Sequence relationships of type D retroviruses which cause simian acquired immunodeficiency syndrome.
Sequence relationships of type D retroviruses which cause simian acquired immunodeficiency syndrome.
复制标题
引起猴获得性免疫缺陷综合征的 D 型逆转录病毒的序列关系。
DOI:
10.1016/0042-6822(87)90274-1
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发表时间:
1987
期刊:
影响因子:
3.7
通讯作者:
Luciw,PA
中科院分区:
文献类型:
--
作者:
Thayer,RM;Power,MD;Bryant,ML;Gardner,MB;Barr,PJ;Luciw,PA
Simian acquired immunodeficiency syndrome (SAIDS) in macaque monkeys is caused by type D retroviruses; three independent virus isolates are identified as SRV-1 (SAIDS retrovirus-serotype 1), SRV-2, and MPMV (Mason-Pfizer monkey virus). Virions from these three isolates have serologically related core antigens, but distinct surface proteins. Also, SRV-2 is unique since it apparently induces retroperitoneal fibromatosis in addition to SAIDS. The complete DNA sequence of molecularly cloned SRV-2 is presented and compared to the sequences of SRV-1 and MPMV and to the sewuences of other retroviruses and retroviral-related elements in the genomes of eucaryotic cells. SRV-1 and MPMV show fewer than 6% differences in predicted amino acid sequences encodinggag, prt, pol, and the C-terminalenvdomain; SRV-2 displays about 15–18% differences in these regions when aligned with SRV-1 or MPMV. Greater variation of predicted amino acid sequences is noted in the externally located N-terminalenvdomains; SRV-1 and MPMV have 83% homology whereas SRV-2 has 58% homology with either SRV-1 or MPMV. Nucleotide sequences of the LTRs of SRV-1 and MPMV are 88% homologous; SRV-2 shows 70% homology with the LTRs of SRV-1 and MPMV. Comparisons of the predictedpolregion amino acid sequences of these simian type D retroviruses with thepolgene of a type B retrovirus, mouse mammary tumor virus (MMTV), reveal about 50% homology. A human endogenous element related to thepolregion of MMTV shows about 25% homology of amino acids with thepolsequences of SRV-1 or SRV-2. Theprtgenes of the simian type D retroviruses are similar in size and predicted amino acid sequence with theprtgenes of MMTV and the hamster intracisternal type A particle genome. The C-terminalenvdomains of the avian type C retrovirus reticuloendotheliosis virus (REV) and the type C baboon endogenous virus (BaEV) have 60 and 85% predicted amino acid homology, respectively, with the C-terminalenvdomains of SRV-1, SRV-2, and MPMV. Within thegagandpolgenes of the simian type D retroviruses there are striking homologies with the rat IgE-binding protein gene. Sequence relatedness of these type D retroviruses with type A, type B, and type C retrovirus genomes and with cellular sequences supports the notion that recombinational events contribute to the genesis and variation of retroviruses. These DNA sequence analyses also provide a basis for considering and comparing mechanisms of immunedysfunction mediated by the simian type D retroviruses and other retroviruses..
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DOI:
--
发表时间:
1985
期刊:
The American journal of pathology
影响因子:
--
作者:
GiddensJr,WE;Tsai,CC;Morton,WR;Ochs,HD;Knitter,GH;Blakley,GA
通讯作者:
Blakley,GA
影响因子:
56.9
作者:
Daniel;N. King;Norman L. Letvin;Ronald D. Hunt;P. Sehgal;R. C. Desrosiers
通讯作者:
R. C. Desrosiers
影响因子:
11.2
作者:
H. Chopra;M. M. Mason
通讯作者:
M. M. Mason
DOI:
--
发表时间:
1981
期刊:
Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine
影响因子:
--
作者:
O. Weislow;Oscar U. Fisher;D. Twardzik;A. Hellman;A. Fowler
通讯作者:
A. Fowler
DOI:
--
发表时间:
1980
影响因子:
11.1
作者:
J. Clements;F. Pedersen;O. Narayan;W. Haseltine
通讯作者:
W. Haseltine