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CreatorTitleDescriptionSubjectDate
326 Capecchi, Mario R.Initiation of E. coli proteins.Recent experiments and theoretical arguments suggest that formylmethionyl sRNA is employed as an initiator of protein synthesis. Studies also indicated that other phage proteins synthesized in the in vitro system were initiated with formylmethionine. These observations provided a basis for believin...Alanine; Chromatography, Paper; Dipeptides1966-06
327 Dale, ColinA novel human-infection-derived bacterium provides insights into the evolutionary origins of mutualistic insect-bacterial symbiosesDespite extensive study, little is known about the origins of the mutualistic bacterial endosymbionts that inhabit approximately 10% of the world's insects. In this study, we characterized a novel opportunistic human pathogen, designated ‘‘strain HS,'' and found that it is a close relative of th...2012-01-01
328 Coley, Phyllis D.Chemical and bioactive natural products from microthyriaceae sp., an endophytic fungus from a tropical grassIn screening for natural products with antiparasitic activity, an endophytic fungus, strain F2611, isolated from above-ground tissue of the tropical grass Paspalum conjugatum (Poaceae) in Panama, was chosen for bioactive principle elucidation. Cultivation on malt extract agar (MEA) followed by bioas...2014-01-01
329 Crespo, Jose GuillermoA review of chemosensation and related behavior in aquatic insectsInsects that are secondarily adapted to aquatic environments are able to sense odors from a diverse array of sources. The antenna of these insects, as in all insects, is the main chemosensory structure and its input to the brain allows for integration of sensory information that ultimately ends in b...2011-09-13
330 Hughes, Kelly T.ATPase-Independent Type-III Protein Secretion in Salmonella entericaType-III protein secretion systems are utilized by gram-negative pathogens to secrete building blocks of the bacterial flagellum, virulence effectors from the cytoplasm into host cells, and structural subunits of the needle complex. The flagellar type-III secretion apparatus utilizes both the energy...2014-01-01
331 Sekercioglu, CaganA birders quide to TurkeyAs I write, it is early December and the woods outside my window lay dusted with snow like a holiday card by Currier and Ives. A minute ago, I looked up and caught a glimpse of an adult Cooper's Hawk dashing swiftly through the trees. It swooped up, landed on a branch, then briefly shook its tail an...2006-01-01
332 Parkinson, John StansfieldAn unorthodox sensory adaptation site in the E. coli serine chemoreceptorThe serine chemoreceptor of E. coli contains four canonical methylation sites for sensory adaptation that lie near inter-subunit helix interfaces of the Tsr homodimer. An unexplored fifth methylation site, E502, lies at an intra-subunit helix interface, closest to the HAMP domain that controls input...2014-01-01
333 Sekercioglu, CaganCauses and consequences of bird extinctionsIncreased human domination of the planet has caused the declines and extinctions of countless species. Each species has not only intrinsic value, but ecological functions of organisms are also essential for the integrity of ecosystems that allow people to benefit from essential free ecosystem servic...2003-01-01
334 Sekercioglu, CaganCorrelates of elevational specialisation in Southeast Asian tropical birdsThe understanding of elevational selectivity in extremely rich tropical biotas is critical to the study of accelerating human-mediated environmental changes (e.g., deforestation and global climate warming). This paper explores the characteristics of Southeast Asian birds that are altitudinal special...2012-01-01
335 Adler, Frederick R.Deconvolution of isotope signals from bundles of multiple hairsSegmental analysis of hair has been used in diverse fields ranging from forensics to ecology to measure the concentration of substances such as drugs and isotopes. Multiple hairs are typically combined into a bundle for segmental analysis to obtain a high-resolution series of measurements. Individua...2014-01-01
336 Crespo, Jose GuillermoDislodgement effect of natural semiochemicals released by disturbed triatomines: a possible alternative monitoring toolThe quick detection of domestic and peridomestic triatomines in their environments becomes difficult without the use of dislodgement substances that flush them out from their shelters. At present, tetramethrin 0.2% is being widely used in control programs. Although it is an efficient dislodging agen...2013-01-01
337 Clayton, Dale H.Does avian malaria reduce fledging success: an experimental test of the selection hypothesisLike many parasites, avian haematozoa are often found at lower infection intensities in older birds than young birds. One explanation, known as the "selection" hypothesis, is that infected young birds die before reaching adulthood, thus removing the highest infection intensities from the host popul...2013-01-01
338 Beckerle, Mary C.Mutations in Drosophila enabled and rescue by human vasodilator-stimulated phosphoprotein (VASP) indicate important functional roles for Ena/VASP homology domain 1 (EVH1) and EVH2 domainsDrosophila Enabled (Ena) was initially identified as a dominant genetic suppressor of mutations in the Abelson tyrosine kinase and, more recently, as a member of the Ena/human vasodilator-stimulated phosphoprotein (VASP) family of proteins. We have used genetic, biochemical, and cell biological appr...Drosophila Ena; VASP1998
