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. 2007 Jul 26;7:71. doi: 10.1186/1471-2180-7-71

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Copyright © 2007 Bertani et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Western hybridization performed using anti-PpuR antibody on total cellular protein extracts. Total protein extracts were performed using different protein amounts of either parent strain P. putida WCS358 or lon mutant derivative P. putida IBE4 each carrying a plasmid expressing PpuR (pBBRppuR). Lane 1 corresponds to 10 μg of purified PpuR-6His; lane 2 and lane 3 correspond to total proteins from 2 × 10⁷cfu of WCS358(pBBRppuR) and IBE4(pBBRppuR) respectively; lanes 4 and 5 correspond to total proteins from 10⁷cfu. For lanes 4 and 5 the images were scanned using a Versadoc (Biorad) and the QuantityOne software; results of this quantification are displayed as a histogram. See text for all details.