Identification of a novel protein 3a from severe acute respiratory syndrome coronavirus.

Identification of a novel protein 3a from severe acute respiratory syndrome coronavirus.
复制标题

DOI:
10.1016/j.febslet.2004.03.086
复制
发表时间:
2004-05-07
期刊:
影响因子:
3.5
通讯作者:
Lee FJ
Lee FJ
中科院分区:
生物学3区
文献类型:
--
作者:
Yu CJ;Chen YC;Hsiao CH;Kuo TC;Chang SC;Lu CY;Wei WC;Lee CH;Huang LM;Chang MF;Ho HN;Lee FJ

文献摘要

参考文献

被引文献

相似文献

严重急性呼吸综合征冠状病毒(SARS-CoV)基因组的开放阅读框3编码一种预测的蛋白质3a,由274个氨基酸组成,与任何已知蛋白质都没有任何显著的相似性。我们通过使用对应于推定蛋白质的氨基酸261-274的合成肽(P2)来产生针对SARS蛋白3a的特异性抗体。抗P2抗体和SARS患者血清均能特异性检测大肠杆菌和Vero E6细胞表达的重组SARS蛋白3a。SARS病毒感染Vero E6细胞后8-12 h检测到SARS蛋白3a的表达,并在24 h后达到较高水平。蛋白3a还在SARS冠状病毒感染患者的肺标本的肺泡衬里肺细胞和一些肺泡内细胞中检测到。在Vero E6细胞中表达的重组蛋白3a和在SARS-CoV感染细胞中表达的蛋白3a以细小的点状图案分布在细胞质中,在高尔基体中部分集中染色。我们的研究表明,SARS-CoV确实表达了一种新的蛋白3a,这种蛋白只存在于SARS-CoV中,而不存在于其他已知的CoV中。
The open reading frame 3 of the severe acute respiratory syndrome coronavirus (SARS‐CoV) genome encodes a predicted protein 3a, consisting of 274 amino acids, that lacks any significant similarities to any known protein. We generated specific antibodies against SARS protein 3a by using a synthetic peptide (P2) corresponding to amino acids 261–274 of the putative protein. Anti‐P2 antibodies and the sera from SARS patients could specifically detect the recombinant SARS protein 3a expressed in Escherichia coli and in Vero E6 cells. Expression of SARS protein 3a was detected at 8–12 h after infection and reached a higher level after ∼24 h in SARS‐CoV‐infected Vero E6 cells. Protein 3a was also detected in the alveolar lining pneumocytes and some intra‐alveolar cells of a SARS‐CoV‐infected patient's lung specimen. Recombinant protein 3a expressed in Vero E6 cells and protein 3a in the SARS‐CoV‐infected cells was distributed over the cytoplasm in a fine punctate pattern with partly concentrated staining in the Golgi apparatus. Our study demonstrates that SARS‐CoV indeed expresses a novel protein 3a, which is present only in SARS‐CoV and not in other known CoVs.
DOI: 10.1016/s0140-6736(03)13967-0
发表时间: 2003-07-26
期刊: Lancet (London, England)
影响因子: --
作者:
Kuiken T;Fouchier RA;Schutten M;Rimmelzwaan GF;van Amerongen G;van Riel D;Laman JD;de Jong T;van Doornum G;Lim W;Ling AE;Chan PK;Tam JS;Zambon MC;Gopal R;Drosten C;van der Werf S;Escriou N;Manuguerra JC;Stöhr K;Peiris JS;Osterhaus AD
通讯作者: Osterhaus AD
DOI: 10.1128/jvi.71.12.9278-9284.1997
发表时间: 1997-12-01
影响因子: 5.4
作者:
Nguyen, VP;Hogue, BG
通讯作者: Hogue, BG
DOI: 10.1074/jbc.m002470200
发表时间: 2000-12-01
影响因子: 4.8
作者:
Lin, CY;Huang, PH;Lee, FJS
通讯作者: Lee, FJS
DOI: 10.1073/pnas.78.6.3824
发表时间: 1981-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
HOPP, TP;WOODS, KR
通讯作者: WOODS, KR
DOI: 10.1016/0042-6822(82)90095-2
发表时间: 1982-01-01
期刊: VIROLOGY
影响因子: 3.7
作者:
COLLINS, AR;KNOBLER, RL;BUCHMEIER, MJ
通讯作者: BUCHMEIER, MJ