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STABILIZED1, a Stress-Upregulated Nuclear Protein, Is Required for Pre-mRNA Splicing, mRNA Turnover, and Stress Tolerance in Arabidopsis

Open access
Lee, Byeong-ha, Kapoor, Avnish, Zhu, Jianhua, Zhu, Jian-Kang·2006·The Plant Cell

Abstract

In plants, many gene transcripts are very unstable, which is important for the tight control of their temporal and spatial expression patterns. To identify cellular factors controlling the stability of unstable mRNAs in plants, we used luciferase imaging in Arabidopsis thaliana to isolate a recessive mutant, stabilized1-1 (sta1-1), with enhanced stability of the normally unstable luciferase transcript. The sta1-1 mutation also causes the stabilization of some endogenous gene transcripts and has a range of developmental and stress response phenotypes. STA1 encodes a nuclear protein similar to the human U5 small ribonucleoprotein–associated 102-kD protein and to the yeast pre-mRNA splicing factors Prp1p and Prp6p. STA1 expression is upregulated by cold stress, and the sta1-1 mutant is defective in the splicing of the cold-induced COR15A gene. Our results show that STA1 is a pre-mRNA splicing factor required not only for splicing but also for the turnover of unstable transcripts and that it has an important role in plant responses to abiotic stresses.

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Metadata

Authors
Lee, B.-H., Kapoor, A., Zhu, J., & Zhu, J.-K.
Venue
The Plant Cell
Published
2006-06-02
Volume
18
Issue
7
Pages
1736-1749
ISSN
  • 1040-4651 (ISSN-L)
  • 1532-298X
OpenAlex
W2121735421
Cited by
209
References
2
FWCI
4.05
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: STABILIZED1, a Stress-Upregulated Nuclear Protein, Is Required for Pre-mRNA Splicing, mRNA Turnover, and Stress Tolerance in Arabidopsis. https://app.cochat.ai/papers/10.1105/tpc.106.042184
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Lee, B.-H., Kapoor, A., Zhu, J., & Zhu, J.-K. (2006). STABILIZED1, a Stress-Upregulated Nuclear Protein, Is Required for Pre-mRNA Splicing, mRNA Turnover, and Stress Tolerance in Arabidopsis. The Plant Cell. https://doi.org/10.1105/tpc.106.042184

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