Abstract
Vpu is a small membrane protein encoded by HIV-1 and some SIV isolates. The protein is best known for its ability to degrade CD4 and to enhance the release of progeny virions from infected cells. However, Vpu also promotes host-cell apoptosis by deregulating the NFκB signaling pathway and it assembles into cation-conducting membrane pores. This review summarizes our current understanding of these various functions of Vpu with particular emphasis on recent progress in the Vpu field. This article is part of a Special Issue entitled: Viral Membrane Proteins - Channels for Cellular Networking.
Keywords:
BST-2; CD4; HIV-1; Ion channel; Tetherin; Vpu.
© 2013.
Publication types
-
Research Support, N.I.H., Intramural
-
Review
MeSH terms
-
Antigens, CD / physiology
-
Apoptosis
-
CD4 Antigens / metabolism
-
GPI-Linked Proteins / physiology
-
Human Immunodeficiency Virus Proteins / chemistry
-
Human Immunodeficiency Virus Proteins / physiology*
-
Humans
-
NF-kappa B / physiology
-
Signal Transduction
-
Viral Regulatory and Accessory Proteins / chemistry
-
Viral Regulatory and Accessory Proteins / physiology*
-
Virion / physiology
-
Virus Attachment
Substances
-
Antigens, CD
-
BST2 protein, human
-
CD4 Antigens
-
GPI-Linked Proteins
-
Human Immunodeficiency Virus Proteins
-
NF-kappa B
-
Viral Regulatory and Accessory Proteins
-
vpu protein, Human immunodeficiency virus 1