Abstract
Expression of the muscle-specific 2a isoform of the sarco/ endoplasmic reticulum Ca2+-ATPase (SERCA2) requires activation of an otherwise inefficient splice process at the 3′-end of the primary gene transcript. We provide evidence that SERCA2 splicing is a specifically regulated process, rather than the result of an increase in general splice efficiency or a decrease in polyadenylation efficiency at the 5′-most polyadenylation site. This is indicated by the fact that changes in general splice and polyadenylation efficiency, as observed during B-cell maturation, did not affect SERCA2 splicing. Furthermore, expression and overexpression studies did not support the hypothesis that changes in the level of the alternative splice factor ASF/SF2 or other arginine and serine rich proteins are sufficient to obtain the regulation of muscle- and neuronal-specific splicing.
Original language | English |
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Pages (from-to) | 647-651 |
Number of pages | 5 |
Journal | Biochemical Journal |
Volume | 317 |
Issue number | 3 |
DOIs | |
State | Published - Aug 1 1996 |
ASJC Scopus subject areas
- Biochemistry
- Molecular Biology
- Cell Biology