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COMMENTARIES

Jinoh Kim and Randy Schekman

The ins and outs of presenilin 1 membrane topology
PNAS 2004 101: 905-906; published online before print January 19 2004, 10.1073/pnas.0307297101 [Extract] [Full Text] [PDF]  
See companion article on page 1057

Richard W. Ordway

Quantal size fits central synaptic depression
PNAS 2004 101: 907-908; published online before print January 19 2004, 10.1073/pnas.0307309101 [Extract] [Full Text] [PDF]  
See companion article on page 1063

PHYSICAL SCIENCES

Computer Sciences

David Peak, Jevin D. West, Susanna M. Messinger, and Keith A. Mott

Evidence for complex, collective dynamics and emergent, distributed computation in plants
PNAS 2004 101: 918-922; published online before print January 19 2004, 10.1073/pnas.0307811100 [Abstract] [Full Text] [PDF]  

SOCIAL SCIENCES

Psychology

Tali Kimchi, Ariane S. Etienne, and Joseph Terkel

A subterranean mammal uses the magnetic compass for path integration
PNAS 2004 101: 1105-1109; published online before print January 19 2004, 10.1073/pnas.0307560100 [Abstract] [Full Text] [PDF] [Supporting Figure]  

BIOLOGICAL SCIENCES

Biochemistry

Dawn Mattoon, Peter Klein, Mark A. Lemmon, Irit Lax, and Joseph Schlessinger

The tethered configuration of the EGF receptor extracellular domain exerts only a limited control of receptor function
PNAS 2004 101: 923-928; published online before print January 19 2004, 10.1073/pnas.0307286101 [Abstract] [Full Text] [PDF]  

Peter Klein, Dawn Mattoon, Mark A. Lemmon, and Joseph Schlessinger

A structure-based model for ligand binding and dimerization of EGF receptors
PNAS 2004 101: 929-934; published online before print January 19 2004, 10.1073/pnas.0307285101 [Abstract] [Full Text] [PDF] [Supporting Text]  

Shaun K. Olsen, Omar A. Ibrahimi, Angela Raucci, Fuming Zhang, Anna V. Eliseenkova, Avner Yayon, Claudio Basilico, Robert J. Linhardt, Joseph Schlessinger, and Moosa Mohammadi

Insights into the molecular basis for fibroblast growth factor receptor autoinhibition and ligand-binding promiscuity
PNAS 2004 101: 935-940; published online before print January 19 2004, 10.1073/pnas.0307287101 [Abstract] [Full Text] [PDF]  

Ana Karin Kusnetzow, Abhiram Dukkipati, Kunnel R. Babu, Lavoisier Ramos, Barry E. Knox, and Robert R. Birge

Vertebrate ultraviolet visual pigments: Protonation of the retinylidene Schiff base and a counterion switch during photoactivation
PNAS 2004 101: 941-946; published online before print January 19 2004, 10.1073/pnas.0305206101 [Abstract] [Full Text] [PDF] [Supporting Information]  

Marina Cotsiki, Rowena L. Lock, Yuan Cheng, Grace L. Williams, Jean Zhao, David Perera, Raimundo Freire, Alan Entwistle, Erica A. Golemis, Thomas M. Roberts, Parmjit S. Jat, and Ole V. Gjoerup

Simian virus 40 large T antigen targets the spindle assembly checkpoint protein Bub1
PNAS 2004 101: 947-952; published online before print January 19 2004, 10.1073/pnas.0308006100 [Abstract] [Full Text] [PDF] [Supporting Text]  

Shigeru Ariki, Kumiko Koori, Tsukasa Osaki, Kiyohito Motoyama, Kei-ichiro Inamori, and Shun-ichiro Kawabata From the Cover: A serine protease zymogen functions as a pattern-recognition receptor for lipopolysaccharides PNAS 2004 101: 953-958; published online before print January 13 2004, 10.1073/pnas.0306904101 [Abstract] [Full Text] [PDF]

