منابع مشابه
Signals sufficient for 3'-end formation of yeast mRNA.
The following three elements were previously shown to be required for 3'-end formation of mRNA in the yeast Saccharomyces cerevisiae: (i) the efficiency element TATATA or related sequences, which function by enhancing the efficiency of downstream positioning elements; (ii) the positioning element AATAAA or related sequences, which position the poly(A) site; and (iii) the actual poly(A) site, wh...
متن کاملGenomic detection of new yeast pre-mRNA 3'-end-processing signals.
To investigate Saccharomyces cerevisiae 3'-end-processing signals, a set of 1352 unique pre-mRNA 3'-end-processing sites, corresponding to 861 different genes, was identified by alignment of expressed sequence tag sequences with the complete yeast genome. Nucleotide word frequencies in the vicinity of the cleavage sites were analyzed to reveal the signal element features. In addition to previou...
متن کاملCharacterisation of 3' end formation of the yeast HIS3 mRNA.
The nucleotide (nt) sequence of the 3' end of the yeast HIS3 mRNA was determined by PCR amplification of the 3' end. Analysis of 28 individual clones revealed that at least 13 distinct polyadenylation sites are present. The sites of polyadenylation are extremely heterogeneous and do not show any obvious similarity other than that they occur after pyrimidine residues in most cases. Most mutants ...
متن کاملSequence requirements of the bidirectional yeast TRP4 mRNA 3'-end formation signal.
The yeast TRP4 3'-end formation signal functions in both orientations in an in vivo test system. We show here that the TRP4 3'-end formation element consists of two functionally different sequence regions. One region of approximately 70 nucleotides is located in the untranslated region between the translational stop codon and the major poly(A) site. The major poly(A) site is not part of this re...
متن کاملGenome level analysis of rice mRNA 3′-end processing signals and alternative polyadenylation
The position of a poly(A) site of eukaryotic mRNA is determined by sequence signals in pre-mRNA and a group of polyadenylation factors. To reveal rice poly(A) signals at a genome level, we constructed a dataset of 55 742 authenticated poly(A) sites and characterized the poly(A) signals. This resulted in identifying the typical tripartite cis-elements, including FUE, NUE and CE, as previously ob...
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ژورنال
عنوان ژورنال: Molecular and Cellular Biology
سال: 1995
ISSN: 0270-7306,1098-5549
DOI: 10.1128/mcb.15.11.5983