PNAS -- Table of Contents (May 18 2004, 101 (20))

Table of Contents

May 18, 2004; 101 (20) [Index By Author] [Cover Photo]

FROM THE COVER

Generating population density-equalizing maps

Amino acid modification of tRNA anticodons (A)

Amino acid modification of tRNA anticodons (B)

Dystonia and nuclear envelope ATPases

Hyperthermophilic archaeal virus structure

Blood Rh factor as a candidate CO2 channel

COMMENTARIES

PHYSICAL SCIENCES
    Applied Mathematics
    Chemistry
    Engineering
    Mathematics

SOCIAL SCIENCES

BIOLOGICAL SCIENCES
    Agricultural Sciences
    Biochemistry
    Biophysics
    Cell Biology
    Developmental Biology
    Ecology
    Evolution
    Genetics

    Immunology
    Medical Sciences
    Microbiology
    Neuroscience
    Pharmacology
    Physiology
    Plant Biology

CORRECTIONS

Access PNAS articles and abstracts: Instruction

COMMENTARIES

Michael Ibba and Christopher Francklyn: Turning tRNA upside down: When aminoacylation is not a prerequisite to protein synthesis
PNAS 2004 101: 7493-7494; published online before print May 11 2004, 10.1073/pnas.0402276101 [Extract] [Full Text] [PDF]
See companion article on page 7530
See companion article on page 7536

Roger W. Hendrix: Hot new virus, deep connections
PNAS 2004 101: 7495-7496; published online before print May 11 2004, 10.1073/pnas.0402151101 [Extract] [Full Text] [PDF]
See companion article on page 7716

Aaron Kaplan, Judy Lieman-Hurwitz, and Dan Tchernov: Resolving the biological role of the Rhesus (Rh) proteins of red blood cells with the aid of a green alga
PNAS 2004 101: 7497-7498; published online before print May 11 2004, 10.1073/pnas.0402527101 [Extract] [Full Text] [PDF]
See companion article on page 7787

PHYSICAL SCIENCES

Applied Mathematics

Michael T. Gastner and M. E. J. Newman: From The Cover: Diffusion-based method for producing density-equalizing maps
PNAS 2004 101: 7499-7504; published online before print May 10 2004, 10.1073/pnas.0400280101 [Abstract] [Full Text] [PDF] [Supporting Text]

Chemistry

Mauricio R. Pinto and Kirk S. Schanze: Amplified fluorescence sensing of protease activity with conjugated polyelectrolytes
PNAS 2004 101: 7505-7510; published online before print May 10 2004, 10.1073/pnas.0402280101 [Abstract] [Full Text] [PDF]

Sriram Kumaraswamy, Troy Bergstedt, Xiaobo Shi, Frauke Rininsland, Stuart Kushon, Wensheng Xia, Kevin Ley, Komandoor Achyuthan, Duncan McBranch, and David Whitten: Fluorescent-conjugated polymer superquenching facilitates highly sensitive detection of proteases
PNAS 2004 101: 7511-7515; published online before print May 10 2004, 10.1073/pnas.0402367101 [Abstract] [Full Text] [PDF]

Engineering

Chuanwu Xi, Daniel L. Marks, Devang S. Parikh, Lutgarde Raskin, and Stephen A. Boppart: Structural and functional imaging of 3D microfluidic mixers using optical coherence tomography
PNAS 2004 101: 7516-7521; published online before print May 10 2004, 10.1073/pnas.0402433101 [Abstract] [Full Text] [PDF]

Mathematics

Charles Akemann and Nik Weaver: Consistency of a counterexample to Naimark's problem
PNAS 2004 101: 7522-7525; published online before print May 6 2004, 10.1073/pnas.0401489101 [Abstract] [Full Text] [PDF]

SOCIAL SCIENCES

BIOLOGICAL SCIENCES

Agricultural Sciences

Charles F. Chilcutt and Bruce E. Tabashnik: Contamination of refuges by Bacillus thuringiensis toxin genes from transgenic maize
PNAS 2004 101: 7526-7529; published online before print May 10 2004, 10.1073/pnas.0400546101 [Abstract] [Full Text] [PDF]

