> *Dissertation Defense Announcement > To: The George Mason University Community* > > *Candidate: Subashini R. Iyer > Program: PhD Biosciences > * > *Date: Wednesday September 21, 2011 > Time: 1:30 p.m. > Place: George Mason University > ** Occoquan Bldg., Room 110-A > Prince William campus <http://www.gmu.edu/resources/visitors/findex.html> > > *Dissertation Chair: Dr. Yuntao Wu > Committee members: Dr. Geraldine Grant, Dr. Karl Fryxell, Dr. Patrick Gillevet > * > Title: **"Role of HIV-1 Preintegration Transcription in the Viral Life Cycle"* > > * > *The dissertation is on reserve in the Johnson Center Library, Fairfax campus. > The doctoral project will not be read at the meeting, but should be read in advance. > /**/ > *All members of the George Mason University community are invited to attend.* > > > *ABSTRACT: * > > > Preintegration transcription is an early process in HIV life-cycle. > However, mechanistically, this process is poorly studied and > understood. As such, the relationship between preintegration > transcription and the subsequent steps of HIV replication cycle is > unknown. My Ph.D thesis research addressees the source of > preintegration transcription and the impact of this process on viral > integration. Data from my research demonstrates that the unintegrated > linear DNA, which is the precursor for viral integration, may > constitute the major template for preintegration transcription. This > result excludes a role of the minor DNA species, such as the > 2-LTR-circles, as the likely template for preintegration > transcription. This result also suggests a possible connection between > viral preintegration transcription and subsequent DNA integration into > the human genome, since both viral processes could involve the same > DNA molecule. Indeed, further studies indicated a possible involvement > of preintegration transcription in determining the pattern and site of > HIV integration. My research thus paves the way for future > investigation of the mechanistic linkage between HIV preintegration > transcription and integration. > > ###