Oligosaccharide signals: from plant defense to parasite offense.

Modes and origins of mechanical and ethological isolation in angiosperms.

The anomaly of silicon in plant biology.

Oligosaccharide-specific induction of interleukin 10 production by B220+ cells from schistosome-infected mice: a mechanism for regulation of CD4+ T-cell subsets.

The redox and DNA-repair activities of Ref-1 are encoded by nonoverlapping domains.

Autoregulation of I kappa B alpha activity.

Quantitative magnetic resonance imaging of human brain perfusion at 1.5 T using steady-state inversion of arterial water.

Anergic T-lymphocyte clones have altered inositol phosphate, calcium, and tyrosine kinase signaling pathways.

Neuropoietic cytokines and activin A differentially regulate the phenotype of cultured sympathetic neurons.

Extension of Autographa californica nuclear polyhedrosis virus host range by interspecific replacement of a short DNA sequence in the p143 helicase gene.

Transplantation of glial cells enhances action potential conduction of amyelinated spinal cord axons in the myelin-deficient rat.

Calcium oscillations in pituitary gonadotrophs: comparison of experiment and theory.

Pattern recognition, chaos, and multiplicity in neural networks of excitable systems.

A method to determine the ability of drugs to diffuse through the blood-brain barrier.

Induction of apoptotic DNA damage and cell death by activation of the sphingomyelin pathway.

Cloning of the cellular receptor for amphotropic murine retroviruses reveals homology to that for gibbon ape leukemia virus.

Involvement of pp60c-src with two major signaling pathways in human breast cancer.

Construction of libraries enriched for sequence repeats and jumping clones, and hybridization selection for region-specific markers.

Techniques for measuring sulcal/gyral patterns in the brain as visualized through magnetic resonance scanning: BRAINPLOT and BRAINMAP.

How frequent are correlated changes in families of protein sequences?

The isolated catalytic domain of NIFA, a bacterial enhancer-binding protein, activates transcription in vitro: activation is inhibited by NIFL.

Interleukin 1 induces expression of the human immunodeficiency virus alone and in synergy with interleukin 6 in chronically infected U1 cells: inhibition of inductive effects by the interleukin 1 receptor antagonist.

Structure from function: screening structural models with functional data.

DNA affinity cleaving analysis of homeodomain-DNA interaction: identification of homeodomain consensus sites in genomic DNA.

Anti-CD3 antibody induces long-term remission of overt autoimmunity in nonobese diabetic mice.

Strain-specific and tissue-specific expression of mouse mast cell secretory granule proteases.

Expression cloning of a rat liver Na(+)-independent organic anion transporter.

Sialokinin I and II: vasodilatory tachykinins from the yellow fever mosquito Aedes aegypti.

Detergent-enabled transport of proteins and nucleic acids through hydrophobic solvents.

Role of adrenal renin in the regulation of adrenal steroidogenesis by corticotropin.

Deletion of the E4 region of the genome produces adenovirus DNA concatemers.

Ligand-induced activation of chimeric receptors between the erythropoietin receptor and receptor tyrosine kinases.

Stimulation of transcytosis of the polymeric immunoglobulin receptor by dimeric IgA.

Epidermal growth factor-receptor mutant lacking the autophosphorylation sites induces phosphorylation of Shc protein and Shc-Grb2/ASH association and retains mitogenic activity.

Spermidine deficiency increases +1 ribosomal frameshifting efficiency and inhibits Ty1 retrotransposition in Saccharomyces cerevisiae.

The frequency of gene targeting in yeast depends on the number of target copies.

Homeostatic regulation of hepatocyte nuclear transcription factor 1 expression in cultured hepatoma cells.

Nitrophenyl-EGTA, a photolabile chelator that selectively binds Ca2+ with high affinity and releases it rapidly upon photolysis.

A glutamine-rich hydrophobic patch in transcription factor Sp1 contacts the dTAFII110 component of the Drosophila TFIID complex and mediates transcriptional activation.

Structure of the autoinducer required for expression of Pseudomonas aeruginosa virulence genes.

Enhanced force generation by smooth muscle myosin in vitro.

Experimental specification of cell sorting, tissue spreading, and specific spatial patterning by quantitative differences in cadherin expression.

Tissue distribution of glycine N-methyltransferase, a major folate-binding protein of liver.

Prolonged and effective blockade of tumor necrosis factor activity through adenovirus-mediated gene transfer.

Stochastic component to development of class I major histocompatibility complex-specific T cells.

Extending nondirectional heterogeneity tests to evaluate simply ordered alternative hypotheses.

