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Journal of Bacteriology, July 2009, p. 4667-4670, Vol. 191, No. 14
0021-9193/09/$08.00+0     doi:10.1128/JB.00235-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Uptake of Glycerol-2-Phosphate via the ugp-Encoded Transporter in Escherichia coli K-12{triangledown}

Kechao Yang,{dagger} Mi Wang, and William W. Metcalf*

Department of Microbiology, University of Illinois at Urbana-Champaign, B103 CLSL, 601 S. Goodwin, Urbana, Illinois 61801

Received 20 February 2009/ Accepted 30 April 2009

During phenotypic characterization of various Escherichia coli mutants, we observed that {Delta}phoA strains are capable of using glycerol-2-phosphate (G2P) as a sole source of phosphorus. Mutations in the ugpBAECQ operon eliminated this phenotype, suggesting that G2P is a previously unrecognized substrate for the binding protein-dependent Ugp transporter.

* Corresponding author. Mailing address: Department of Microbiology, University of Illinois at Urbana-Champaign, 601 South Goodwin Avenue, Urbana, IL 61801. Phone: (217) 244-1943. Fax: (217) 244-6697. E-mail: metcalf{at}uiuc.edu

{triangledown} Published ahead of print on 8 May 2009.

{dagger} Present address: General Electric (China) Research and Development Center Co. Ltd., No. 1800 Cailun Road, Shanghai 201203, China.

Journal of Bacteriology, July 2009, p. 4667-4670, Vol. 191, No. 14
0021-9193/09/$08.00+0     doi:10.1128/JB.00235-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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