Human papillomavirus type 6: classification of clinical isolates and functional analysis of E2 proteins.
Human papillomavirus type 6: classification of clinical isolates and functional analysis of E2 proteins.
复制标题
人乳头瘤病毒6型:临床分离株的分类和E2蛋白的功能分析。
DOI:
10.1099/0022-1317-80-9-2445
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Barbosa,MiguelS
中科院分区:
文献类型:
--
作者:
Kovelman,Robert;Bilter,GrahamK;Roman,Ann;Brown,DarronR;Barbosa,MiguelS
Human papillomaviruses (HPVs) cause a variety of clinical manifestations, including the most prevalent viral sexually transmitted disease, genital warts. HPV-6 is found in a greater number of genital warts than any other HPV. To increase our understanding of the structural and functional relationships between HPV-6 isolates and to provide information for epidemiological studies, the sequences of the E2, E6 and E7 coding regions of HPV-6 genomes in clinical samples were determined. This sequence analysis was performed on isolates originally designated HPV-6a on the basis of analysis of patterns generated by restriction enzyme digestion. It was found that the designation of subtype on the basis of restriction enzyme digestion correlated poorly with the designation of subtype on the basis of sequence comparison; in fact, the clinical isolates were clearly categorized into HPV-6a and HPV-6b groups, with the previously described HPV-6vc being a member of the HPV-6a group. It was also found that the HPV-6a E2 protein is a much less potent activator of transcription than the HPV-16 E2 protein, generalizing our previous results with the HPV-6b E2 protein to this second HPV-6 E2 protein. These studies indicate that the amino acid differences observed between these natural variants of the HPV-6 E2 protein do not affect its function.
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