Cryoelectron microscopic examination of human immunodeficiency virus type 1 virions with mutations in the cyclophilin A binding loop

被引:22
作者
Kong, LB
An, DS
Ackerson, B
Canon, J
Rey, O
Chen, ISY
Krogstad, P
Stewart, PL
机构
[1] Univ Calif Los Angeles, Sch Med, Dept Mol & Med Pharmacol, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, Sch Med, Crump Inst Biol Imaging, Los Angeles, CA 90095 USA
[3] Univ Calif Los Angeles, Sch Med, Dept Microbiol & Immunol, Los Angeles, CA 90095 USA
[4] Univ Calif Los Angeles, Sch Med, Dept Med, Los Angeles, CA 90095 USA
[5] Univ Calif Los Angeles, Sch Med, Dept Pediat, Los Angeles, CA 90095 USA
关键词
D O I
10.1128/JVI.72.5.4403-4407.1998
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The human immunodeficiency virus type 1 capsid protein contains a conserved P217X4PX2PX5P231 motif. Mutation at Pro-222 decreases virion incorporation of cyclophilin A, while mutation at Pro-231 abolishes infectivity. Although viral RNA incorporation and protease cleavage of the Gag precursor were not affected by these mutations, cryoelectron microscopy revealed a loss of virion maturation in P231A particles.
引用
收藏
页码:4403 / 4407
页数:5
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