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Full-Text Articles in Life Sciences

Vaccinia Virus Flll Mediated Expedition Of Tanapoxvirus Replication In Cell Culture, Yih Wen Goh Apr 2014

Vaccinia Virus Flll Mediated Expedition Of Tanapoxvirus Replication In Cell Culture, Yih Wen Goh

Masters Theses

Tanapoxvirus (TPV) produces large but slow-forming plaques as opposed to vaccinia virus (VACV) that forms similar large plaques but more rapidly. A number of genes were identified in VACV, inclucding FllL, A33R, A34R and A36R that contribute to the regulation of virus release and dissemination, and are particularly responsible for the induction of actin tails. Among them, TPV lacks homologs of the FllL and A36R genes. F11Lmediated inhibition of RhoA-mDia signaling was shown to enhance the microtubules dynamics and modulates the cortical actin that assisted in the release of progeny virus from infected cells. To understand the possible effects of …


Studies On Enzyme Functional Evolution In The Sabath Multigene Family Using Phylogenetic And Biochemical Approaches, Ruiqi Huang Apr 2012

Studies On Enzyme Functional Evolution In The Sabath Multigene Family Using Phylogenetic And Biochemical Approaches, Ruiqi Huang

Masters Theses

Gene duplication is believed to be the major source for providing genetic materials for the innovation and diversification of protein functions; natural selection and/or neutral drift then works on these genetic materials to guide their evolutionary directions. Here, I used the salicylic acid/benzoic acid/theobromine (SABATH) multigene family to study how natural selection acted on duplicated genes to prompt functional diversification. Members in this family methylate plant secondary metabolites by transferring the methyl group from S-adenosyl-L-methionine (SAM) to the carboxyl group or ring nitrogen of the substrates. In the Apocynaceae and Solanaceae lineage of this family, I documented three putative gene …


Inhibition Of Cytochrome P-450 But Not Neutrophil Depletion Prevents The Pulmonary Toxicity Associated With 1-Nitronaphthalene, Steven Michael Green Aug 1993

Inhibition Of Cytochrome P-450 But Not Neutrophil Depletion Prevents The Pulmonary Toxicity Associated With 1-Nitronaphthalene, Steven Michael Green

Masters Theses

1-Nitronaphthalene (1-NN) is an environmental contaminant that has been shown to cause pulmonary toxicity in rodents. To examine the contribution of cytochrome P-450 to the metabolism and subsequent toxicity of 1-NN, rats were pretreated with chloramphenicol, a suicide substrate of P-450. To determine if inflammation plays a role in 1-NN toxicity, rats were pretreated with cyclophosphamide to deplete neutrophils. In both experiments, morphological analysis of the lower airways was performed with light and electron microscopy. A second group of animals was examined for biochemical indicators of inflammation and cell damage. The parameters examined were cell content, protein content and lactate …