Importance of the intracytoplasmic domain of the simian immunodeficiency virus (SIV) envelope glycoprotein for pathogenesis.
Importance of the intracytoplasmic domain of the simian immunodeficiency virus (SIV) envelope glycoprotein for pathogenesis.
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猿猴免疫缺陷病毒(SIV)包膜糖蛋白的胞浆内结构域对于发病机制的重要性。
DOI:
10.1006/viro.1998.9467
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发表时间:
1998
期刊:
影响因子:
3.7
通讯作者:
Marthas,ML
中科院分区:
文献类型:
--
作者:
Luciw,PA;Shaw,KE;Shacklett,BL;Marthas,ML
SIVmac1A11 and SIVmac239 are nonpathogenic and pathogenic molecular clones in rhesus macaques, respectively. Although these viruses exhibit ∼98% nucleotide and amino acid sequence homology, differences are found in the length of the translation frames for several genes. SIVmac239 has a premature stop codon innef, whereas SIVmac1A11 has a premature stop codon invprand two premature stop codons in the intracytoplasmic domain of theenv-transmembrane (TM) subunit. Recombinant viruses, constructed through reciprocal exchange of large DNA restriction enzyme fragments between SIVmac1A11 and SIVmac239, were evaluated in adult rhesus macaques. Thisin vivoanalysis revealed that two or more regions of the SIVmac genome were essential for high virus load and disease progression (Marthaset al.,1993.J. Virol.67, 6047–6055). An important gap in knowledge remaining from this study was whether the premature stop codons inenv-TM of recombinant virus SIV1A11/239gag-env/1A11 (full-lengthvprandnef, two stop codons inenv-TM) reverted to coding tripletsin vivo. Here, we report that viral sequences in macaques, which succumbed to an AIDS-like disease after infection with SIV1A11/239gag-env/1A11, exhibited reversion of bothenv-TM stop codons. In addition, antibodies to the intracytoplasmic domain ofenv-TM were detected in macaques containing revertant virus and showing disease; this finding indicates that this domain of theenvglycoprotein was expressedin vivo. Thus selection for viral variants with full-lengthenv-TM demonstrated that the cytoplasmic domain of the SIVmacenvglycoprotein plays a role in viral persistence and immunodeficiency in primates.
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影响因子:
--
作者:
G. Pancino;H. Ellerbrok;M. Sitbon;P. Sonigo
通讯作者:
P. Sonigo
影响因子:
5.4
作者:
CHAKRABARTI, L;EMERMAN, M;SONIGO, P
通讯作者:
SONIGO, P
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Srinivas,SK;Srinivas,RV;Anantharamaiah,GM;Segrest,JP;Compans,RW
通讯作者:
Compans,RW
影响因子:
1.5
作者:
Venable,RM;Pastor,RW;Brooks,BR;Carson,FW
通讯作者:
Carson,FW
影响因子:
5.4
作者:
Ishikawa, H;Sasaki, M;Koga, Y
通讯作者:
Koga, Y