Biochemistry

Daniel Y. Dubois, Mickaël Blaise, Hubert D. Becker, Valérie Campanacci, Gérard Keith, Richard Giegé, Christian Cambillau, Jacques Lapointe, and Daniel Kern: From The Cover: An aminoacyl-tRNA synthetase-like protein encoded by the Escherichia coli yadB gene glutamylates specifically tRNA^Asp
PNAS 2004 101: 7530-7535; published online before print April 19 2004, 10.1073/pnas.0401634101 [Abstract] [Full Text] [PDF]
See Commentary on page 7493

Juan C. Salazar, Alexandre Ambrogelly, Pamela F. Crain, James A. McCloskey, and Dieter Söll
From The Cover: A truncated aminoacyl–tRNA synthetase modifies RNA
PNAS 2004 101: 7536-7541; published online before print April 19 2004, 10.1073/pnas.0401982101 [Abstract] [Full Text] [PDF]
See Commentary on page 7493

Masaki Kita, Yasuo Nakamura, Yuushi Okumura, Satoshi D. Ohdachi, Yuichi Oba, Michiyasu Yoshikuni, Hiroshi Kido, and Daisuke Uemura: Blarina toxin, a mammalian lethal venom from the short-tailed shrew Blarina brevicauda: Isolation and characterization
PNAS 2004 101: 7542-7547; published online before print May 10 2004, 10.1073/pnas.0402517101 [Abstract] [Full Text] [PDF]

Heiko Kuhn, Dmitry I. Cherny, Vadim V. Demidov, and Maxim D. Frank-Kamenetskii: Inducing and modulating anisotropic DNA bends by pseudocomplementary peptide nucleic acids
PNAS 2004 101: 7548-7553; published online before print May 10 2004, 10.1073/pnas.0308756101 [Abstract] [Full Text] [PDF] [Supporting Information]

Michael H. A. Roehrl, Sunghyun Kang, José Aramburu, Gerhard Wagner, Anjana Rao, and Patrick G. Hogan: Selective inhibition of calcineurin-NFAT signaling by blocking protein–protein interaction with small organic molecules
PNAS 2004 101: 7554-7559; published online before print May 6 2004, 10.1073/pnas.0401835101 [Abstract] [Full Text] [PDF] [Supporting Information]

Celestine J. Thomas, Xinlin Du, PiLong Li, Ying Wang, Elliott M. Ross, and Stephen R. Sprang: Uncoupling conformational change from GTP hydrolysis in a heterotrimeric G protein ${alpha}$ -subunit
PNAS 2004 101: 7560-7565; published online before print May 5 2004, 10.1073/pnas.0304091101 [Abstract] [Full Text] [PDF] [Supporting Information]

J. Christopher Anderson, Ning Wu, Stephen W. Santoro, Vishva Lakshman, David S. King, and Peter G. Schultz: An expanded genetic code with a functional quadruplet codon
PNAS 2004 101: 7566-7571; published online before print May 11 2004, 10.1073/pnas.0401517101 [Abstract] [Full Text] [PDF]

Subhrangsu S. Mandal, Chun Chu, Tadashi Wada, Hiroshi Handa, Aaron J. Shatkin, and Danny Reinberg: Functional interactions of RNA-capping enzyme with factors that positively and negatively regulate promoter escape by RNA polymerase II
PNAS 2004 101: 7572-7577; published online before print May 10 2004, 10.1073/pnas.0401493101 [Abstract] [Full Text] [PDF]

Chen Zhao, Sylvie L. Beaudenon, Melissa L. Kelley, M. Brett Waddell, Weiming Yuan, Brenda A. Schulman, Jon M. Huibregtse, and Robert M. Krug: The UbcH8 ubiquitin E2 enzyme is also the E2 enzyme for ISG15, an IFN- ${alpha}$ / ${beta}$ -induced ubiquitin-like protein
PNAS 2004 101: 7578-7582; published online before print May 6 2004, 10.1073/pnas.0402528101 [Abstract] [Full Text] [PDF]

Ronald S. Ullers, Joen Luirink, Nellie Harms, Françoise Schwager, Costa Georgopoulos, and Pierre Genevaux: SecB is a bona fide generalized chaperone in Escherichia coli
PNAS 2004 101: 7583-7588; published online before print May 5 2004, 10.1073/pnas.0402398101 [Abstract] [Full Text] [PDF]

Derek Jantz and Jeremy M. Berg: Reduction in DNA-binding affinity of Cys₂His₂ zinc finger proteins by linker phosphorylation
PNAS 2004 101: 7589-7593; published online before print May 5 2004, 10.1073/pnas.0402191101 [Abstract] [Full Text] [PDF]

