N
Nozomu Koizumi
Researcher at Osaka Prefecture University
Publications - 107
Citations - 5585
Nozomu Koizumi is an academic researcher from Osaka Prefecture University. The author has contributed to research in topics: Unfolded protein response & Endoplasmic reticulum. The author has an hindex of 40, co-authored 103 publications receiving 5073 citations. Previous affiliations of Nozomu Koizumi include National Archives and Records Administration & Kyoto University.
Papers
More filters
Journal ArticleDOI
Periodic DNA Methylation in Maize Nucleosomes and Demethylation by Environmental Stress
TL;DR: When maize seedlings were exposed to cold stress, a genome-wide demethylation occurred in root tissues, and one particular fragment, designated ZmMI1, contained part of the coding region of a putative protein and part of a retrotransposon-like sequence.
Journal ArticleDOI
An Arabidopsis transcription factor, AtbZIP60, regulates the endoplasmic reticulum stress response in a manner unique to plants.
Yuji Iwata,Nozomu Koizumi +1 more
TL;DR: Analysis of transcripts of 75 genes encoding putative basic leucine zipper ( bZIP) transcription factors in the Arabidopsis genome identified AtbZIP60, which was induced by tunicamycin, suggesting a signal transduction pathway of the ER stress response unique to plants.
Journal ArticleDOI
Arabidopsis IRE1 catalyses unconventional splicing of bZIP60 mRNA to produce the active transcription factor
Yukihiro Nagashima,Kei-ichiro Mishiba,Eiji Suzuki,Yukihisa Shimada,Yuji Iwata,Yuji Iwata,Nozomu Koizumi +6 more
TL;DR: It is 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.
Journal ArticleDOI
Arabidopsis bZIP60 Is a Proteolysis-Activated Transcription Factor Involved in the Endoplasmic Reticulum Stress Response
TL;DR: It is reported here that bZIP60, an Arabidopsis thaliana basic leucine zipper (bZIP) transcription factor with a transmembrane domain, is involved in the ER stress response.
Journal ArticleDOI
Molecular characterization of two Arabidopsis Ire1 homologs, endoplasmic reticulum-located transmembrane protein kinases.
Nozomu Koizumi,Immaculada M. Martinez,Yukio Kimata,Kenji Kohno,Hiroshi Sano,Maarten J. Chrispeels +5 more
TL;DR: Functional complementation of the sensor domains of the two proteins in yeast and show that the Ire1-2 protein is capable of autotransphosphorylation are demonstrated in relation to the involvement of these genes in unfolded protein response signaling in plants.