339 Jorgensen, ErikMolecular basis of synaptic vesicle cargo recognition by the endocytic sorting adaptor stonin 2Synaptic transmission depends on clathrin-mediated recycling of synaptic vesicles (SVs). How select SV proteins are targeted for internalization has remained elusive. Stonins are evolutionarily conserved adaptors dedicated to endocytic sorting of the SV protein synaptotagmin. Our data identify the m...2007
340 Carrier, David R.Electromyographic pattern of the gular pump in monitor lizardsGular pumping in monitor lizards is known to play an important role in lung ventilation, but its evolutionary origin has not yet been addressed. To determine whether the gular pump derives from the buccal pump of basal tetrapods or is a novel invention, we investigated the electromyographic activity...Electromyographic pattern; Gular pump; Varanus exanthematicus; Lung ventilation; Evolution2001
341 Capecchi, Mario R.Lack of angiotensin II-facilitated erythropoiesis causes anemia in angiotensin-converting enzyme-deficient miceWhile nephrologists often observe reduced hematocrit associated with inhibitors of angiotensin-converting enzyme (ACE), the basis for this effect is not well understood. We now report that two strains of ACE knockout mice have a normocytic anemia associated with elevated plasma erythropoietin levels...ACE2000-10-31
342 Bowling, David R.Interannual variation in seasonal drivers of soil respiration in a semi-arid Rocky Mountain meadowSemi-arid ecosystems with annual moisture inputs dominated by snowmelt cover much of the western United States, and a better understanding of their seasonal drivers of soil respiration is needed to predict consequences of climatic change on soil CO2 efflux. We assessed the relative importance of tem...2012-01-01
343 Bohs, Lynn A.Solanum maternum (Solanaceae), a new Bolivian relative of the tree tomatoA new species endemic to Bolivia, Solanum maternum, is described. Solanum maternum belongs to a group of taxa formerly recognized as the genus Cyphomandra. Solanum maternum is morphologically very similar to the tree tomato, Solanum betaceum, and may be its closest wild relative.Solanum maternum; Cyphomandra1997
344 Capecchi, Mario R.; Thomas, Kirk R.Swaying is a mutant allele of the proto-oncogene Wnt-1Mice homozygous for the recessive mutation swaying (SW) are characterized by ataxia and hypertonia, attributed to the malformation of anterior regions of the cerebellum. We show that SW is a deletion of a single base pair from the proto-oncogene Wnf-1. The deletion is predicted to cause premature t...Swaying allele; protooncogene Wnt-1; Mutant genes; Mutant alleles1991
345 Clayton, Dale H.; Bush, Sarah ElizabethIs melanin a defense against feather-feeding lice?The adaptive basis of plumage color has received much attention, including the finding that color can reveal information about parasite loads to potential mates. A related possibility, that color may be a direct defense against parasites, has received less attention.Columba livia; Columbiformes; Ectoparasites; Columbicola columbae; Campanulotes compare; Plumage color; Eumelanin; Preening2006
346 Bohs, Lynn A.Major clades in Solanum based on ndhF sequence dataAnalysis of sequence data from the chloropiast gene ndhF identifies at least 12 major well-supported clades within the genus Solanum. These are briefly described, given informal clade names, and compared with the groups recognized by previous Solanum workers. Non-molecular synapomorphies are propos...Solanum; ndhF2005
347 Jorgensen, ErikAxons break in animals lacking B-spectrinAxons and dendrites can withstand acute mechanical strain despite their small diameter. In this study, we demonstrate that β-spectrin is required for the physical integrity of neuronal processes in the nematode Caenorhabditis elegans. Axons in β-spectrin mutants spontaneously break.2007
348 Hughes, Kelly T.Phase variation in Salmonella: analysis of Hin recombinase and hix recombination site interaction in vivoThe bacteriophage P22-based challenge phase selection was used to characterize the binding of Salmonella Hin recombinase to the wild-type hixL and hixR recombination sites, as well as to mutant and synthetic hix sequences in vivo. Hin recombinase binds to the hixL or hixR recombination sites and rep...1988
349 Coley, Phyllis D.; Kursar, Thomas A.Using ecological criteria to design plant collection strategies for drug discoveryTropical forests are one of the most diverse and endangered habitats on earth. They have also been portrayed as a source of future pharmaceuticals, yet finding useful compounds can be both scientifically and politically challenging. Increasingly, over the past decade, the potential value of medicina...Drug discovery; Biodiversity2003
350 Adler, Frederick R.Super- and coinfection: filling the rangeHow many different strains of a disease can coexist in a single population of hosts? What effect do different mechanisms of coexistence have on the properties of diseases? The principle of competitive exclusion (Armstrong and McGehee 1980; Levin 1970) states that no more species can coexist in a sys...Superinfection; Virulence; Coexistence2002
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