Geobacillus stearothermophilus LV cadA gene mediates resistance to cadmium, lead and zinc in zntA mutants of Salmonella entérica serovar Typhimurium
Biol. Res
; 39(4): 661-668, 2006. ilus
Article
in En
| LILACS
| ID: lil-456601
Responsible library:
BR1.1
ABSTRACT
Salmonella entérica 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, Pb 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.
Key words
Full text:
1
Collection:
01-internacional
Database:
LILACS
Main subject:
Salmonella typhimurium
/
Geobacillus stearothermophilus
/
Adenosine Triphosphatases
Language:
En
Journal:
Biol. Res
Journal subject:
BIOLOGIA
Year:
2006
Document type:
Article
/
Project document
Affiliation country:
Chile
/
United States
Country of publication:
Chile