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Microbiology Commons™

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1996

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Articles 31 - 45 of 45

Full-Text Articles in Microbiology

Antibody To The Ligand For Cd40 (Gp39) Inhibits Murine Aids-Associated Splenomegaly, Hypergammaglobulinemia, And Immunodeficiency In Disease-Susceptible C57bl/6 Mice., Kathy A. Green, Karen M. Crassi, Jon D. Laman, Arjan Schoneveld, Rendall R. Strawbridge, Teresa M. Foy, Randolph J. Noelle, William R. Green Apr 1996

Antibody To The Ligand For Cd40 (Gp39) Inhibits Murine Aids-Associated Splenomegaly, Hypergammaglobulinemia, And Immunodeficiency In Disease-Susceptible C57bl/6 Mice., Kathy A. Green, Karen M. Crassi, Jon D. Laman, Arjan Schoneveld, Rendall R. Strawbridge, Teresa M. Foy, Randolph J. Noelle, William R. Green

Dartmouth Scholarship

Infection of genetically susceptible C57BL/6 mice with the LP-BM5 isolate of murine retroviruses cause profound splenomegaly, hypergammaglobulinemia, lymphadenopathy, and an immunodeficiency syndrome which includes the development of terminal B-cell lymphomas. Because many of these and the other manifestations of LP-BM5 virus-induced disease are similar to those seen in AIDS, this syndrome has been named murine AIDS, or MAIDS. Previous reports have shown that the onset of MAIDS depends on the presence of both CD41 T cells and B cells and have suggested that CD41 T-cell-B-cell interactions are important to disease pathogenesis. Here, we assessed the possibility that interactions between CD40 …

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Examination Of The Endosomal And Lysosomal Pathways In Dictyostelium Discoideum Myosin I Mutants, Lesly A. Temesvari, John M. Bush, Michelle D. Peterson, Kristine D. Novak, Margaret A. Titus, James A. Cardelli Mar 1996

Examination Of The Endosomal And Lysosomal Pathways In Dictyostelium Discoideum Myosin I Mutants, Lesly A. Temesvari, John M. Bush, Michelle D. Peterson, Kristine D. Novak, Margaret A. Titus, James A. Cardelli

Publications

The role of myosin Is in endosomal trafficking and the lysosomal system was investigated in a Dictyostelium discoideum myosin I double mutant myoB-/C-, that has been previously shown to exhibit defects in fluid-phase endocytosis during growth in suspension culture (Novak et al., 1995). Various properties of the endosomal pathway in the myoB-/C- double mutant as well as in the myoB- and myoC- single mutants, including intravesicular pH, and intracellular retention time and exocytosis of a fluid phase marker, were found to be indistinguishable from wild-type parental cells. The intimate connection between the contractile vacuole complex and the endocytic pathway in …

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Infection Of Primary Human Fetal Astrocytes By Human Herpesvirus 6, Jun He, Micheline Mccarthy, Yi Zhou, Bala Chandran, Charles Wood Feb 1996

Infection Of Primary Human Fetal Astrocytes By Human Herpesvirus 6, Jun He, Micheline Mccarthy, Yi Zhou, Bala Chandran, Charles Wood

Nebraska Center for Virology: Faculty Publications

Human herpesvirus 6 (HHV-6) is a lymphotropic betaherpesvirus which productively infects human CD4+ T cells and monocytes. HHV-6 is the etiologic agent for exanthem subitum (roseola), and it is well-known that central nervous system complications occur frequently during the course of HHV-6-associated disease. In addition, HHV-6 has been associated with encephalitis or encephalopathy. However, very little is known about its tropism for neural cells. There are reports that HHV-6 may infect some glial cell lines, but whether it can infect any primary neural cells is not known. Our studies show that both HHV-6A (GS) and HHV-6B (Z-29) can infect …

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Artificial Selection On Jhe Activity In Gryllus Assimilis: Nature Of Activity Differences Between Lines And Effect On Jh Binding And Metabolism, Anthony J. Zera, Jeffrey Sall, Robert Schwartz Feb 1996

Artificial Selection On Jhe Activity In Gryllus Assimilis: Nature Of Activity Differences Between Lines And Effect On Jh Binding And Metabolism, Anthony J. Zera, Jeffrey Sall, Robert Schwartz

