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Cited by 337

The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.

Arabidopsis IRE1 catalyses unconventional splicing of bZIP60 mRNA to produce the active transcription factor

Open access
Nagashima, Yukihiro, Mishiba, Kei-ichiro, Suzuki, Eiji, Shimada, Yukihisa, Iwata, Yuji, Koizumi, Nozomu·2011·Scientific Reports

Abstract

IRE1 plays an essential role in the endoplasmic reticulum (ER) stress response in yeast and mammals. We found that a double mutant of Arabidopsis IRE1A and IRE1B (ire1a/ire1b) is more sensitive to the ER stress inducer tunicamycin than the wild-type. Transcriptome analysis revealed that genes whose induction was reduced in ire1a/ire1b largely overlapped those in the bzip60 mutant. We observed that the active form of bZIP60 protein detected in the wild-type was missing in ire1a/ire1b. We further demonstrated that bZIP60 mRNA is spliced by ER stress, removing 23 ribonucleotides and therefore causing a frameshift that replaces the C-terminal region of bZIP60 including the transmembrane domain (TMD) with a shorter region without a TMD. This splicing was detected in ire1a and ire1b single mutants, but not in the ire1a/ire1b double mutant. We conclude that IRE1A and IRE1B catalyse unconventional splicing of bZIP60 mRNA to produce the active transcription factor.

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Metadata

Authors
Nagashima, Y., Mishiba, K.-I., Suzuki, E., Shimada, Y., Iwata, Y., & Koizumi, N.
Venue
Scientific Reports
Published
2011-07-01
Volume
1
Issue
1
Pages
29-29
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2017313942
Cited by
337
References
41
FWCI
9.12
Type
journal article
Language
en
Open access
gold

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