Browsing Microbiology and Immunology by Title
Now showing items 107-126 of 268
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Hox-gene expression as a biomarker for igf-1r therapeutics
(2008-09-25)This invention provides methods for treating or preventing the onset of a tumor in a subject, wherein the tumor is determined to overexpress a Hox gene, including administering to the subject a therapeutically or ... -
The HTLV-1-encoded protein HBZ directly inhibits the acetyl transferase activity of p300/CBP
(2012-07)The homologous cellular coactivators p300 and CBP contain intrinsic lysine acetyl transferase (termed HAT) activity. This activity is responsible for acetylation of several sites on the histones as well as modification of ... -
Human T-Cell Leukemia Virus Type 1 (HTLV-1) bZIP Protein Interacts with the Cellular Transcription Factor CREB To Inhibit HTLV-1 Transcription
(East Carolina University, 2007-02)The complex human T-cell leukemia virus type 1 (HTLV-1) retrovirus encodes several proteins that are unique to the virus within its 3 -end region. Among them, the viral transactivator Tax and posttranscriptional regulator ... -
Human T-cell Leukemia Virus Type 1 Basic Leucine Zipper Factor (HBZ) Interacts and Inhibits the Acetyltransferase Activity of Multiple Cellular Coactivator Families to Deregulate Transcription
(East Carolina University, 1/13/16)Of the 20 million individuals infected worldwide with the complex retrovirus, Human T-cell Leukemia Virus Type 1, 5% will develop an incurable and fatal form of leukemia known as adult T-cell leukemia (ATL). During the ... -
Human T-Cell Leukemia Virus Type I Basic Leucine Zipper Factor (HBZ) Modulates Cellular DNA Damage Repair and Antioxidant Responses to Promote Host Cell Survival and Leukemogenesis
(East Carolina University, 2018-04-19)Approximately twenty million people worldwide are infected with Human T-cell Leukemia Virus type 1 (HTLV-1). HTLV-1 establishes a life-long, chronic infection which can result in the development of severe HTLV-1 associated ... -
Identification and Characterization of alcR, a Gene Encoding an AraC-Like Regulator of Alcaligin Siderophore Biosynthesis and Transport in Bordetella pertussis and Bordetella bronchiseptica
(East Carolina University, 1998-02)A Bordetella bronchiseptica iron transport mutant was isolated following an enrichment procedure based on streptonigrin resistance. The mutant displayed a growth defect on iron-restricted medium containing ferric alcaligin ... -
Identification and characterization of iron-regulated Bordetella pertussis alcaligin siderophore biosynthesis genes.
(East Carolina University, 1996-08)Bordetella bronchiseptica mutants BRM1, BRM6, and BRM9 fail to produce the native dihydroxamate siderophore alcaligin. A 4.5-kb BamHI-SmaI Bordetella pertussis genomic DNA fragment carried multiple genes required to restore ... -
Identification of a circular intermediate in the transfer and transposition of Tn4555, a mobilizable transposon from Bacteroides spp.
(East Carolina University, 1993-05)Transmissible cefoxitin (FX) resistance in Bacteroides vulgatus CLA341 was associated with the 12.5-kb, mobilizable transposon, Tn4555, which encoded the 13-lactamase gene cfxA. Transfer occurred by a conjugation-like ... -
The Influence of Iron on Pseudomonas aeruginosa Physiology: A regulatory link between iron and quorum sensing
(East Carolina University, 2008-06-06)In iron-replete environments, the Pseudomonas aeruginosa Fur (ferric uptake regulator) protein represses expression of two small regulatory RNAs encoded by prrF1 and prrF2. Here we describe the effects of iron and PrrF ... -
Inhibition of Cdk2 activity decreases Aurora-A kinase centrosomal localization and prevents centrosome amplification in breast cancer cells
(2013-05)Centrosome amplification plays a key role in the origin of chromosomal instability (CIN) during cancer development and progression. In this study, MCF-7 breast cancer cell lines harboring abrogated p53 function (vMCF-7DNp53) ... -
Inhibition of Cdk2 kinase activity selectively targets the CD44/CD24 stem-like subpopulation and restores chemosensitivity of SUM149PT triple-negative breast cancer cells
(2014-09)Inflammatory breast cancer (IBC) is an angioinvasive and most aggressive type of advanced breast cancer characterized by rapid proliferation, chemoresistance, early metastatic development and poor prognosis. IBC tumors ... -
Inhibition of histone acetyltransferase (HAT) activity by HBZ extends beyond the p300/CBP HAT family
(2014)We previously reported that HTLV-1 basic leucine zipper factor (HBZ) interacts with the cellular coactivator p300 in cells derived from ATL patients. We further determined that HBZ directly binds to the histone acetyltransferase ... -
Inhibition of Quorum Sensing by a Pseudomonas aeruginosa dksA Homologue
(East Carolina University, 2001-03)The Pseudomonas aeruginosa las (lasR-lasI) and rhl (rhlR-rhlI) quorum-sensing systems regulate the expression of several virulence factors, including elastase and rhamnolipid. P. aeruginosa strain PR1-E4 is a lasR deletion ... -
Initial Characterization of the FlgE Hook High Molecular Weight Complex of
(2014)The spirochete periplasmic flagellum has many unique attributes. One unusual characteristic is the flagellar hook. This structure serves as a universal joint coupling rotation of the membrane-bound motor to the flagellar ... -
Insertional activation of cepA leads to high-level beta-lactamase expression in Bacteroides fragilis clinical isolates.
(East Carolina University, 1994-07)Bacteroides fragilis is an important opportunistic pathogen of humans and is resistant to many drugs commonly used to treat anaerobic infections, including P-lactams. A strain set comprised of B. fragilis isolates producing ... -
Insulin/IGF1-PI3K-dependent nucleolar localization of a glycolytic enzyme – phosphoglycerate mutase 2, is necessary for proper structure of nucleolus and RNA synthesis
(2015-07)Phosphoglycerate mutase (PGAM), a conserved, glycolytic enzyme has been found in nucleoli of cancer cells. Here, we present evidence that accumulation of PGAM in the nucleolus is a universal phenomenon concerning not only ...