Biophysics

Yang Zhang and Jeffrey Skolnick: Automated structure prediction of weakly homologous proteins on a genomic scale
PNAS 2004 101: 7594-7599; published online before print May 4 2004, 10.1073/pnas.0305695101 [Abstract] [Full Text] [PDF]

I. L. Ivanovska, P. J. de Pablo, B. Ibarra, G. Sgalari, F. C. MacKintosh, J. L. Carrascosa, C. F. Schmidt, and G. J. L. Wuite: Bacteriophage capsids: Tough nanoshells with complex elastic properties
PNAS 2004 101: 7600-7605; published online before print May 7 2004, 10.1073/pnas.0308198101 [Abstract] [Full Text] [PDF]

Linda Hedberg and Mikael Oliveberg: Scattered Hammond plots reveal second level of site-specific information in protein folding: ${phi}$ ' ( ${beta}$ )
PNAS 2004 101: 7606-7611; published online before print May 10 2004, 10.1073/pnas.0308497101 [Abstract] [Full Text] [PDF]

Cell Biology

Teresa V. Naismith, John E. Heuser, Xandra O. Breakefield, and Phyllis I. Hanson: From The Cover: TorsinA in the nuclear envelope
PNAS 2004 101: 7612-7617; published online before print May 10 2004, 10.1073/pnas.0308760101 [Abstract] [Full Text] [PDF]

Yuan Gao, J. Bradley Dickerson, Fukun Guo, Jie Zheng, and Yi Zheng: Rational design and characterization of a Rac GTPase-specific small molecule inhibitor
PNAS 2004 101: 7618-7623; published online before print May 5 2004, 10.1073/pnas.0307512101 [Abstract] [Full Text] [PDF] [Supporting Information]

Andrei Seluanov, David Mittelman, Olivia M. Pereira-Smith, John H. Wilson, and Vera Gorbunova: DNA end joining becomes less efficient and more error-prone during cellular senescence
PNAS 2004 101: 7624-7629; published online before print April 28 2004, 10.1073/pnas.0400726101 [Abstract] [Full Text] [PDF] [Supporting Information]

Miriam Palacios-Callender, Marisol Quintero, Veronica S. Hollis, Roger J. Springett, and Salvador Moncada: Endogenous NO regulates superoxide production at low oxygen concentrations by modifying the redox state of cytochrome c oxidase
PNAS 2004 101: 7630-7635; published online before print May 10 2004, 10.1073/pnas.0401723101 [Abstract] [Full Text] [PDF]

Developmental Biology

Nathalie Beaujean, Jane E. Taylor, Michelle McGarry, John O. Gardner, Ian Wilmut, Pasqualino Loi, Grazyna Ptak, Cesare Galli, Giovanna Lazzari, Adrian Bird, Lorraine E. Young, and Richard R. Meehan: The effect of interspecific oocytes on demethylation of sperm DNA
PNAS 2004 101: 7636-7640; published online before print May 10 2004, 10.1073/pnas.0400730101 [Abstract] [Full Text] [PDF]

Kallayanee Chawengsaksophak, Wim de Graaff, Janet Rossant, Jacqueline Deschamps, and Felix Beck: Cdx2 is essential for axial elongation in mouse development
PNAS 2004 101: 7641-7645; published online before print May 10 2004, 10.1073/pnas.0401654101 [Abstract] [Full Text] [PDF] [Supporting Figures]

Ecology

Vance T. Vredenburg: Reversing introduced species effects: Experimental removal of introduced fish leads to rapid recovery of a declining frog
PNAS 2004 101: 7646-7650; published online before print May 10 2004, 10.1073/pnas.0402321101 [Abstract] [Full Text] [PDF]

Benjamin Gilbert and Martin J. Lechowicz: Neutrality, niches, and dispersal in a temperate forest understory
PNAS 2004 101: 7651-7656; published online before print May 5 2004, 10.1073/pnas.0400814101 [Abstract] [Full Text] [PDF] [Supporting Information]

Evolution

Kate F. Darling, Michal Kucera, Carol J. Pudsey, and Christopher M. Wade: Molecular evidence links cryptic diversification in polar planktonic protists to Quaternary climate dynamics
PNAS 2004 101: 7657-7662; published online before print May 10 2004, 10.1073/pnas.0402401101 [Abstract] [Full Text] [PDF]

