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Full-Text Articles in Veterinary Medicine
Role Of An Iron-Dependent Transcriptional Regulator In The Pathogenesis And Host Response To Infection With Streptococcus Pneumoniae., Radha Gupta, Minny Bhatty, Edwin Swiatlo, Bindu Nanduri
Role Of An Iron-Dependent Transcriptional Regulator In The Pathogenesis And Host Response To Infection With Streptococcus Pneumoniae., Radha Gupta, Minny Bhatty, Edwin Swiatlo, Bindu Nanduri
College of Veterinary Medicine Publications and Scholarship
Iron is a critical cofactor for many enzymes and is known to regulate gene expression in many bacterial pathogens. Streptococcus pneumoniae normally inhabits the upper respiratory mucosa but can also invade and replicate in lungs and blood. These anatomic sites vary considerably in both the quantity and form of available iron. The genome of serotype 4 pneumococcal strain TIGR4 encodes a putative iron-dependent transcriptional regulator (IDTR). A mutant deleted at idtr (?idtr) exhibited growth kinetics similar to parent strain TIGR4 in vitro and in mouse blood for up to 48 hours following infection. However, ?idtr was significantly attenuated in a …