The noncoding region of HPV-6vc contains two distinct transcriptional enhancing elements.
The noncoding region of HPV-6vc contains two distinct transcriptional enhancing elements.
复制标题
HPV-6vc 的非编码区包含两个不同的转录增强元件。
DOI:
10.1016/0042-6822(86)90215-1
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发表时间:
1986
期刊:
影响因子:
3.7
通讯作者:
Lopez,C
中科院分区:
文献类型:
--
作者:
Rando,RF;Lancaster,WD;Han,P;Lopez,C
HPV-6vc subgenomic fragments were inserted into an enhancer-dependent expression vector for chloramphenicol acetyltransferase (CAT) and assayed for the presence of transcriptional enhancing elements. A transcriptional enhancing element was detected in the noncoding region (NCR) of the HPV-6vc viral genome when the CAT assays were perfomed in viral transformed human kidney cell lines (293 and 324K), in human cervical carcinoma cell lines (HeLa and Sibs), and in bovine papillomavirus type 1 (BPV-1) transformed mouse cells (C127-53). The NCR region of the HPV-6b genome was only capable of enhancing transcription of the CAT gene in the HeLa cell line at a level one-third that of the HPV-6vc NCR. The HPV-6vc NCR enhancing activity in C127-53 cells was further stimulated by the addition of sodium butyrate to the growth medium. Localization of the DNA sequences in the HPV-6vc NCR responsible for enhancing transcription revealed two distinct enhancer elements. One element (HPV-6ve position 7218–7544) was active in the 293, HeLa, Siha, and C127-53 cells. The second enhancer element (HPV-6vc position 7544–7971) was only capable of stimulating transcription in HeLa, C127-53, and Siha cells. When the HPV NCR-CAT expression vectors were cotransfected with a competitor plasmid (pNCR75) into C127-53 or HeLa cells then transcriptional enhancement decreased, indicating competition of cellular factors which affect both segments of the HPV-6vc NCR.
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DOI:
--
发表时间:
1982
影响因子:
11.1
作者:
N. Sarver;J. Byrne;P. Howley
通讯作者:
P. Howley
影响因子:
11.4
作者:
E. Schwarz;M. Dürst;C. Demankowski;O. Lattermann;R. Zech;E. Wolfsperger;S. Suhai;H. Hausen
通讯作者:
H. Hausen
影响因子:
3.7
作者:
AIELLO, L;GUILFOYLE, R;WEINMANN, R
通讯作者:
WEINMANN, R
影响因子:
64.5
作者:
B. Spalholz;Yu;P. Howley
通讯作者:
P. Howley
影响因子:
5.4
作者:
F. Rösl;W. Waldeck;G. Sauer
通讯作者:
G. Sauer