Characterisation of the PsbX protein from Photosystem II and light regulation of its gene expression in higher plants

Lan Xin Shi, Soo Jung Kim, Alan Marchant, Colin Robinson, Wolfgang P. Schröder

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The location and expression of the previously uncharacterised photosystem II subunit PsbX have been analysed in higher plants. We show that this protein is a component of photosystem II (PSII) core particles but absent from light-harvesting complexes or PSII reaction centres. PsbX is, however, localised to the near vicinity of the reaction centre because it can be cross-linked to cytochrome b559, which is known to be associated with the D1/D2 dimer. We also show that the expression of this protein is tightly regulated by light, since neither protein nor mRNA is found in dark-grown plants.

Original languageEnglish (US)
Pages (from-to)737-744
Number of pages8
JournalPlant Molecular Biology
Volume40
Issue number4
DOIs
StatePublished - Jul 1999
Externally publishedYes

Fingerprint

Photosystem II Protein Complex
gene expression regulation
Gene Expression Regulation
Gene expression
photosystem II
Light
Proteins
light harvesting complex
proteins
cytochromes
Dimers
protein synthesis
Messenger RNA

Keywords

  • 4.1 kDa protein
  • Arabidopsis thaliana
  • Low-molecular-mass proteins
  • Photosystem II
  • PsbX
  • Spinach

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry

Cite this

Characterisation of the PsbX protein from Photosystem II and light regulation of its gene expression in higher plants. / Shi, Lan Xin; Kim, Soo Jung; Marchant, Alan; Robinson, Colin; Schröder, Wolfgang P.

In: Plant Molecular Biology, Vol. 40, No. 4, 07.1999, p. 737-744.

Research output: Contribution to journalArticle

Shi, Lan Xin ; Kim, Soo Jung ; Marchant, Alan ; Robinson, Colin ; Schröder, Wolfgang P. / Characterisation of the PsbX protein from Photosystem II and light regulation of its gene expression in higher plants. In: Plant Molecular Biology. 1999 ; Vol. 40, No. 4. pp. 737-744.
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