Genetics

Gary N. Landis, Diana Abdueva, Dmitriy Skvortsov, Junsheng Yang, Beth E. Rabin, James Carrick, Simon Tavaré, and John Tower: Similar gene expression patterns characterize aging and oxidative stress in Drosophila melanogaster
PNAS 2004 101: 7663-7668; published online before print May 10 2004, 10.1073/pnas.0307605101 [Abstract] [Full Text] [PDF] [Supporting Information]

Immunology

Angela Granelli-Piperno, Angelika Golebiowska, Christine Trumpfheller, Frederick P. Siegal, and Ralph M. Steinman: HIV-1-infected monocyte-derived dendritic cells do not undergo maturation but can elicit IL-10 production and T cell regulation
PNAS 2004 101: 7669-7674; published online before print May 5 2004, 10.1073/pnas.0402431101 [Abstract] [Full Text] [PDF] [Supporting Information]

Lars Kjer-Nielsen, Michelle A. Dunstone, Lyudmila Kostenko, Lauren K. Ely, Travis Beddoe, Nicole A. Mifsud, Anthony W. Purcell, Andrew G. Brooks, James McCluskey, and Jamie Rossjohn: Crystal structure of the human T cell receptor CD3 ${epsilon}$ ${gamma}$ heterodimer complexed to the therapeutic mAb OKT3
PNAS 2004 101: 7675-7680; published online before print May 10 2004, 10.1073/pnas.0402295101 [Abstract] [Full Text] [PDF] [Supporting Information]

Yanan Zhu, Bradley J. Swanson, Michael Wang, David A. Hildeman, Brian C. Schaefer, Xinqi Liu, Hiroyuki Suzuki, Katsuyoshi Mihara, John Kappler, and Philippa Marrack: Constitutive association of the proapoptotic protein Bim with Bcl-2-related proteins on mitochondria in T cells
PNAS 2004 101: 7681-7686; published online before print May 10 2004, 10.1073/pnas.0402293101 [Abstract] [Full Text] [PDF]

Medical Sciences

Feng Chen, M. Axel Wollmer, Frederic Hoerndli, Gerald Münch, Björn Kuhla, Evgeny I. Rogaev, Magdalini Tsolaki, Andreas Papassotiropoulos, and Jürgen Götz: Role for glyoxalase I in Alzheimer's disease
PNAS 2004 101: 7687-7692; published online before print May 5 2004, 10.1073/pnas.0402338101 [Abstract] [Full Text] [PDF]

Meera Srivastava, Ofer Eidelman, Jian Zhang, Cloud Paweletz, Hung Caohuy, QingFeng Yang, Kenneth A. Jacobson, Eliahu Heldman, Wei Huang, Catherine Jozwik, Bette S. Pollard, and Harvey B. Pollard: Digitoxin mimics gene therapy with CFTR and suppresses hypersecretion of IL-8 from cystic fibrosis lung epithelial cells
PNAS 2004 101: 7693-7698; published online before print May 10 2004, 10.1073/pnas.0402030101 [Abstract] [Full Text] [PDF]

Chinnaswamy Tiruppathi, Tabassum Naqvi, Yubin Wu, Stephen M. Vogel, Richard D. Minshall, and Asrar B. Malik: Albumin mediates the transcytosis of myeloperoxidase by means of caveolae in endothelial cells
PNAS 2004 101: 7699-7704; published online before print May 10 2004, 10.1073/pnas.0401712101 [Abstract] [Full Text] [PDF]

Mei-ying W. Yu, Birke Bartosch, Pei Zhang, Zheng-ping Guo, Paula M. Renzi, Li-ming Shen, Christelle Granier, Stephen M. Feinstone, François-Loïc Cosset, and Robert H. Purcell: Neutralizing antibodies to hepatitis C virus (HCV) in immune globulins derived from anti-HCV-positive plasma
PNAS 2004 101: 7705-7710; published online before print May 10 2004, 10.1073/pnas.0402458101 [Abstract] [Full Text] [PDF] [Supporting Figures]

Jeffrey B. Cheng, Michael A. Levine, Norman H. Bell, David J. Mangelsdorf, and David W. Russell: Genetic evidence that the human CYP2R1 enzyme is a key vitamin D 25-hydroxylase
PNAS 2004 101: 7711-7715; published online before print May 5 2004, 10.1073/pnas.0402490101 [Abstract] [Full Text] [PDF]

