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Journal of Bacteriology, October 1999, p. 6197-6199, Vol. 181, No. 19
0021-9193/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Characterization of the Phthalate Permease OphD
from Burkholderia cepacia ATCC 17616
Hung-Kuang
Chang and
Gerben J.
Zylstra*
Biotechnology Center for Agriculture and the
Environment, Cook College, Rutgers University, New Brunswick, New
Jersey 08901-8520
Received 24 May 1999/Accepted 15 July 1999
The ophD gene, encoding a permease for phthalate
transport, was cloned from Burkholderia cepacia ATCC 17616. Expression of the gene in Escherichia coli results in the
ability to transport phthalate rapidly into the cell. Uptake inhibition
experiments show that 4-hydroxyphthalate, 4-chlorophthalate,
4-methylphthalate, and cinchomeronate compete for the phthalate
permease. An ophD knockout mutant of 17616 grows slightly
more slowly on phthalate but is still able to take up phthalate at
rates equivalent to that of the wild-type strain. This means that 17616 must have a second phthalate-inducible phthalate uptake system.
*
Corresponding author. Mailing address: Biotechnology
Center for Agriculture and the Environment, Foran Hall, 59 Dudley Rd., Cook College, Rutgers University, New Brunswick, NJ 08901-8520. Phone:
(732) 932-8165, ext. 320. Fax: (732) 932-0312. E-mail: zylstra{at}aesop.rutgers.edu.

Center for Environmental BioInorganic Chemistry (CEBIC) publication
4.
Journal of Bacteriology, October 1999, p. 6197-6199, Vol. 181, No. 19
0021-9193/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
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