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Journal of Bacteriology, December 2007, p. 8737-8740, Vol. 189, No. 23
0021-9193/07/$08.00+0     doi:10.1128/JB.00899-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Polymerization of the Actin-Like Protein MamK, Which Is Associated with Magnetosomes{triangledown}

Azuma Taoka,1,{dagger} Ryuji Asada,1,{dagger} Long-Fei Wu,2 and Yoshihiro Fukumori1*

Department of Life Science, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan,1 Laboratoire de Chimie Bactérienne, UPR9043, IBSM, CNRS, 31, Chemin Joseph Aiguier, 13402 Marseille cedex 20, France2

Received 8 June 2007/ Accepted 20 September 2007

The recombinant actin-like protein MamK was purified from Escherichia coli and used as an antigen to generate the anti-MamK antibody. Immunostaining studies showed a linear distribution of MamK in Magnetospirillum magnetotacticum cells and of MamK in association with magnetosomes. Moreover, we demonstrated that MamK polymerizes into filamentous bundles in vitro.

* Corresponding author. Mailing address: Department of Life Science, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan. Phone: 81-76-264-6231. Fax: 81-76-264-6230. E-mail: fukumor{at}kenroku.kanazawa-u.ac.jp

{triangledown} Published ahead of print on 28 September 2007.

{dagger} A.T. and R.A. contributed equally to this work.

Journal of Bacteriology, December 2007, p. 8737-8740, Vol. 189, No. 23
0021-9193/07/$08.00+0     doi:10.1128/JB.00899-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Arakaki, A., Nakazawa, H., Nemoto, M., Mori, T., Matsunaga, T. (2008). Formation of magnetite by bacteria and its application. J R Soc Interface 5: 977-999 [Abstract] [Full Text]  


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