Microbiology

George Rice, Liang Tang, Kenneth Stedman, Francisco Roberto, Josh Spuhler, Eric Gillitzer, John E. Johnson, Trevor Douglas, and Mark Young: From The Cover: The structure of a thermophilic archaeal virus shows a double-stranded DNA viral capsid type that spans all domains of life
PNAS 2004 101: 7716-7720; published online before print May 3 2004, 10.1073/pnas.0401773101 [Abstract] [Full Text] [PDF]
See Commentary on page 7495

Shakti Narayan and John A. T. Young: Reconstitution of retroviral fusion and uncoating in a cell-free system
PNAS 2004 101: 7721-7726; published online before print May 5 2004, 10.1073/pnas.0401312101 [Abstract] [Full Text] [PDF]

Mark S. Sundrud, Victor J. Torres, Derya Unutmaz, and Timothy L. Cover: Inhibition of primary human T cell proliferation by Helicobacter pylori vacuolating toxin (VacA) is independent of VacA effects on IL-2 secretion
PNAS 2004 101: 7727-7732; published online before print May 5 2004, 10.1073/pnas.0401528101 [Abstract] [Full Text] [PDF] [Supporting Table]

Ann E. Cowan, Elizabeth M. Olivastro, Dennis E. Koppel, Charles A. Loshon, Barbara Setlow, and Peter Setlow: Lipids in the inner membrane of dormant spores of Bacillus species are largely immobile
PNAS 2004 101: 7733-7738; published online before print May 4 2004, 10.1073/pnas.0306859101 [Abstract] [Full Text] [PDF]

Neuroscience

Guy Major, Robert Baker, Emre Aksay, Brett Mensh, H. Sebastian Seung, and David W. Tank: Plasticity and tuning by visual feedback of the stability of a neural integrator
PNAS 2004 101: 7739-7744; published online before print May 10 2004, 10.1073/pnas.0401970101 [Abstract] [Full Text] [PDF] [Supporting Information]

Guy Major, Robert Baker, Emre Aksay, H. Sebastian Seung, and David W. Tank: Plasticity and tuning of the time course of analog persistent firing in a neural integrator
PNAS 2004 101: 7745-7750; published online before print May 10 2004, 10.1073/pnas.0401992101 [Abstract] [Full Text] [PDF] [Supporting Information]

Wenbin Deng, Hong Wang, Paul A. Rosenberg, Joseph J. Volpe, and Frances E. Jensen: Role of metabotropic glutamate receptors in oligodendrocyte excitotoxicity and oxidative stress
PNAS 2004 101: 7751-7756; published online before print May 10 2004, 10.1073/pnas.0307850101 [Abstract] [Full Text] [PDF]

David Cai, Louis Tao, Michael Shelley, and David W. McLaughlin: An effective kinetic representation of fluctuation-driven neuronal networks with application to simple and complex cells in visual cortex
PNAS 2004 101: 7757-7762; published online before print May 6 2004, 10.1073/pnas.0401906101 [Abstract] [Full Text] [PDF]

Valéry Matarazzo and Gabriele V. Ronnett: Temporal and regional differences in the olfactory proteome as a consequence of MeCP2 deficiency
PNAS 2004 101: 7763-7768; published online before print May 5 2004, 10.1073/pnas.0307083101 [Abstract] [Full Text] [PDF]

Frédéric Minier and Erwin Sigel: Positioning of the ${alpha}$ -subunit isoforms confers a functional signature to ${gamma}$ -aminobutyric acid type A receptors
PNAS 2004 101: 7769-7774; published online before print May 10 2004, 10.1073/pnas.0400220101 [Abstract] [Full Text] [PDF]

Pharmacology

Marie-Claude Fournie-Zaluski, Celine Fassot, Bruno Valentin, Dragan Djordjijevic, Annabelle Reaux-Le Goazigo, Pierre Corvol, Bernard P. Roques, and Catherine Llorens-Cortes: Brain renin-angiotensin system blockade by systemically active aminopeptidase A inhibitors: A potential treatment of salt-dependent hypertension
PNAS 2004 101: 7775-7780; published online before print May 10 2004, 10.1073/pnas.0402312101 [Abstract] [Full Text] [PDF]