Anthony Zera Publications

Genetic lines of the cricket Gryllus assimilis selected for elevated vs. decreased activity of hemolymph juvenile hormone esterase (JHE) exhibited a 6.8-fold difference in enzyme activity by the seventh generation of selection. This documents that hemolymph JHE activity has the capability for rapid evolutionary change. This is the only insect endocrine trait for which such data are currently available. The difference in hemolymph JHE activity between the lines was due, to an equivalent degree, to variation in whole-cricket enzyme activity and allocation of JHE activity to the hemolymph compartment. No differences in kinetic or thermostability characteristics were observed between JHEs …

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The Lipooligosaccharides Of Haemophilus Ducreyi Are Highly Sialylated, William Melaugh, A A. Campagnari, B W. Gibson Jan 1996

The Lipooligosaccharides Of Haemophilus Ducreyi Are Highly Sialylated, William Melaugh, A A. Campagnari, B W. Gibson

Chemistry Faculty Publications

The major lipooligosaccharides of the sexually transmitted pathogen Haemophilus ducreyi 35000 have been previously found to terminate in N-acetyllactosamine and sialyl-N-acetyllactosamine, Neu5Ac alpha 2-->3Gal beta 1-->4GlcNAc (W. Melaugh, N. J. Phillips, A. A. Campagnari, M. V. Tullius, and B. W. Gibson, Biochemistry 33: 13070-13078, 1994). In this study, mass spectrometry and composition analyses have shown that the lipooligosaccharides from three other H. ducreyi strains also contain N-acetyllactosamine and are highly sialylated (approximately 30 to 50%), although one African strain was found to contain neither of these structural features.

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Cyanonews (Vol. 12, No. 2, July 1996), Jeff Elhai Jan 1996

Cyanonews (Vol. 12, No. 2, July 1996), Jeff Elhai

CyanoNews

CyanoNews was a newsletter that served the cyanobacteriological community from 1985 to 2003, with content provided by readers (sort of a blog before there were blogs). The newsletter reported new findings from the lab, summaries of recent meetings (often provided by graduate students and post-docs entering the field), positions sought or available, life transitions, a compendium of recent cyanobacteria-related articles, and other items of interest to those who study cyanobacteria.

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Cyanonews (Vol. 12, No. 1, January 1996), Jeff Elhai Jan 1996

Cyanonews (Vol. 12, No. 1, January 1996), Jeff Elhai

CyanoNews

CyanoNews was a newsletter that served the cyanobacteriological community from 1985 to 2003, with content provided by readers (sort of a blog before there were blogs). The newsletter reported new findings from the lab, summaries of recent meetings (often provided by graduate students and post-docs entering the field), positions sought or available, life transitions, a compendium of recent cyanobacteria-related articles, and other items of interest to those who study cyanobacteria.

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Herpesvirus-Like Dna In Aids Kaposi’S Sarcoma In Argentina [Letter To The Editor], Carlos E. Sosa, Jorge A. Benetucci, Laura M. Sieczkowski, Anibal Vazquez, Xue-Lan Wen, Marianna Baum, Winslow Klaskala, William J. Harrington Jr., Charles Wood Jan 1996

Herpesvirus-Like Dna In Aids Kaposi’S Sarcoma In Argentina [Letter To The Editor], Carlos E. Sosa, Jorge A. Benetucci, Laura M. Sieczkowski, Anibal Vazquez, Xue-Lan Wen, Marianna Baum, Winslow Klaskala, William J. Harrington Jr., Charles Wood

Nebraska Center for Virology: Faculty Publications

First paragraph: Recently, Chang et al., using a new molecular biology technique termed Representational Difference Analysis, found herpesvirus-like DNA (KSHV) in AIDS patients with Kaposi’s sarcoma (KS). The presence of KSHV DNA sequences suggests that a new human herpesvirus may be associated with KS. The 5′ end of the 1853-bp flanking region of KSHV (nucleotides 1 to 607) was found to have 66 and 67% homologies to the corresponding regions of the major capsid protein gene of Herpesvirus Saimiri (ORF25) and Epstein Barr virus (BcLF1), respectively, both members of the gammaherpesvirus family. This finding is an important breakthrough, because a …

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So You Want To Be A Soil Microbiologist?, Mark S. Coyne Jan 1996

So You Want To Be A Soil Microbiologist?, Mark S. Coyne

Plant and Soil Sciences Faculty Book Gallery

A tongue-in-cheek look at soil microbiology.

