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Microbiology 145 (1999), 2931-2937
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Microbiology (1999), 145, 2931-2937.
© 1999 Society for General Microbiology

Genetics and Molecular Biology

Regulation of polyphosphate kinase gene expression in Acinetobacter baumannii 252

Julie-Ann Gavigan1, Leonard M. Marshall1 and Alan D. W. Dobson1

Microbiology Department and National Food Biotechnology Centre, National University of Ireland Cork, Cork, Ireland1

Author for correspondence: Alan D. W. Dobson. Tel: +353 21 902743. Fax: +353 21 903101. e-mail: a.dobson{at}ucc.ie

A strain of Acinetobacter baumannii cultured in butyric acid media was found to take up phosphate following a period of phosphate release. PCR was used to clone the polyphosphate kinase (ppk) gene from the strain. The promoter for the ppk gene was functional in the heterologous Escherichia coli host. Using RT-PCR, transcription of the ppk gene was found to be regulated by phosphate concentration.

Keywords: Acinetobacter baumannii, polyphosphate kinase, RT-PCR

Abbreviations: EBPR, enhanced biological phosphate removal; RACE, rapid amplification of cDNA ends

The GenBank accession number for the sequence determined in this work is AF116175.




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