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Articles 1 - 5 of 5
Full-Text Articles in Molecular Genetics
Role Of Egr-1 Gene Expression In B Cell Receptor-Induced Apoptosis In An Immature B Cell Lymphoma, Subramanian Muthukkumar, Seong-Su Han, Sumathi Muthukkumar, Vivek M. Rangnekar, Subbarao Bondada
Role Of Egr-1 Gene Expression In B Cell Receptor-Induced Apoptosis In An Immature B Cell Lymphoma, Subramanian Muthukkumar, Seong-Su Han, Sumathi Muthukkumar, Vivek M. Rangnekar, Subbarao Bondada
Microbiology, Immunology, and Molecular Genetics Faculty Publications
Ligation of B cell receptor (BCR) on BKS-2, an immature B cell lymphoma by anti-IgM antibodies (Ab) caused apoptosis. Here we report that signaling through B cell receptor in wild type BKS-2 cells down-regulated the expression of Egr-1, a zinc finger-containing transcription factor. A reduction in the level ofEgr-1 mRNA could be demonstrated as early as 30 min after the ligation of BCR on BKS-2 cells. Immunocytochemical and Western blot analysis revealed that the expression of EGR-1 protein was also inhibited by anti-IgM treatment. Antisense oligonucleotides to Egr-1 caused growth inhibition and apoptosis in BKS-2 cells, suggesting that …
Detection Of Hybridization Events Between The Coyote, Canis Latrans, And The Domestic Dog, Canis Familiaris, Using Two Polymorphic Microsatellite Loci And Cranial Morphometric Analysis, John Jobe Cox
Morehead State Theses and Dissertations
A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by John Jobe Cox on August 26, 1997.
Identification Of A Gal/Galnac Lectin In The Protozoan Hartmannella Vermiformis As A Potential Receptor For Attachment And Invasion By The Legionnaires' Disease Bacterium, Chandrasekar Venkataraman, Bradley J. Haack, Subbarao Bondada, Yousef Abu Kwaik
Identification Of A Gal/Galnac Lectin In The Protozoan Hartmannella Vermiformis As A Potential Receptor For Attachment And Invasion By The Legionnaires' Disease Bacterium, Chandrasekar Venkataraman, Bradley J. Haack, Subbarao Bondada, Yousef Abu Kwaik
Microbiology, Immunology, and Molecular Genetics Faculty Publications
The Legionnaire's disease bacterium, Legionella pneumophila, is a facultative intracellular pathogen which invades and replicates within two evolutionarily distant hosts, free-living protozoa and mammalian cells. Invasion and intracellular replication within protozoa are thought to be major factors in the transmission of Legionnaire's disease. Although attachment and invasion of human macrophages by L. pneumophila is mediated in part by the complement receptors CR1 and CR3, the protozoan receptor involved in bacterial attachment and invasion has not been identified. To define the molecular events involved in invasion of protozoa by L. pneumophila, we examined the role of protein tyrosine phosphorylation …
Genomic Diversity In Staphylococcus Aureus, Bret Max Barton
Genomic Diversity In Staphylococcus Aureus, Bret Max Barton
Loma Linda University Electronic Theses, Dissertations & Projects
Staphylococcus aureus chromosomal DNA from 125 methicillin-resistant and 10 methicillin-sensitive clinical isolates was digested with rare-cutting restriction endonucleases and subjected to pulsed-field gel electrophoresis (PFGE). Thirty-nine distinct genomic macrorestriction patterns (GPs) were identified using SmaI; 29 of these patterns are from methicillin-resistant S. aureus (MRSA).
A dendrogram showing percent similarity among the patterns was constructed which revealed the considerable genomic diversity of the collection even though the isolates had been obtained during outbreaks. The majority of the MRSA formed one broad group with two outbreak subclasses. However, 8 of the 29 MRSA GPs (28%) were diverse.
Digestion with Csp …
Study Of The Hiv-1 Gene Regulatory Proteins Tat And Rev By The Two-Hybrid System In Yeast, David Allen Elkins
Study Of The Hiv-1 Gene Regulatory Proteins Tat And Rev By The Two-Hybrid System In Yeast, David Allen Elkins
Loma Linda University Electronic Theses, Dissertations & Projects
Tat and Rev, small proteins encoded by the Human Immunodeficiency Virus type 1 (HIV-1), regulate its pattern of gene expression within infected cells. Tat increases transcription from the integrated pro virus by approximately a thousand-fold; Rev effects a shift in the pattern of splicing of the viral mRNA. Both are likely to interact with cellular proteins in executing their respective functions. Tat has additional activities (including neurotoxicity and inhibition of lymphocyte activation) which may be extraneous to its viral functions.
In order to identify cellular proteins interacting with Tat and Rev, the genes for both were cloned into plasmid vectors …