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Journal of Bacteriology, June 2007, p. 4529-4533, Vol. 189, No. 12
0021-9193/07/$08.00+0 doi:10.1128/JB.00033-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.
The Phosphotransferase System Formed by PtsP, PtsO, and PtsN Proteins Controls Production of Polyhydroxyalkanoates in Pseudomonas putida
Francisco Velázquez,1
Katharina Pflüger,1
Ildefonso Cases,1,2
Laura I. De Eugenio,3 and
Víctor de Lorenzo1*
Centro Nacional de Biotecnología-CSIC, Campus de Cantoblanco, Madrid 28049,1
Centro Nacional de Investigaciones Oncológicas, Madrid 28029,2
Centro de Investigaciones Biológicas-CSIC, Madrid 28006, Spain3
Received 8 January 2007/
Accepted 27 March 2007
The genome of Pseudomonas putida KT2440 encodes five proteins of the phosphoenolpyruvate-carbohydrate phosphotransferase system. Two of these (FruA and FruB) form a dedicated system for fructose intake, while enzyme INtr (EINtr; encoded by ptsP), NPr (ptsO), and EIINtr (ptsN) act in concert to control the intracellular accumulation of polyhydroxyalkanoates, a typical product of carbon overflow.
* Corresponding author. Mailing address: Centro Nacional de Biotecnología-CSIC, Campus UAM-Cantoblanco, Madrid 28049, Spain. Phone: 34-91 585 45 36. Fax: 34-91 585 45 06. E-mail:
vdlorenzo{at}cnb.uam.es
Published ahead of print on 6 April 2007.
Journal of Bacteriology, June 2007, p. 4529-4533, Vol. 189, No. 12
0021-9193/07/$08.00+0 doi:10.1128/JB.00033-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.
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