The activity of Nef on HIV-1 infectivity

被引:65
作者
Basmaciogullari, Stephane [1 ,2 ]
Pizzato, Massimo [3 ]
机构
[1] Univ Paris 05, Sorbonne Paris Cite, Hop Necker Enfants Malad, Paris, France
[2] INSERM, U845, F-75014 Paris, France
[3] Univ Trento, Ctr Integrat Biol, Trento, Trento, Italy
来源
FRONTIERS IN MICROBIOLOGY | 2014年 / 5卷
关键词
HIV; AIDS; auxiliary proteins; Nef; retrovirus infectivity; HUMAN-IMMUNODEFICIENCY-VIRUS; CD4; DOWN-REGULATION; CELL-SURFACE CD4; OPTIMAL VIRAL INFECTIVITY; RECEPTOR ZETA-CHAIN; 1-INFECTED T-CELLS; TYPE-1; NEF; CYTOPLASMIC DOMAIN; REVERSE TRANSCRIPTION; ENV INCORPORATION;
D O I
10.3389/fmicb.2014.00232
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The replication and pathogenicity of lentiviruses is crucially modulated by "auxiliary proteins" which are expressed in addition to the canonical retroviral ORFs gag, pot, and env. Strategies to inhibit the activity of such proteins are often sought and proposed as possible additions to increase efficacy of the traditional antiretroviral therapy. This requires the acquisition of an in-depth knowledge of the molecular mechanisms underlying their function. The Nef auxiliary protein is expressed uniquely by primate lentiviruses and plays an important role in virus replication in vivo and in the onset of AIDS. Among its several activities Nef enhances the intrinsic infectivity of progeny virions through a mechanism which remains today enigmatic. Here we review the current knowledge surrounding such activity and we discuss its possible role in HIV biology.
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页数:12
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共 166 条
[1]   A hydrophobic binding surface on the human immunodeficiency virus type 1 Nef core is critical for association with p21-activated kinase 2 [J].
Agopian, K ;
Wei, BL ;
Garcia, JV ;
Gabuzda, D .
JOURNAL OF VIROLOGY, 2006, 80 (06) :3050-3061
[2]   NEF PROTEIN OF HIV-1 IS A TRANSCRIPTIONAL REPRESSOR OF HIV-1 LTR [J].
AHMAD, N ;
VENKATESAN, S .
SCIENCE, 1988, 241 (4872) :1481-1485
[3]   NEF INDUCES CD4 ENDOCYTOSIS - REQUIREMENT FOR A CRITICAL DILEUCINE MOTIF IN THE MEMBRANE-PROXIMAL CD4 CYTOPLASMIC DOMAIN [J].
AIKEN, C ;
KONNER, J ;
LANDAU, NR ;
LENBURG, ME ;
TRONO, D .
CELL, 1994, 76 (05) :853-864
[5]   NEF STIMULATES HUMAN-IMMUNODEFICIENCY-VIRUS TYPE-1 PROVIRAL DNA-SYNTHESIS [J].
AIKEN, C ;
TRONO, D .
JOURNAL OF VIROLOGY, 1995, 69 (08) :5048-5056
[6]   A role for natural simian immunodeficiency virus and human immunodeficiency virus type 1 Nef alleles in lymphocyte activation [J].
Alexander, L ;
Du, ZJ ;
Rosenzweig, M ;
Jung, JU ;
Desrosiers, RC .
JOURNAL OF VIROLOGY, 1997, 71 (08) :6094-6099
[7]   Enhanced CD4 down-modulation by late stage HIV-1 nef alleles is associated with increased env incorporation and viral replication [J].
Argañaraz, ER ;
Schindler, M ;
Kirchhoff, F ;
Cortes, MJ ;
Lama, J .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2003, 278 (36) :33912-33919
[8]   The crystal structure of HIV-1 Nef protein bound to the Fyn kinase SH3 domain suggests a role for this complex in altered T cell receptor signaling [J].
Arold, S ;
Franken, P ;
Strub, MP ;
Hoh, F ;
Benichou, S ;
Benarous, R ;
Dumas, C .
STRUCTURE, 1997, 5 (10) :1361-1372
[10]   THE HIV-1 NEF PROTEIN DOES NOT HAVE GUANINE-NUCLEOTIDE BINDING, GTPASE, OR AUTOPHOSPHORYLATING ACTIVITIES [J].
BACKER, JM ;
MENDOLA, CE ;
FAIRHURST, JL ;
KOVESDI, I .
AIDS RESEARCH AND HUMAN RETROVIRUSES, 1991, 7 (12) :1015-1020