Biophysics

Sarah Yohannan, Salem Faham, Duan Yang, Julian P. Whitelegge, and James U. Bowie

The evolution of transmembrane helix kinks and the structural diversity of G protein-coupled receptors
PNAS 2004 101: 959-963; published online before print January 19 2004, 10.1073/pnas.0306077101 [Abstract] [Full Text] [PDF] [Supporting Figure]  

Cell Biology

Kristin Walther, M. Kasim Diril, Nadja Jung, and Volker Haucke

Functional dissection of the interactions of stonin 2 with the adaptor complex AP-2 and synaptotagmin
PNAS 2004 101: 964-969; published online before print January 15 2004, 10.1073/pnas.0307862100 [Abstract] [Full Text] [PDF] [Supporting Information]  

Michael E. Ward, Jane Y. Wu, and Yi Rao From the Cover: Visualization of spatially and temporally regulated N-WASP activity during cytoskeletal reorganization in living cells PNAS 2004 101: 970-974; published online before print January 19 2004, 10.1073/pnas.0306258101 [Abstract] [Full Text] [PDF] [Supporting Movies]

Evolution

Christopher A. Edmonds, Anita S. Lillie, and L. Luca Cavalli-Sforza

Mutations arising in the wave front of an expanding population
PNAS 2004 101: 975-979; published online before print January 19 2004, 10.1073/pnas.0308064100 [Abstract] [Full Text] [PDF]  

Genetics

Saumen Pal, Alan B. Cantor, Kirby D. Johnson, Tyler B. Moran, Meghan E. Boyer, Stuart H. Orkin, and Emery H. Bresnick

Coregulator-dependent facilitation of chromatin occupancy by GATA-1
PNAS 2004 101: 980-985; published online before print January 8 2004, 10.1073/pnas.0307612100 [Abstract] [Full Text] [PDF] [Supporting Information]  

Ann G. Matthysse, Karine Deschet, Melanie Williams, Mazz Marry, Alan R. White, and William C. Smith

A functional cellulose synthase from ascidian epidermis
PNAS 2004 101: 986-991; published online before print January 13 2004, 10.1073/pnas.0303623101 [Abstract] [Full Text] [PDF]  

Gregory E. Crawford, Ingeborg E. Holt, James C. Mullikin, Denise Tai, National Institutes of Health Intramural Sequencing Center, Robert Blakesley, Gerard Bouffard, Alice Young, Catherine Masiello, Eric D. Green, Tyra G. Wolfsberg, and Francis S. Collins From the Cover: Identifying gene regulatory elements by genome-wide recovery of DNase hypersensitive sites PNAS 2004 101: 992-997; published online before print January 19 2004, 10.1073/pnas.0307540100 [Abstract] [Full Text] [PDF]

Immunology

Mark J. Miller, Arsalan S. Hejazi, Sindy H. Wei, Michael D. Cahalan, and Ian Parker

T cell repertoire scanning is promoted by dynamic dendritic cell behavior and random T cell motility in the lymph node
PNAS 2004 101: 998-1003; published online before print January 13 2004, 10.1073/pnas.0306407101 [Abstract] [Full Text] [PDF] [Supporting Information]  

Brian C. Schaefer, John W. Kappler, Abraham Kupfer, and Philippa Marrack

Complex and dynamic redistribution of NF-B signaling intermediates in response to T cell receptor stimulation
PNAS 2004 101: 1004-1009; published online before print January 14 2004, 10.1073/pnas.0307858100 [Abstract] [Full Text] [PDF] [Supporting Information]  

Kazuhiko Kuwahara, Satoru Fujimura, Yoshimasa Takahashi, Naomi Nakagata, Toshitada Takemori, Shinichi Aizawa, and Nobuo Sakaguchi

