Scholarly Work - Montana INBRE (IDeA Networks of Biomedical Research Excellence)
Recent Submissions
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Control of barley (Hordeum vulgare L.) development and senescence by the interaction between a chromosome six grain protein content locus, day length, and vernalization
(2011-11)Regulatory processes controlling traits such as anthesis timing and whole-plant senescence are of primary importance for reproductive success and for crop quality and yield. It has previously been demonstrated that the ... -
The Prevalence of STIV c92-Like Proteins in Acidic Thermal Environments
(2011-05)A new type of viral-induced lysis system has recently been discovered for two unrelated archaeal viruses, STIV and SIRV2. Prior to the lysis of the infected host cell, unique pyramid-like lysis structures are formed on the ... -
Resident Alveolar Macrophages Are Susceptible to and Permissive of Coxiella burnetii Infection
(2012-12)Coxiella burnetii, the causative agent of Q fever, is a zoonotic disease with potentially life-threatening complications in humans. Inhalation of low doses of Coxiella bacteria can result in infection of the host alveolar ... -
The polymorphic pseudokinase ROP5 controls virulence in Toxoplasma gondii by regulating the active kinase ROP18
(2012-11)Secretory polymorphic serine/threonine kinases control pathogenesis of Toxoplasma gondii in the mouse. Genetic studies show that the pseudokinase ROP5 is essential for acute virulence, but do not reveal its mechanism of ... -
Discovery of a splicing regulator required for cell cycle progression
(2013-02)In the G1 phase of the cell division cycle, eukaryotic cells prepare many of the resources necessary for a new round of growth including renewal of the transcriptional and protein synthetic capacities and building the ... -
Alpha-toxin Induces Programmed Cell Death of Human T cells, B cells, and Monocytes During USA300 Infection
(2012-05)This investigation examines the influence of alpha-toxin (Hla) during USA300 infection of human leukocytes. Survival of an USA300 isogenic deletion mutant of hla (USA300Δhla) in human blood was comparable to the parental ... -
Virus-like Particle-Induced Protection against MRSA Pneumonia Is Dependent on IL-13 and Enhancement of Phagocyte Function
(2012-07)The importance of the priming of the lung environment by past infections is being increasingly recognized. Exposure to any given antigen can either improve or worsen the outcome of subsequent lung infections, depending on ... -
Transcriptomic and proteomic analyses of the Aspergillus fumigatus hypoxia response using an oxygen-controlled fermenter
(2012-02)Background Aspergillus fumigatus is a mold responsible for the majority of cases of aspergillosis in humans. To survive in the human body, A. fumigatus must adapt to microenvironments that are often characterized by low ... -
The SaeR/S gene regulatory system induces a pro-inflammatory cytokine response during Staphylococcus aureus infection
(2011-05)Community-associated methicillin-resistant Staphylococcus aureus accounts for a large portion of the increased staphylococcal disease incidence and can cause illness ranging from mild skin infections to rapidly fatal sepsis ... -
A systematic screen to discover and analyze apicoplast proteins identifies a conserved and essential protein import factor
(2011-12)Parasites of the phylum Apicomplexa cause diseases that impact global health and economy. These unicellular eukaryotes possess a relict plastid, the apicoplast, which is an essential organelle and a validated drug target. ... -
Regulation of human formyl peptide receptor 1 synthesis: role of single nucleotide polymorphisms, transcription factors, and inflammatory mediators
(2011-12)The gene encoding the human formyl peptide receptor 1 (FPR1) is heterogeneous, containing numerous single nucleotide polymorphisms (SNPs). Here, we examine the effect of these SNPs on gene transcription and protein ... -
Nuclease modulates biofilm formation in community-associated methicillin-resistant Staphylococcus aureus
(2011-11)Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) is an emerging contributor to biofilm-related infections. We recently reported that strains lacking sigma factor B (sigB) in the USA300 lineage of ... -
In vivo hypoxia and a fungal alcohol dehydrogenase influence the pathogenesis of invasive pulmonary aspergillosis
(2011-07)Currently, our knowledge of how pathogenic fungi grow in mammalian host environments is limited. Using a chemotherapeutic murine model of invasive pulmonary aspergillosis (IPA) and 1H-NMR metabolomics, we detected ethanol ... -
SREBP coordinates iron and ergosterol homeostasis to mediate triazole drug and hypoxia responses in the human fungal pathogen Aspergillus fumigatus
(2011-12)Sterol regulatory element binding proteins (SREBPs) are a class of basic helix-loop-helix transcription factors that regulate diverse cellular responses in eukaryotes. Adding to the recognized importance of SREBPs in human ... -
Hepatocytes lacking thioredoxin reductase 1 have normal replicative potential during development and regeneration
(2010-07)Cells require ribonucleotide reductase (RNR) activity for DNA replication. In bacteria, electrons can flow from NADPH to RNR by either a thioredoxin-reductase- or a glutathione-reductase-dependent route. Yeast and plants ... -
Evolution of metabolic network organization
(2010-05)Background Comparison of metabolic networks across species is a key to understanding how evolutionary pressures shape these networks. By selecting taxa representative of different lineages or lifestyles and using a ... -
A major grain protein content locus on barley (Hordeum vulgare L.) chromosome 6 influences flowering time and sequential leaf senescence
(2010-06)Timing of various developmental stages including anthesis and whole-plant (‘monocarpic’) senescence influences yield and quality of annual crops. While a correlation between flowering/seed filling and whole-plant senescence ... -
Metagenomes from high-temperature chemotrophic systems reveal geochemical controls on microbial community structure and function
(2010-03)The Yellowstone caldera contains the most numerous and diverse geothermal systems on Earth, yielding an extensive array of unique high-temperature environments that host a variety of deeply-rooted and understudied Archaea, ... -
T. gondii RP promoters & knockdown reveal molecular pathways associated with proliferation and cell-cycle arrest
(2010-11)Molecular pathways regulating rapid proliferation and persistence are fundamental for pathogens but are not elucidated fully in Toxoplasma gondii. Promoters of T. gondii ribosomal proteins (RPs) were analyzed by EMSAs and ... -
Coordinated progression through two subtranscriptomes underlies the tachyzoitecycle of Toxoplasma gondii
(2010-08)Background Apicomplexan parasites replicate by varied and unusual processes where the typically eukaryotic expansion of cellular components and chromosome cycle are coordinated with the biosynthesis of parasite-specific ...
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