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Communities Of Cloacal Bacteria In Tree Swallow Families, Michael P. Lombardo, Patrick A. Thorpe, R. Cichewicz, M. Henshaw, C. Millard, C. Steen, T. K. Zeller Jan 1996

Communities Of Cloacal Bacteria In Tree Swallow Families, Michael P. Lombardo, Patrick A. Thorpe, R. Cichewicz, M. Henshaw, C. Millard, C. Steen, T. K. Zeller

Peer Reviewed Publications

Our aim in this study was to survey the communities of bacteria found in the cloacae of adult and nestling Tree Swallows (Tachycineta bicolor), determine if there were familial patterns of prevalence, and determine if there were relationships between bacteria loads and nestling size when 12 days old and fledging success.

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Membrane Topology Of The Colicin A Pore-Forming Domain Analyzed By Disulfide Bond Engineering, Denis Duche, Jacques Izard, Juan M. Gonzalez-Manas, Michael W. Parker, Marcel Crest, Daniel Baty Jan 1996

Membrane Topology Of The Colicin A Pore-Forming Domain Analyzed By Disulfide Bond Engineering, Denis Duche, Jacques Izard, Juan M. Gonzalez-Manas, Michael W. Parker, Marcel Crest, Daniel Baty

Department of Food Science and Technology: Faculty Publications

Four colicin A double-cysteine mutants possessing a disulfide bond in their pore-forming domain were constructed to study the translocation and the pore formation of colicin A. The disulfide bonds connected a-helices 1 and 2, 2 and 10, 3 and 9, or 3 and 10 of the poreforming domain. The disulfide bonds did not prevent the colicin A translocation through the Escherichia coli envelope. However, the mutated colicins were able to exert their in vivo channel activity only after reduction of their disulfide bonds. In vitro studies with brominated phospholipid vesicles and planar lipid bilayers revealed that the disulfide bond that …

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Physical Linkage Of The Vibrio Cholerae Mannose-Sensitive Hemagglutinin Secretory And Structural Subunit Gene Loci: Identification Of The Mshg Coding Sequence., Jane W. Marsh, Daxi Sun, Ronald K. Taylor Jan 1996

Physical Linkage Of The Vibrio Cholerae Mannose-Sensitive Hemagglutinin Secretory And Structural Subunit Gene Loci: Identification Of The Mshg Coding Sequence., Jane W. Marsh, Daxi Sun, Ronald K. Taylor

Dartmouth Scholarship

Vibrio cholerae O1 expresses a variety of cell surface factors which mediate bacterial adherence and colonization at the intestinal epithelium. The mannose-sensitive hemagglutinin (MSHA), a type IV pilus, is a potential attachment factor of the V. cholerae El Tor biotype. We describe a TnphoA mutant that is defective in its ability to hemagglutinate mouse erythrocytes. The TnphoA insertion maps to a recently identified genetic locus that encodes products that are predicted to be essential for assembly and export of the MSHA pilus. Insertional disruption at this locus in a mshA-phoA reporter strain provides evidence for a role of this locus …

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Amino Acid Substitutions In Membrane-Spanning Domains Of Hol1, A Member Of The Major Facilitator Superfamily Of Transporters, Confer Nonselective Cation Uptake In Saccharomyces Cerevisiae, Matthew B. Wright, Elizabeth A. Howell, Richard F. Gaber Jan 1996

Amino Acid Substitutions In Membrane-Spanning Domains Of Hol1, A Member Of The Major Facilitator Superfamily Of Transporters, Confer Nonselective Cation Uptake In Saccharomyces Cerevisiae, Matthew B. Wright, Elizabeth A. Howell, Richard F. Gaber

University Faculty Publications and Creative Works

Let A(formula presented) -dimensional compactum and (formula presented)Mn a map into a piecewise linear (formula presented). The main result of this paper asserts that if X is locally (formula presented)-connected and/is (formula presented)-connected, th

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V, D And J Gene Rearrangements On The Unexpressed Igh Allele In Rabbit B Cells, Chainarong Tunyaplin Jan 1996

V, D And J Gene Rearrangements On The Unexpressed Igh Allele In Rabbit B Cells, Chainarong Tunyaplin

Dissertations

No abstract provided.

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Nonsense Codon-Mediated Degradation Of Immunoglobulin Heavy-Chain [Mu] Messenger Rna In B Cells, Tianhong Li Jan 1996

Nonsense Codon-Mediated Degradation Of Immunoglobulin Heavy-Chain [Mu] Messenger Rna In B Cells, Tianhong Li

Dissertations

No abstract provided.

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