC2383956 Pharmacology A soluble activin type IIA receptor induces bone formation and improves skeletal integrity R. Scott Pearsall, Ernesto Canalis, Milton Cornwall-Brady, Kathryn W. Underwood, Brendan Haigis, Jeffrey Ucran, Ravindra Kumar, Eileen Pobre, Asya Grinberg, Eric D. Werner, Vaida Glatt, Lisa Stadmeyer, Deanna Smith, Jasbir Seehra, and Mary L. Bouxsein Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7082–7087. doi: 10.1073/pnas.0711263105.PMCID: PMC2383948 Physiology Human ApoD, an apolipoprotein up-regulated in neurodegenerative diseases, extends lifespan and increases stress resistance in Drosophila Julien Muffat, David W. Walker, and Seymour Benzer Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7088–7093. doi: 10.1073/pnas.0800896105.PMCID: PMC2374552 Proteasomal adaptation to environmental stress links resistance to proteotoxicity with longevity in Caenorhabditis elegans Chi Yun, Ariel Stanhill, Yun Yang, Yuhong Zhang, Cole M. Haynes, Chong-Feng Xu, Thomas A. Neubert, Adam Mor, Mark R. Philips, and David Ron Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7094–7099. doi: 10.1073/pnas.0707025105.PMCID: PMC2383958 Plant Biology From the Cover: COI1 is a critical component of a receptor for jasmonate and the bacterial virulence factor coronatine Leron Katsir, Anthony L. Schilmiller, Paul E. Staswick, Sheng Yang He, and Gregg A. Howe Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7100–7105. doi: 10.1073/pnas.0802332105.PMCID: PMC2383947 Social Sciences Psychology From the Cover: Improving fluid intelligence with training on working memory Susanne M. Jaeggi, Martin Buschkuehl, John Jonides, and Walter J. Perrig Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 6829–6833. doi: 10.1073/pnas.0801268105.PMCID: PMC2383929 Correction Correction for Li et al., Urocortin 3 regulates glucose-stimulated insulin secretion and energy homeostasis Proc Natl Acad Sci U S A. 2008 May 13; 105(19): 7106. doi: 10.1073/pnas.0803270105.PMCID: PMC2383985 Corrects: Chien Li, et al. Urocortin 3 regulates glucose-stimulated insulin secretion and energy homeostasis. Proc Natl Acad Sci U S A. 2007 March 6; 104(10): 4206–4211. |