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Articles 1 - 5 of 5
Full-Text Articles in Life Sciences
Identification And Rna Binding Characterization Of Plant Virus Rna Silencing Suppressor Proteins, Jeff Vargason, Carissa J. Burch, Jesse W. Wilson
Identification And Rna Binding Characterization Of Plant Virus Rna Silencing Suppressor Proteins, Jeff Vargason, Carissa J. Burch, Jesse W. Wilson
Faculty Publications - Department of Biological & Molecular Science
Suppression is a common mechanism employed by viruses to evade the antiviral effects of the host’s RNA silencing pathway. The activity of suppression has commonly been localized to gene products in the virus, but the variety of mechanisms used in suppression by these viral proteins spans nearly the complete biochemical pathway of RNA silencing in the host. This review describes the agrofiltration assay and a slightly modified version of the agro-infiltration assay called co-infiltration, which are common methods used to observe RNA silencing and identify viral silencing suppressor proteins in plants, respectively. In addition, this review will provide an overview …
Quantitative Trait Loci Mapping Reveals Candidate Pathways Regulating Cell Cycle Duration In Plasmodium Falciparum, Heather B. Reilly Ayala, Mark A. Wacker, Geoffrey Siwo, Michael T. Ferdig
Quantitative Trait Loci Mapping Reveals Candidate Pathways Regulating Cell Cycle Duration In Plasmodium Falciparum, Heather B. Reilly Ayala, Mark A. Wacker, Geoffrey Siwo, Michael T. Ferdig
Faculty Publications - Department of Biological & Molecular Science
Background: Elevated parasite biomass in the human red blood cells can lead to increased malaria morbidity. The genes and mechanisms regulating growth and development of Plasmodium falciparum through its erythrocytic cycle are not well understood. We previously showed that strains HB3 and Dd2 diverge in their proliferation rates, and here use quantitative trait loci mapping in 34 progeny from a cross between these parent clones along with integrative bioinformatics to identify genetic loci and candidate genes that control divergences in cell cycle duration. Results: Genetic mapping of cell cycle duration revealed a four-locus genetic model, including a major genetic effect …
Mitochondrial Physiology Of Diapausing And Developing Embryos Of The Annual Killifsh Austrofundulus Limnaeus: Implications For Extreme Anoxia Tolerance, Jeff Duerr, Jason E. Podrabsky
Mitochondrial Physiology Of Diapausing And Developing Embryos Of The Annual Killifsh Austrofundulus Limnaeus: Implications For Extreme Anoxia Tolerance, Jeff Duerr, Jason E. Podrabsky
Faculty Publications - Department of Biological & Molecular Science
Diapausing embryos of the annual killiWsh Austrofundulus limnaeus have the highest reported anoxia tolerance of any vertebrate and previous studies indicate modified mitochondrial physiology likely supports anoxic metabolism. Functional mitochondria isolated from diapausing and developing embryos of the annual killifish exhibited VO2, respiratory control ratios (RCR), and P:O ratios consistent with those obtained from other ectothermic vertebrate species. Reduced oxygen consumption associated with dormancy in whole animal respiration rates are correlated with maximal respiration rates of mitochondria isolated from diapausing versus developing embryos. P:O ratios for developing embryos were similar to those obtained from adult liver, but were diminished in …
Erk Activation And Cell Growth Require Cam Kinases In Mcf-7 Breast Cancer Cells, John M. Schmitt, Ellen Abell, Andrea Wagner, Monika A. Davare
Erk Activation And Cell Growth Require Cam Kinases In Mcf-7 Breast Cancer Cells, John M. Schmitt, Ellen Abell, Andrea Wagner, Monika A. Davare
Faculty Publications - Department of Biological & Molecular Science
Previous studies on MCF-7 breast cancer cells have shown that the G-protein coupled receptor (GPCR) agonist carbachol increases intracellular calcium levels and the activation of extracellular signal-regulated kinase (ERK). Calcium and calmodulin regulate the calcium/calmodulin- dependent kinase (CaM kinase) family of proteins that have been proposed to regulate ERK and gene transcription. Our results suggest that both estrogen (E2) and carbachol treatment of MCF-7 breast cancer cells trigger phosphorylation of ERK I /2 and the transcription factor Elk-1. Carbachol and estrogen triggered nearly a four- to sixfold increase in MCF-7 cell proliferation by 96 h, respectively. Carbachol-stimulated ERK activation and …
Ion Transport Processes Of Crustacean Epithelial Cells, Gregory A. Ahearn, Jeff Duerr, Zhenpeng Zhuang, Richard J. Brown, Amy Aslamkhan, Deirdre A. Killebrew
Ion Transport Processes Of Crustacean Epithelial Cells, Gregory A. Ahearn, Jeff Duerr, Zhenpeng Zhuang, Richard J. Brown, Amy Aslamkhan, Deirdre A. Killebrew
Faculty Publications - Department of Biological & Molecular Science
Epithelial cells of the gut, antennal glands, integument, and gills of crustaceans regulate the movements of ions into and across these structures and thereby influence the concentrations of ions in the hemolymph. Specific transport proteins serving cations and anions are found on apical and basolateral cell membranes of epithelia in these tissues. In recent years, a considerable research effort has been directed at elucidating their physiological and molecular properties and relating these characteristics to the overall biology of the organisms. Efforts to describe ion transport in crustaceans have focused on the membrane transfer properties of Na1/H1 exchange, calcium uptake as …