Charged amino acids conserved in the aromatic acid/H+ symporter family of permeases are required for 4-hydroxybenzoate transport by PcaK from Pseudomonas putida |
| |
Authors: | Ditty Jayna L Harwood Caroline S |
| |
Institution: | Department of Microbiology, The University of Iowa, Iowa City, IA 52242, USA. |
| |
Abstract: | Charged amino acids in the predicted transmembrane portion of PcaK, a permease from Pseudomonas putida that transports 4-hydroxybenzoate (4-HBA), were required for 4-HBA transport, and they were also required for P. putida to have a chemotactic response to 4-HBA. An essential amino acid motif (DGXD) containing aspartate residues is located in the first transmembrane segment of PcaK and is conserved in the aromatic acid/H+ symporter family of the major facilitator superfamily of transporters. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|