Germinal center-associated nuclear protein contributes to affinity maturation of B cell antigen receptor in T cell-dependent responses
PNAS 2004 101: 1010-1015; published online before print January 8 2004, 10.1073/pnas.0307609100 [Abstract] [Full Text] [PDF] [Supporting Information]  

Noriko Toyama-Sorimachi, Yusuke Tsujimura, Mikako Maruya, Atsuko Onoda, Toshiyuki Kubota, Shigeo Koyasu, Kayo Inaba, and Hajime Karasuyama

Ly49Q, a member of the Ly49 family that is selectively expressed on myeloid lineage cells and involved in regulation of cytoskeletal architecture
PNAS 2004 101: 1016-1021; published online before print January 19 2004, 10.1073/pnas.0305400101 [Abstract] [Full Text] [PDF]  

Jang-June Park, Suk-Jo Kang, A. Dharshan De Silva, Aleksandar K. Stanic, Giulia Casorati, David L. Hachey, Peter Cresswell, and Sebastian Joyce

Lipid–protein interactions: Biosynthetic assembly of CD1 with lipids in the endoplasmic reticulum is evolutionarily conserved
PNAS 2004 101: 1022-1026; published online before print January 13 2004, 10.1073/pnas.0307847100 [Abstract] [Full Text] [PDF] [Supporting Figures]  

Leo D. Wang, Jared Lopes, A. Byron Cooper, May Dang-Lawson, Linda Matsuuchi, and Marcus R. Clark

Selection of B lymphocytes in the periphery is determined by the functional capacity of the B cell antigen receptor
PNAS 2004 101: 1027-1032; published online before print January 13 2004, 10.1073/pnas.0307040101 [Abstract] [Full Text] [PDF]  

Medical Sciences

Chih-Wen Peng, Yong Xue, Bo Zhao, Eric Johannsen, Elliott Kieff, and Shizuko Harada

Direct interactions between Epstein–Barr virus leader protein LP and the EBNA2 acidic domain underlie coordinate transcriptional regulation
PNAS 2004 101: 1033-1038; published online before print January 19 2004, 10.1073/pnas.0307808100 [Abstract] [Full Text] [PDF]  

Carsten Schwaenen, Michelle Nessling, Swen Wessendorf, Tatjana Salvi, Gunnar Wrobel, Bernhard Radlwimmer, Hans A. Kestler, Christian Haslinger, Stephan Stilgenbauer, Hartmut Döhner, Martin Bentz, and Peter Lichter

Automated array-based genomic profiling in chronic lymphocytic leukemia: Development of a clinical tool and discovery of recurrent genomic alterations
PNAS 2004 101: 1039-1044; published online before print January 16 2004, 10.1073/pnas.0304717101 [Abstract] [Full Text] [PDF] [Supporting Tables]  

Yumei Xiong, Norimasa Miyamoto, Kenji Shibata, Mark A. Valasek, Toshiyuki Motoike, Rafal M. Kedzierski, and Masashi Yanagisawa

Short-chain fatty acids stimulate leptin production in adipocytes through the G protein-coupled receptor GPR41
PNAS 2004 101: 1045-1050; published online before print January 13 2004, 10.1073/pnas.2637002100 [Abstract] [Full Text] [PDF] [Supporting Table]  

Neuroscience

Xiao Yu, Kai-Lai Duan, Chun-Feng Shang, Han-Gang Yu, and Zhuan Zhou

Calcium influx through hyperpolarization-activated cation channels (I_h channels) contributes to activity-evoked neuronal secretion
PNAS 2004 101: 1051-1056; published online before print January 14 2004, 10.1073/pnas.0305167101 [Abstract] [Full Text] [PDF] [Supporting Figure]  

Nazneen N. Dewji, Dante Valdez, and S. J. Singer From the Cover: The presenilins turned inside out: Implications for their structures and functions PNAS 2004 101: 1057-1062; published online before print January 19 2004, 10.1073/pnas.0307290101 [Abstract] [Full Text] [PDF]   See Commentary on page 905