Crystal structure of peanut lectin, a protein with an unusual quaternary structure.

Nicotinic acid hydroxylase from Clostridium barkeri: electron paramagnetic resonance studies show that selenium is coordinated with molybdenum in the catalytically active selenium-dependent enzyme.

Oxidative metal release from metallothionein via zinc-thiol/disulfide interchange.

A membrane form of brain L-glutamate decarboxylase: identification, isolation, and its relation to insulin-dependent mellitus.

The lung amiloride-sensitive Na+ channel: biophysical properties, pharmacology, ontogenesis, and molecular cloning.

Histidine-367 of the human common beta chain of the receptor is critical for high-affinity binding of human granulocyte-macrophage colony-stimulating factor.

Saturation mutagenesis of a polyadenylation signal reveals a hexanucleotide element essential for mRNA 3' end formation in Saccharomyces cerevisiae.

Isolation and characterization of major histocompatibility complex class IIB genes from the nurse shark.

Epithelial autotoxicity of nitric oxide: role in the respiratory cytopathology of pertussis.

Attenuation of the induction of nitric oxide synthase by endogenous glucocorticoids accounts for endotoxin tolerance in vivo.

Direct measurement of forces between self-assembled proteins: temperature-dependent exponential forces between collagen triple helices.

Variable thermal emission and chlorophyll fluorescence in photosystem II particles.

A minority of carcinoma cells producing acidic fibroblast growth factor induces a community effect for tumor progression.

Functional communication in the recognition of tRNA by Escherichia coli glutaminyl-tRNA synthetase.

Delineation of the subunit composition of human proteasomes using antisera against the major histocompatibility complex-encoded LMP2 and LMP7 subunits.

A granulocyte inhibitory protein overexpressed in chronic renal disease regulates expression of interleukin 6 and interleukin 8.

Osmoprotective compounds in the Plumbaginaceae: a natural experiment in metabolic engineering of stress tolerance.

Direct observation of better hydration at the N terminus of an alpha-helix with glycine rather than alanine as the N-cap residue.

Cysteine-rich LIM domains of LIM-homeodomain and LIM-only proteins contain zinc but not iron.

Ala-->Gly mutation in the putative catalytic loop confers temperature sensitivity on Ros, insulin receptor, and insulin-like growth factor I receptor protein-tyrosine kinases.

Early auxin-induced genes encode short-lived nuclear proteins.

Physical association between nonhomologous chromosomes precedes distributive disjunction in yeast.

The mitogen-regulated protein/proliferin transcript is degraded in primary mouse embryo fibroblast but not 3T3 nuclei: altered RNA processing correlates with immortalization.

In vivo functional protein-protein interaction: nuclear targeted hsp90 shifts cytoplasmic steroid receptor mutants into the nucleus.

Gamma delta T cells contribute to immunity against the liver stages of malaria in alpha beta T-cell-deficient mice.

Gene transfer into hematopoietic stem cells: long-term maintenance of in vitro activated progenitors without marrow ablation.

Recombinant human Fab to glycoprotein D neutralizes infectivity and prevents cell-to-cell transmission of herpes simplex viruses 1 and 2 in vitro.

UV and skin cancer: specific p53 gene mutation in normal skin as a biologically relevant exposure measurement.

Specific ablation of human immunodeficiency virus Tat-expressing cells by conditionally toxic retroviruses.

A conserved stem-loop structure in the 3' untranslated region of procyclin mRNAs regulates expression in Trypanosoma brucei.

Mode of cell proliferation in the developing mouse neocortex.

Topography of a binding site for small amnestic peptides deduced from structure-activity studies: relation to amnestic effect of amyloid beta protein.

Cellular adaptation to opiates alters ion-channel mRNA levels.

Kappa B enhancer-binding complexes that do not contain NF-kappa B are developmentally regulated in mammalian brain.

gamma-Aminobutyric acid is an inhibitory neurotransmitter restricting the release of luteinizing hormone-releasing hormone before the onset of puberty.

Role of septal vasopressin innervation in paternal behavior in prairie voles (Microtus ochrogaster).

DNA bound by the Oxytricha telomere protein is accessible to telomerase and other DNA polymerases.

Plant hormone ethylene is a Norrish type II product from enzymically generated triplet 1-butanal.

p53 binds single-stranded DNA ends and catalyzes DNA renaturation and strand transfer.

The retinoblastoma gene product is a cell cycle-dependent, nuclear matrix-associated protein.

The crystal structure of a mutant protein with altered but improved hydrophobic core packing.