The LexA Protein from Deinococcus radiodurans Is Not Involved in RecA Induction following gamma  Irradiation

doi:10.1128/JB.183.23.6951-6956.2001

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Journal of Bacteriology, December 2001, p. 6951-6956, Vol. 183, No. 23
0021-9193/01/$04.00+0 DOI: 10.1128/JB.183.23.6951-6956.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

The LexA Protein from Deinococcus radiodurans Is Not Involved in RecA Induction following $gamma$ Irradiation

Issay Narumi,¹^,^* Katsuya Satoh,¹^,² Masahiro Kikuchi,¹ Tomoo Funayama,¹ Tadashi Yanagisawa,³ Yasuhiko Kobayashi,¹ Hiroshi Watanabe,¹ and Kazuo Yamamoto¹^,⁴

Biotechnology Laboratory, Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute, Takasaki 370-1292,¹ United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchuu 183-8509,² Faculty of Agriculture, Utsunomiya University, Utsunomiya 321-8505,³ and Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai 980-8578,⁴ Japan

Received 1 June 2001/Accepted 14 September 2001

The involvement of LexA in induction of RecA was investigated in Deinococcus radiodurans. As in the wild-type strain, an increasein RecA protein synthesis following $gamma$ irradiation was detectedin a lexA disruptant, indicating that LexA is not involved inthe induction of RecA in D. radiodurans.

^* Corresponding author. Mailing address: Biotechnology Laboratory, TRCRE, JAERI Takasaki, 1233 Watanuki, Takasaki 370-1292,Japan. Phone: 81 (27) 346-9542. Fax: 81 (27) 346-9688. E-mail:narumi{at}taka.jaeri.go.jp.

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The LexA Protein from Deinococcus radiodurans Is Not Involved in RecA Induction following Irradiation

The LexA Protein from Deinococcus radiodurans Is Not Involved in RecA Induction following $gamma$ Irradiation