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. 1987 Dec 10;15(23):9627-40.
doi: 10.1093/nar/15.23.9627.

Putative polyadenylation signals in nuclear genes of higher plants: a compilation and analysis

C P Joshi  1
Affiliations
Free PMC article

Putative polyadenylation signals in nuclear genes of higher plants: a compilation and analysis

C P Joshi. Nucleic Acids Res. .
Free PMC article

Abstract

In animal and viral pre-mRNAS, the process of polyadenylation is mediated through several cis-acting poly (A) signals present upstream and downstream from poly (A) sites. The situation regarding polyadenylation of higher plant pre-mRNAS, however, has remained obscure so far. In this paper, a search for putative poly (A) signals is made by considering the published data from 46 plant genomic DNA sequences. Certain domains in the 3' untranslated regions from nuclear genes of higher plants were compiled and occurrence of sequence motifs such as AATAAA, CAYTG, YGTGTTYY and YAYTG was scored in relation to poly (A) sites. Moreover, consensus sequences for important regions in the 3' untranslated sequences and poly (A) signals were also deduced from the data. It was inferred that sequence motifs similar to poly (A) signals exist around poly (A) sites but some of them are in entirely different spatial relationship than observed in other eukaryotes. This indicates their probable non-involvement in the process of polyadenylation in higher plants necessitating a functional analysis approach to define the plant specific poly (A) signals.

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References

    1. Nucleic Acids Res. 1984 Jun 11;12(11):4493-506 - PubMed
    1. Cell. 1986 May 23;45(4):581-91 - PubMed
    1. EMBO J. 1986 Sep;5(9):2063-2071 - PubMed
    1. Proc Natl Acad Sci U S A. 1986 Mar;83(5):1408-12 - PubMed
    1. Nucleic Acids Res. 1987 Feb 25;15(4):1353-61 - PubMed