کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1928624 1050380 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The ribosomal protein rpl26 promoter is required for its 3′ sense terminus ncRNA transcription in Schizosaccharomyces pombe, implicating a new transcriptional mechanism for ncRNAs
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
The ribosomal protein rpl26 promoter is required for its 3′ sense terminus ncRNA transcription in Schizosaccharomyces pombe, implicating a new transcriptional mechanism for ncRNAs
چکیده انگلیسی


• Identification of a novel snoRNA snR49 located near the 3′ sense terminus of rpl26.
• snR49 is required for 18S rRNA pseudouridylation at U121 and U305 sites.
• The rpl26 promoter is required for its 3′ TASR snR49 transcription.
• Chromosomal synteny of rpl26–snR49 is found in the Schizosaccharomyces groups.

Transcriptome studies have revealed that many non-coding RNAs (ncRNAs) are located near the 3′ sense terminus of protein-coding genes. However, the transcription and function of these RNAs remain elusive. Here, we identify a 3′ sense termini-associated sRNA (TASR) downstream of rpl26 in Schizosaccharomyces pombe (S. pombe). Structure and function assays indicate that the TASR is an H/ACA box snoRNA required for 18S rRNA pseudouridylation at U121 and U305 sites and is therefore a cognate of snR49 from the budding yeast. Transcriptional studies show that pre-snR49 overlaps most of the coding sequence (CDS) of rpl26. Using scanning deletion analysis within promoter region, we show that the rpl26 promoter is required for the 3′ TASR transcription. Interestingly, chromosomal synteny of rpl26–snR49 is found in the Schizosaccharomyces groups. Taken together, we have revealed a new transcriptional mechanism for 3′ sense TASRs, which are transcribed by the same promoter as their upstream protein genes. These results further suggest that the origin and function of 3′ sense ncRNAs are associated with upstream genes in higher eukaryotes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 444, Issue 1, 31 January 2014, Pages 86–91
نویسندگان
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