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 Previous Article

Journal of Bacteriology, September 2003, p. 5654-5656, Vol. 185, No. 18
0021-9193/03/$08.00+0     DOI: 10.1128/JB.185.18.5654-5656.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.

Strictly Polyphosphate-Dependent Glucokinase in a Polyphosphate-Accumulating Bacterium, Microlunatus phosphovorus

Shotaro Tanaka,1 Sun-Og Lee,1,2 Kazuhiro Hamaoka,1 Junichi Kato,1 Noboru Takiguchi,1 Kazunori Nakamura,3 Hisao Ohtake,1 and Akio Kuroda1,2*

Department of Molecular Biotechnology, Hiroshima University, Hiroshima 739-8530,1 PRESTO, Japan Science and Technology Corporation, Kawaguchi, Saitama 332-0012,2 Institute for Biological Resources and Functions, AIST, Ibaraki 305-8566, Japan3

Received 21 April 2003/ Accepted 23 June 2003

ATP-dependent glucokinase is suggested to have evolved from a hypothetical polyphosphate (polyP)-dependent glucokinase (polyP-GK) via a bifunctional polyP/ATP glucokinase (polyP/ATP-GK). Here we showed that polyP-GK is present in a polyP-accumulating bacterium, Microlunatus phosphovorus. The polyP-GK produced glucose-6-Pi from glucose and polyP, but it could not phosphorylate glucose with ATP. The polyP-GK was most closely related to the polyP/ATP-GK of Mycobacterium tuberculosis.

* Corresponding author. Mailing address: Department of Molecular Biotechnology, Hiroshima University, Hiroshima 739-8530, Japan. Phone: (81) 824-24-7758. Fax: (81) 824-24-7047. E-mail: akuroda{at}hiroshima-u.ac.jp.

Journal of Bacteriology, September 2003, p. 5654-5656, Vol. 185, No. 18
0021-9193/03/$08.00+0     DOI: 10.1128/JB.185.18.5654-5656.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

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  • Lunin, V. V., Li, Y., Schrag, J. D., Iannuzzi, P., Cygler, M., Matte, A. (2004). Crystal Structures of Escherichia coli ATP-Dependent Glucokinase and Its Complex with Glucose. J. Bacteriol. 186: 6915-6927 [Abstract] [Full Text]  


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