کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6141847 1227320 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of novel human papillomavirus type 16 late mRNAs in differentiated W12 cervical epithelial cells
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ویروس شناسی
پیش نمایش صفحه اول مقاله
Analysis of novel human papillomavirus type 16 late mRNAs in differentiated W12 cervical epithelial cells
چکیده انگلیسی
The life cycle of human papillomavirus type 16 (HPV16) is intimately linked to differentiation of the epithelium it infects, and late events in the life cycle are restricted to the suprabasal layers. Here we have used 5′RACE of polyadenylated RNA isolated from differentiated W12 cells (cervical epithelial cells containing episomal copies of the HPV16 genome) that express virus late proteins to map virus late mRNAs. Thirteen different transcripts were identified. Extensive alternative splicing and use of two late polyadenylation sites were noted. A novel promoter located in the long control region was detected as well as P97 and Plate. Promoters in the E4 and E5 open reading frames were active yielding transcripts where L1 or L2 respectively are the first open reading frames. Finally, mRNAs that could encode novel proteins E6*^*E7, E6*^E4, E1^*E4 and E1^E2C (putative repressor E2) were identified, indicating that HPV16 may encode more late proteins than previously accepted.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Virology - Volume 360, Issue 1, 30 March 2007, Pages 172-181
نویسندگان
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