SPLICE SITE SELECTION IN PLANT PRE-mRNA SPLICING

The purpose of this review is to highlight the unique and common features of splice site selection in plants compared with the better understood yeast and vertebrate systems. A key question in plant splicing is the role of AU sequences and how and at what stage they are involved in spliceosome assem...

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Veröffentlicht in:Annual review of plant biology 1998-06, Vol.49 (1), p.77-95
Hauptverfasser: Brown, J. W. S., Simpson, C. G.
Format: Artikel
Sprache:eng
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Zusammenfassung:The purpose of this review is to highlight the unique and common features of splice site selection in plants compared with the better understood yeast and vertebrate systems. A key question in plant splicing is the role of AU sequences and how and at what stage they are involved in spliceosome assembly. Clearly, intronic U- or AU-rich and exonic GC- and AG-rich elements can influence splice site selection and splicing efficiency and are likely to bind proteins. It is becoming clear that splicing of a particular intron depends on a fine balance in the "strength" of the multiple intron signals involved in splice site selection. Individual introns contain varying strengths of signals and what is critical to splicing of one intron may be of less importance to the splicing of another. Thus, small changes to signals may severely disrupt splicing or have little or no effect depending on the overall sequence context of a specific intron/exon organization.
ISSN:1040-2519
1543-5008
1545-2123
DOI:10.1146/annurev.arplant.49.1.77