Expression pattern of a chloroplast NADPH-dependent thioredoxin reductase in Chlorella vulgaris during hardening and its interaction with 2-Cys peroxiredoxin

Takeshi Machida, Eri Kato, Akiko Ishibashi, Jun Ichi Sato, Shinji Kawasaki, Youichi Niimura, Ken-ichi Honjoh, Takahisa Miyamoto

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A chloroplastic NADPH-dependent thioredoxin reductase gene was identified from Chlorella vulgaris and designated CvNTRC. Mature CvNTRC protein (mCvNTRC) was expressed in Escherichia coli, and it showed both NADPH-dependent thioredoxin reductase (NTR) and thioredoxin (Trx)-like dithiol-disulfide oxidoreductase activities. The transcript of CvNTRC increased throughout 24-h hardening, whereas the encoded protein amount and total NTR activity decreased once and then increased during hardening. By in vitro pull-down assay, a 21.2-kDa protein bound to mCvNTRC was isolated and identified as a 2-Cys peroxiredoxin (2-Cys Prx) based on the N-terminal sequence. These data suggest that CvNTRC is maintained at a constant level during hardening and functions as an antioxidant with 2-Cys Prx in the acquisition of freezing tolerance of Chlorella.

Original languageEnglish
Pages (from-to)695-701
Number of pages7
JournalBioscience, Biotechnology and Biochemistry
Volume73
Issue number3
DOIs
Publication statusPublished - Jan 1 2009

Fingerprint

Chlorella vulgaris
Thioredoxin-Disulfide Reductase
Peroxiredoxins
Chloroplasts
NADP
Hardening
Proteins
Chlorella
Thioredoxins
Freezing
Disulfides
Escherichia coli
Assays
Oxidoreductases
Antioxidants
Genes

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry

Cite this

Expression pattern of a chloroplast NADPH-dependent thioredoxin reductase in Chlorella vulgaris during hardening and its interaction with 2-Cys peroxiredoxin. / Machida, Takeshi; Kato, Eri; Ishibashi, Akiko; Sato, Jun Ichi; Kawasaki, Shinji; Niimura, Youichi; Honjoh, Ken-ichi; Miyamoto, Takahisa.

In: Bioscience, Biotechnology and Biochemistry, Vol. 73, No. 3, 01.01.2009, p. 695-701.

Research output: Contribution to journalArticle

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AU - Sato, Jun Ichi

AU - Kawasaki, Shinji

AU - Niimura, Youichi

AU - Honjoh, Ken-ichi

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