Evgeny A. Budygin, Mark S. Brodie, Tatyana D. Sotnikova, Yolanda Mateo, Carrie E. John, Michel Cyr, Raul R. Gainetdinov, and Sara R. Jones: Dissociation of rewarding and dopamine transporter-mediated properties of amphetamine
PNAS 2004 101: 7781-7786; published online before print May 10 2004, 10.1073/pnas.0401418101 [Abstract] [Full Text] [PDF]

Physiology

Eric Soupene, William Inwood, and Sydney Kustu: From The Cover: Lack of the Rhesus protein Rh1 impairs growth of the green alga Chlamydomonas reinhardtii at high CO₂
PNAS 2004 101: 7787-7792; published online before print April 19 2004, 10.1073/pnas.0401809101 [Abstract] [Full Text] [PDF] [Supporting Figure]
See Commentary on page 7497

Wei Yan, Lang Ma, Kathleen H. Burns, and Martin M. Matzuk: Haploinsufficiency of kelch-like protein homolog 10 causes infertility in male mice
PNAS 2004 101: 7793-7798; published online before print May 10 2004, 10.1073/pnas.0308025101 [Abstract] [Full Text] [PDF] [Supporting Text]

Yu-Fung Lin, Kimberly Raab-Graham, Yuh Nung Jan, and Lily Yeh Jan: NO stimulation of ATP-sensitive potassium channels: Involvement of Ras/mitogen-activated protein kinase pathway and contribution to neuroprotection
PNAS 2004 101: 7799-7804; published online before print May 10 2004, 10.1073/pnas.0402496101 [Abstract] [Full Text] [PDF] [Supporting Information]

Plant Biology

Shin-ichi Arimura, Junko Yamamoto, Gen Paul Aida, Mikio Nakazono, and Nobuhiro Tsutsumi: Frequent fusion and fission of plant mitochondria with unequal nucleoid distribution
PNAS 2004 101: 7805-7808; published online before print May 10 2004, 10.1073/pnas.0401077101 [Abstract] [Full Text] [PDF] [Supporting Movies]

Wolfram Weckwerth, Marcelo Ehlers Loureiro, Kathrin Wenzel, and Oliver Fiehn: Differential metabolic networks unravel the effects of silent plant phenotypes
PNAS 2004 101: 7809-7814; published online before print May 10 2004, 10.1073/pnas.0303415101 [Abstract] [Full Text] [PDF] [Supporting Figures]

Mark P. Running, Meirav Lavy, Hasana Sternberg, Arnaud Galichet, Wilhelm Gruissem, Sarah Hake, Naomi Ori, and Shaul Yalovsky: Enlarged meristems and delayed growth in plp mutants result from lack of CaaX prenyltransferases
PNAS 2004 101: 7815-7820; published online before print May 5 2004, 10.1073/pnas.0402385101 [Abstract] [Full Text] [PDF] [Supporting Text]

Melisa K. Wall, Lesley A. Mitchenall, and Anthony Maxwell: Arabidopsis thaliana DNA gyrase is targeted to chloroplasts and mitochondria
PNAS 2004 101: 7821-7826; published online before print May 10 2004, 10.1073/pnas.0400836101 [Abstract] [Full Text] [PDF] [Supporting Text]

Hao Yu, Toshiro Ito, Yuanxiang Zhao, Jinrong Peng, Prakash Kumar, and Elliot M. Meyerowitz: Floral homeotic genes are targets of gibberellin signaling in flower development
PNAS 2004 101: 7827-7832; published online before print May 5 2004, 10.1073/pnas.0402377101 [Abstract] [Full Text] [PDF] [Supporting Figures]

Shuichi Yanagisawa, Ai Akiyama, Hiroaki Kisaka, Hirofumi Uchimiya, and Tetuya Miwa: Metabolic engineering with Dof1 transcription factor in plants: Improved nitrogen assimilation and growth under low-nitrogen conditions
PNAS 2004 101: 7833-7838; published online before print May 10 2004, 10.1073/pnas.0402267101 [Abstract] [Full Text] [PDF]

CORRECTIONS

Correction for Gigord et al., Negative frequency-dependent selection maintains a dramatic flower color polymorphism in the rewardless orchid Dactylorhiza sambucina (L.) Soò, PNAS 2001 98:6253-6255 [Extract] [Full Text] [PDF]

Correction for Martin et al., Defective CD95/APO-1/Fas signal complex formation in the human autoimmune lymphoproliferative syndrome, type Ia, PNAS 1999 96:4552-4557 [Extract] [Full Text] [PDF]