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Cytopathic Mechanisms of HIV-1

Joshua M Costin

Author Affiliations

Biotechnology Research Group, Department of Biology, Florida Gulf Coast University, 10501 FGCU Blvd. S., Fort Myers, Fl, 33965, USA

Virology Journal 2007, 4:100  doi:10.1186/1743-422X-4-100

Published: 18 October 2007


The human immunodeficiency virus type 1 (HIV-1) has been intensely investigated since its discovery in 1983 as the cause of acquired immune deficiency syndrome (AIDS). With relatively few proteins made by the virus, it is able to accomplish many tasks, with each protein serving multiple functions. The Envelope glycoprotein, composed of the two noncovalently linked subunits, SU (surface glycoprotein) and TM (transmembrane glycoprotein) is largely responsible for host cell recognition and entry respectively. While the roles of the N-terminal residues of TM is well established as a fusion pore and anchor for Env into cell membranes, the role of the C-terminus of the protein is not well understood and is fiercely debated. This review gathers information on TM in an attempt to shed some light on the functional regions of this protein.