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Geobacillus stearothermophilus LV cadA gene mediates resistance to cadmium, lead and zinc in zntA mutants of Salmonella serovar typhimurium
Keywords: sequence, sensitivity, zinc, salmonella, resistance, expression, metal, protein, product, cell, gene, chloride, mutant, mutation, bacterial, serotype, phenotype, lead, deletion, cadmium, typhimurium, homology, drug, carrier, adenosine, article, bacterium, cada, analysis, function, genetic, enterica, controlled, znta, reading, frame, bacillus, study, nucleotide, derivative, nonhuman, triphosphatase, Resistance,, open, Regulation,, unclassified, Triphosphatases, subsp., Geobacillus, stearothermophilus, serovar
Abstract
Salmonella enterica serovar Typhimurium cells expressing the cadA gene of Geobacillus stearothermophilus LV exhibit a hypersensitive phenotype to cadmium chloride. Deletion of the ORF STM3576 from the Salmonella genome resulted in cadmium, lead and zinc sensitivity, confirming that this ORF is a homologue of the zntA gene. The observed sensitivity was reverted upon expression of the G. stearothermophilus LV cadA gene. These results indicate that the cadA gene product is involved in Cd, Ph and Zn resistance as a classical P-type ATPase and strongly suggest that the observed hypersensitive phenotype to these metals can be related to the function of the host zntA gene product.
Más información
| Título según SCOPUS: | Geobacillus stearothermophilus LV cadA gene mediates resistance to cadmium, lead and zinc in zntA mutants of Salmonella serovar typhimurium |
| Título de la Revista: | BIOLOGICAL RESEARCH |
| Volumen: | 39 |
| Número: | 4 |
| Editorial: | SOC BIOLGIA CHILE |
| Fecha de publicación: | 2006 |
| Página de inicio: | 661 |
| Página final: | 668 |
| Idioma: | eng |
| URL: | http://www.scopus.com/inward/record.url?eid=2-s2.0-34547553683&partnerID=q2rCbXpz |
| Notas: | SCOPUS |