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Full-Text Articles in Molecular Biology
Role Of The Human Cytomegalovirus Ie2 Protein On Transcriptional Regulation Of Viral Promoters, Siabhon Michelle Harris
Role Of The Human Cytomegalovirus Ie2 Protein On Transcriptional Regulation Of Viral Promoters, Siabhon Michelle Harris
Theses and Dissertations in Biomedical Sciences
Human cytomegalovirus (HCMV) is a ubiquitous pathogen able to cause severe mortality and morbidity in immuno-compromised individuals. Successful infection by HCMV is dependent on expression of viral genes essential for replication. Immediate early (IE) gene products are the first subset of viral genes to be expressed during infection and function as key transcriptional regulators. IE2 is one the most predominantly expressed IE proteins and is essential for HCMV infection. IE2 transactivates several viral promoters, including those of the essential viral DNA polymerase (UL54) and UL112-113 gene regions. IE2 is also able to autoregulate is own expression and repress expression of …
Interdependent Regulation Of Cytomegalovirus Proteins In Complex, Lisa L. Bolin
Interdependent Regulation Of Cytomegalovirus Proteins In Complex, Lisa L. Bolin
Theses and Dissertations in Biomedical Sciences
Human cytomegalovirus (HCMV) is a ubiquitous herpesvirus that causes significant morbidity and mortality in the immune compromised. Using the mutine cytomegalovirus (MCMV) model, we identified two genes, M140 and M141, which are determinants of macrophage tropism. Monocytes/macrophages are a critical cell type for cytomegalovirus (CMV) pathogenesis as sites of viral latency and by supporting viral replication and disseminating virus throughout the body. We previously found that the localization of the M140/M141 gene products (pM140/pM141) is different when the proteins are co-expressed as compared to their individual expression. When the proteins are individually expressed pM141 localizes diffusely throughout the cytoplasm and, …
Interactions Among Murine Cytomegalovirus Us22 Family Gene Products That Influence Viral Pathogenesis, Zaruhi Karabekian
Interactions Among Murine Cytomegalovirus Us22 Family Gene Products That Influence Viral Pathogenesis, Zaruhi Karabekian
Theses and Dissertations in Biomedical Sciences
Cytomegalovirus (CMV) is a complex, ubiquitous herpesvirus that is characterized by acute, chronic, and latent infections. Monocytes-macrophages are the key target cell type involved in pathogenesis, which is most effectively studied using the murine model of CMV infection. Previously three murine CMV (MCMV) genes (M139, M140, and M141) were identified to regulate viral expression in cultured macrophages and in mice. These genes are members of the US22 gene family with respect to HCMV homology. There is no function assigned to the proteins encoded by these genes. However, deletion of M139, M140, and M141 significantly curtails growth of MCMV in macrophages …
Characterization Of The Human Cytomegalovirus Ul75 Late Gene Promoter, Bernard J. P. Mcwatters
Characterization Of The Human Cytomegalovirus Ul75 Late Gene Promoter, Bernard J. P. Mcwatters
Theses and Dissertations in Biomedical Sciences
Gene expression during productive infection by the human cytomegalovirus (HCMV) occurs in an ordered and sequential manner, beginning with immediate early (IE), then early (E) and finally late (L) gene expression. Significant work has addressed the regulation of IE and E gene expression while relatively little work has addressed the control of late gene expression. In order to further address HCMV late gene expression, the promoter of the HCMV UL75 (glycoprotein H, gH) late gene was characterized. The data obtained in this study were combined with observations made in two other studies that have addressed HCMV late gene expression to …