Human cyclophilin has a significantly higher affinity for HIV-1 recombinant p55 than p24

被引:16
作者
Bristow, R
Byrne, J
Squirell, J
Trencher, H
Carter, T
Rodgers, B
Saman, E
Duncan, J
机构
[1] Murex Biotech Ltd, Dartford, Kent, England
[2] Innogent NV, B-9052 Ghent, Belgium
来源
JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES AND HUMAN RETROVIROLOGY | 1999年 / 20卷 / 04期
关键词
HIV; gag; cyclophilin; p24; ELISA;
D O I
10.1097/00042560-199904010-00002
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
The ability of cyclophilin to bind a panel of recombinant HIV-gag proteins was assessed using sensitive, quantitative, sandwich enzyme-linked immunosorbant assays (ELISAs). Significantly higher binding to cyclophilin was observed when recombinants contained at least 12 carboxy-terminal amino acids of p17 in addition to p24 sequences. These results indicate that the carboxy-terminus of p17 is important for optimal binding of cyclophilin to p24 and support the theory that cyclophilin acts on the uncleaved HIV-1 gag (p17-p24) precursor.
引用
收藏
页码:334 / 336
页数:3
相关论文
共 8 条
[1]   Cyclophilin A is required for the replication of group M human immunodeficiency virus type 1 (HIV-1) and simian immunodeficiency virus SIV(CPZ)GAB but not group O HIV-1 or other primate immunodeficiency viruses [J].
Braaten, D ;
Franke, EK ;
Luban, J .
JOURNAL OF VIROLOGY, 1996, 70 (07) :4220-4227
[2]   SPECIFIC INCORPORATION OF CYCLOPHILIN-A INTO HIV-1 VIRIONS [J].
FRANKE, EK ;
YUAN, HEH ;
LUBAN, J .
NATURE, 1994, 372 (6504) :359-362
[3]   Crystal structure of human cyclophilin A bound to the amino-terminal domain of HIV-1 capsid [J].
Gamble, TR ;
Vajdos, FF ;
Yoo, SH ;
Worthylake, DK ;
Houseweart, M ;
Sundquist, WI ;
Hill, CP .
CELL, 1996, 87 (07) :1285-1294
[4]   N-terminal extension of human immunodeficiency virus capsid protein converts the in vitro assembly phenotype from tubular to spherical particles [J].
Gross, I ;
Hohenberg, H ;
Huckhagel, C ;
Kräusslich, HG .
JOURNAL OF VIROLOGY, 1998, 72 (06) :4798-4810
[5]   HUMAN-IMMUNODEFICIENCY-VIRUS TYPE-1 GAG PROTEIN BINDS TO CYCLOPHILIN-A AND CYCLOPHILIN-B [J].
LUBAN, J ;
BOSSOLT, KL ;
FRANKE, EK ;
KALPANA, GV ;
GOFF, SP .
CELL, 1993, 73 (06) :1067-1078
[6]  
SPENCE RP, 1989, J GEN VIROL, V70, P2848
[7]   FUNCTIONAL ASSOCIATION OF CYCLOPHILIN-A WITH HIV-1 VIRIONS [J].
THALI, M ;
BUKOVSKY, A ;
KONDO, E ;
ROSENWIRTH, B ;
WALSH, CT ;
SODROSKI, J ;
GOTTLINGER, HG .
NATURE, 1994, 372 (6504) :363-365
[8]   Conformational selectivity of HIV-1 protease cleavage of X-Pro peptide bonds and its implications [J].
Vance, JE ;
LeBlanc, DA ;
Wingfield, P ;
London, RE .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1997, 272 (25) :15603-15606