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Articles 1 - 9 of 9
Full-Text Articles in Biotechnology
Pattern Of Disease After Murine Hepatitis Virus Strain 3 Infection Correlates With Macrophage Activation And Not Viral Replication, M. Pope, O. Rotstein, E. Cole, S. Sinclair, Rebecca D. Parr, B. Cruz, R. Fingerote, S. Chung, R. Gorczynski, L. Fung, J. Leibowitz, Y. S. Rao, G. Levy
Pattern Of Disease After Murine Hepatitis Virus Strain 3 Infection Correlates With Macrophage Activation And Not Viral Replication, M. Pope, O. Rotstein, E. Cole, S. Sinclair, Rebecca D. Parr, B. Cruz, R. Fingerote, S. Chung, R. Gorczynski, L. Fung, J. Leibowitz, Y. S. Rao, G. Levy
Faculty Publications
Murine hepatitis virus strain (MHV-3) produces a strain-dependent pattern of disease which has been used as a model for fulminant viral hepatitis. This study was undertaken to examine whether there was a correlation between macrophage activation and susceptibility or resistance to MHV-3 infection. Peritoneal macrophages were isolated from resistant A/J and susceptible BALB/cJ mice and, following stimulation with MHV-3 or lipopolysaccharide (LPS), analyzed for transcription of mRNA and production of interleukin-1 (IL-1), tumor necrosis factor alpha (TNF-alpha), transforming growth factor beta (TGF-beta), mouse fibrinogen-like protein (musfiblp), tissue factor (TF), leukotriene B4, and prostaglandin E2 (PGE2). Macrophages from BALB/cJ mice produced …
A High-Bandwidth Frequency-Domain Photon Migration Instrument For Clinical Use, Steen J. Madsen, Eric R. Anderson, Richard C. Haskell, Bruce J. Tromberg
A High-Bandwidth Frequency-Domain Photon Migration Instrument For Clinical Use, Steen J. Madsen, Eric R. Anderson, Richard C. Haskell, Bruce J. Tromberg
All HMC Faculty Publications and Research
We have developed a high-bandwidth frequency-domain photon migration (FDPM) instrument which is capable of noninvasively determining the optical properties of biological tissues in near-real-time. This portable, inexpensive, diode-based instrument is unique in the sense that we employ direct diode laser modulation and avalanche photodiode detection. Diffusion models were used to extract the optical properties (absorption and transport scattering coefficients)of tissue-simulating solutions.from the 300 kHz to I GHz photon density wave data.
Phylogenetic Diversity Of The Bacterial Community From A Microbial Mat At An Active, Hydrothermal Vent System, Loihi Seamount, Hawaii, Craig L. Moyer, Fred C. Dobbs, David M. Karl
Phylogenetic Diversity Of The Bacterial Community From A Microbial Mat At An Active, Hydrothermal Vent System, Loihi Seamount, Hawaii, Craig L. Moyer, Fred C. Dobbs, David M. Karl
OES Faculty Publications
The phylogenetic diversity of small-subunit rRNA genes associated,vith the domain Bacteria was examined (by using previously defined operational taxonomic units [C. L. Moyer, F. C. Dobbs, and D. M. Karl, Appl. Environ. Microbiol. 60:871-879, 1994]; those for Pele's Vents Bacteria are hereafter abbreviated PVB OTUs) with samples from a microbial mat at an active, deep-sea hydrothermal vent system. A cluster of phylogenetically related PVB OTUs (OTUs 2, 3, 6, and 8) was closely affiliated with Thiovulum sp. contained within the epsilon subclass of the class Proteobacteria and accounted for 60.5% of the small-subunit rRNA bacterial clone library from Pele's Vents. …
Enhancer Trap Technique: A Novel Tool For Identification And Developmental Characterization Of Genes Of Drosophila, Amit Singh
Biology Faculty Publications
The classical technique of mutational screen for identification of genes controlling early development has now approached saturation. A new era in genetic identification and developmental characterization of genes in Drosophila has commenced with the advent of the enhancer trap technique. This technique involves mobilization of a P-lacZ vector to diverse chromosomal locations in the fruit fly genome to bring it under the regulation of developmentally expressed genes or their enhancer elements. The technique offers a strikingly elegant method of gaining entry into fruit fly genes.