Gong Chen, Nobutoshi C. Harata, and Richard W. Tsien From the Cover: Paired-pulse depression of unitary quantal amplitude at single hippocampal synapses PNAS 2004 101: 1063-1068; published online before print January 13 2004, 10.1073/pnas.0307149101 [Abstract] [Full Text] [PDF]   See Commentary on page 907

Joseph W. Lewcock and Randall R. Reed

A feedback mechanism regulates monoallelic odorant receptor expression
PNAS 2004 101: 1069-1074; published online before print January 19 2004, 10.1073/pnas.0307986100 [Abstract] [Full Text] [PDF]  

Celina V. Zerbinatti, David F. Wozniak, John Cirrito, Judy A. Cam, Hiroshi Osaka, Kelly R. Bales, Min Zhuo, Steven M. Paul, David M. Holtzman, and Guojun Bu

Increased soluble amyloid- peptide and memory deficits in amyloid model mice overexpressing the low-density lipoprotein receptor-related protein
PNAS 2004 101: 1075-1080; published online before print January 19 2004, 10.1073/pnas.0305803101 [Abstract] [Full Text] [PDF] [Supporting Figure]  

Christopher Cherniak, Zekeria Mokhtarzada, Raul Rodriguez-Esteban, and Kelly Changizi

Global optimization of cerebral cortex layout
PNAS 2004 101: 1081-1086; published online before print January 13 2004, 10.1073/pnas.0305212101 [Abstract] [Full Text] [PDF] [Supporting Information]  

Pharmacology

Jinzhe Mao, Xueren Wang, Fuxue Chen, Runping Wang, Asheebo Rojas, Yun Shi, Hailan Piao, and Chun Jiang

Molecular basis for the inhibition of G protein-coupled inward rectifier K⁺ channels by protein kinase C
PNAS 2004 101: 1087-1092; published online before print January 19 2004, 10.1073/pnas.0304827101 [Abstract] [Full Text] [PDF] [Supporting Information]  

Plant Biology

Thanat Chookajorn, Aardra Kachroo, Daniel R. Ripoll, Andrew G. Clark, and June B. Nasrallah Inaugural Article by a Recently Elected Academy Member: Inaugural Article: Specificity determinants and diversification of the Brassica self-incompatibility pollen ligand PNAS 2004 101: 911-917; published online before print December 23 2003, 10.1073/pnas.2637116100 [Abstract] [Full Text] [PDF]

David Peak, Jevin D. West, Susanna M. Messinger, and Keith A. Mott

Evidence for complex, collective dynamics and emergent, distributed computation in plants
PNAS 2004 101: 918-922; published online before print January 19 2004, 10.1073/pnas.0307811100 [Abstract] [Full Text] [PDF]  

Meng-Hsuan Han, Saiprasad Goud, Liang Song, and Nina Fedoroff

The Arabidopsis double-stranded RNA-binding protein HYL1 plays a role in microRNA-mediated gene regulation
PNAS 2004 101: 1093-1098; published online before print January 13 2004, 10.1073/pnas.0307969100 [Abstract] [Full Text] [PDF]  

Chitose Kami, Keiko Mukougawa, Takuya Muramoto, Akiho Yokota, Tomoko Shinomura, J. Clark Lagarias, and Takayuki Kohchi

Complementation of phytochrome chromophore-deficient Arabidopsis by expression of phycocyanobilin:ferredoxin oxidoreductase
PNAS 2004 101: 1099-1104; published online before print January 13 2004, 10.1073/pnas.0307615100 [Abstract] [Full Text] [PDF]  

CORRECTIONS

Correction for Martínez-Castilla et al., Adaptive evolution in the Arabidopsis MADS-box gene family inferred from its complete resolved phylogeny, PNAS 2003 100:13407-13412 [Extract] [Full Text] [PDF]