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Full-Text Articles in Virology

Development Of A Novel Method To Express And Purify Vaccinia Virus Early Transcription Factors A7 And D6 Using Bacteria, Omkar M. Gandbhir Jan 2017

Development Of A Novel Method To Express And Purify Vaccinia Virus Early Transcription Factors A7 And D6 Using Bacteria, Omkar M. Gandbhir

Seton Hall University Dissertations and Theses (ETDs)

The eradication of Smallpox is one of the greatest human achievements. However other poxviruses still exist infecting humans (Molluscum Contagiosum, monkeypox, and Vaccinia) or livestock (cowpox, sheeppox). Though vaccines and anti-virals exist, the side effects are serious, and viral resistance has been detected. The genome amongst poxviruses is highly conserved, early gene promoters maintain a specific critical consensus region that can be targeted for development of novel broad spectrum therapeutics. Using Vaccinia early transcription factors (VETFs) a novel method of expressing and purifying VETF A7 and D6 was developed. A7 and D6 are required for transcription of early genes recruiting …


Defining The Requirements For Early Gene Expression In Bacteriophage Hk639, Amanda L. Seaton Aug 2013

Defining The Requirements For Early Gene Expression In Bacteriophage Hk639, Amanda L. Seaton

Masters Theses & Specialist Projects

Lambdoid phages suppress transcription termination to fully express their genes. Antitermination of early gene expression in most lambdoid phages is mediated by an interaction between the N protein and a number of host-encoded factors. Bacteriophage HK022 does not rely on a protein for antitermination. To promote full expression of early phage genes, the transcripts of the HK022 put sites interact directly with RNA polymerase to convert it to a termination resistant form. Bacteriophage HK639 also uses RNA-mediated antitermination. However, it only possesses a single put-like element in its left operon. Because most lambdoid phages, including HK022, have antiterminator elements in …