An Improved Method For Chemical Devitellinization Of X-Gal Stained Drosophila Embryos, Amit Singh, Madhuri Kango-Singh, P. Sinha
An Improved Method For Chemical Devitellinization Of X-Gal Stained Drosophila Embryos, Amit Singh, Madhuri Kango-Singh, P. Sinha
Biology Faculty Publications
In Drosophila developmental biological studies, X-gal staining is commonly employed to study the spatio-temporal expression of the lacZ reporter gene in the transformed flies or their embryos. Study of the lacZ pattern in embryos often suffers from the lack of an efficient and high yieldirrg technique for devitellinization of X-gal stained embryos. Devitellinization techniques employed during antibody staining, in situ hybridization or embryonic cuticular preparations generally do not give satisfactory results when used for similar purpose in X-gal stained embryos. This results in the flaky appearance of the blue stain. We present here an improved chemical devitellinization technique which gives …
Biotechnology : Exposing The Myths & Realities, Sue Sutherland, Alan Lymbery
Biotechnology : Exposing The Myths & Realities, Sue Sutherland, Alan Lymbery
Journal of the Department of Agriculture, Western Australia, Series 4
Biotechnology has become one of the buzz words of the 1990s. Sounds impressive but what's it all about? Sue Sutherland and Alan Lymbery unravel some of the jargon and explore its potential for Western Australian agriculture.
Association Of Mouse Fibrinogen-Like Protein With Murine Hepatitis Virus-Induced Prothrombinase Activity, Rebecca D. Parr, Laisum Fung, Jeffrey Reneker, Nancy Myers-Mason, Julian L. Leibowitz, Gary Levy
Association Of Mouse Fibrinogen-Like Protein With Murine Hepatitis Virus-Induced Prothrombinase Activity, Rebecca D. Parr, Laisum Fung, Jeffrey Reneker, Nancy Myers-Mason, Julian L. Leibowitz, Gary Levy
Faculty Publications
Previously, we demonstrated induction of a unique macrophage prothrombinase during infection of BALB/cJ mice by mouse hepatitis virus strain 3 (MHV-3). By immunologic screening, a clone representing this prothrombinase was isolated from a cDNA library and sequenced. The sequence identified this clone as representing part of a gene, musfiblp, that encodes a fibrinogen-like protein. Six additional clones were isolated, and one clone, p11-3-1, encompassed the entire coding region of musfiblp. Murine macrophages did not constitutively express musfiblp but, when infected with MHV-3, synthesized musfiblp-specific mRNA. musfiblp mRNA induction was earlier and significantly greater in BALB/cJ than A/J …
Molecular Cloning And Rare Cleavage Mapping Of Human 2p, 6q, 8q, 12q, And 18q Telomeres, Roberto A. Macina, Ken Morii, Xue-Lan Hu, Dimitri G. Negorev, Chrysanthe Spais, Lisa A. Ruthig, Harold C. Riethman
Molecular Cloning And Rare Cleavage Mapping Of Human 2p, 6q, 8q, 12q, And 18q Telomeres, Roberto A. Macina, Ken Morii, Xue-Lan Hu, Dimitri G. Negorev, Chrysanthe Spais, Lisa A. Ruthig, Harold C. Riethman
Medical Diagnostics & Translational Sciences Faculty Publications
Large terminal fragments of human chromosomes 2p, 6q, 8q, 12q, and 18q were cloned using yeast artificial chromosomes (YACs). RecA-assisted restriction endonuclease (RARE) cleavage analysis of genomic DNA samples from 11 unrelated individuals using YAC-derived probes confirmed the telomeric localizations of the half-YACs studied. The cloned Fragments provide telomeric closure of maps for the respective chromosome arms and will supply the reagents needed for analyzing and sequencing these distal subtelomeric regions.
In Vivo Regulation Of Wheat-Leaf Phosphoenolpyruvate Carboxylase By Reversible Phosphorylation, Stephen M. G. Duff, Raymond Chollet
In Vivo Regulation Of Wheat-Leaf Phosphoenolpyruvate Carboxylase By Reversible Phosphorylation, Stephen M. G. Duff, Raymond Chollet
Department of Biochemistry: Faculty Publications
Regulation of C3 phosphoenolpyruvate carboxylase (PEPC) and its protein-serine/threonine kinase (PEPC-PK) was studied in wheat (Trificum aesfivum) leaves that were excised from low-N-grown seedlings and subsequently illuminated and/or supplied with 40 mM KNO3. The apparent phosphorylation status of PEPC was assessed by its sensitivity to i-malate inhibition at suboptimal assay conditions, and the activity state of PEPC-PK was determined by the in vitro 32P labeling of purified maize dephospho-PEPC by [y32PIATP/ Mg. lllumination (±NO3-) for 1 h led to about a 4.5-fold increase in the 50% inhibition constant for i-malate, which …