Journal Article

Bipolar Localization of Putative Photoreceptor Protein for Phototaxis in Thermophilic Cyanobacterium <i>Synechococcus elongatus</i>

Youichi Kondou, Norifumi Mogami, Fumiko Hoshi, Shinsuke Kutsuna, Miki Nakazawa, Tetsuya Sakurai, Minami Matsui, Takakazu Kaneko, Satoshi Tabata, Ichiro Tanaka and Katsushi Manabe

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 43, issue 12, pages 1585-1588
Published in print December 2002 | ISSN: 0032-0781
Published online December 2002 | e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/pcp/pcf176
Bipolar Localization of Putative Photoreceptor Protein for Phototaxis in Thermophilic Cyanobacterium Synechococcus elongatus

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  • Biochemistry
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We identified an open reading frame from a database of the entire genome of Synechococcus elongatus, the product of which was very similar to pixJ1, which was proposed as photoreceptor gene for phototaxis in Synechocystis sp. PCC6803 [Yoshihara et al. (2000) Plant Cell Physiol. 41: 1299]. The mRNA of S. elongatus pixJ (SepixJ) was expressed in vivo as a part of the product of an operon. SePixJ was detected exclusively in the membrane fraction after cell fractionation. Immunogold labeling of SePixJ in ultra-thin sections indicated that it existed only in both ends of the rod-shaped cell; probably bound with the cytoplasmic membrane.

Keywords: Keywords: Bipolar localization — Methyl-accepting chemotaxis protein — Photoreceptor — Phototaxis — Phytochrome — Thermophilic cyanobacterium.; Abbreviations: MCP, methyl-accepting chemotaxis protein; ORF, open reading frame; PCC, Pasteur culture collection; RT-PCR, reverse transcription-PCR.

Journal Article.  2311 words.  Illustrated.

Subjects: Biochemistry ; Molecular and Cell Biology ; Plant Sciences and Forestry

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