J Biol Chem. 1994 Dec 2;269(48):30073-6.

Physical interaction of the HIV-1 Nef protein with beta-COP, a component of non-clathrin-coated vesicles essential for membrane traffic.

Benichou S, Bomsel M, Bodéus M, Durand H, Douté M, Letourneur F, Camonis J, Benarous R.

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Unité 332, INSERM, Paris, France.

Abstract

Nef is a 27-kDa myristylated protein conserved in most human immunodeficiency virus (HIV)-1, HIV-2, and simian immunodeficiency virus isolates. Simian immunodeficiency virus Nef is required in macaques for both high viral load and full pathological effects. Nef down-regulates the cell surface expression of CD4 by a post-translational mechanism that is not yet fully elucidated. We have used the yeast two-hybrid system to identify cellular proteins that interact with Nef. A cDNA was isolated which encodes a COOH-terminal fragment of human beta-COP, a major coat component of non-clathrin-coated vesicles. Nef and beta-COP interacted in vitro and were found to be physically associated in HIV-1-infected cells by co-immunoprecipitation. These observations suggest that beta-COP might be one of the cellular mediators of Nef function in HIV-1-infected cells.

PMID:: 7982906; [PubMed - indexed for MEDLINE]

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Cited by 40 PubMed Central articles

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Physical interaction of the HIV-1 Nef protein with beta-COP, a component of non-...
Physical interaction of the HIV-1 Nef protein with beta-COP, a component of non-clathrin-coated vesicles essential for membrane traffic.
J Biol Chem. 1994 Dec 2 ;269(48):30073-6.

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