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J Cell Biochem. 2011 Oct;112(10):2655-62. doi: 10.1002/jcb.23193.

Regulatory and pathogenesis roles of Mycobacterium Lrp/AsnC family transcriptional factors.

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Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three GorgesArea, School of Life Sciences, Southwest University, Chongqing 400715, China.


Lrp/AsnC (leucine-responsive regulatory protein/asparagine synthase C products) family transcriptional regulators, widespread among bacteria and archaea, is also known as feast/famine regulatory protein (FFRPs). They regulate multiple cellular metabolisms globally (Lrp) or specifically (AsnC), such as amino acid metabolism, pili synthesis, DNA transactions during DNA repair and recombination, and also might be implicated in persistence. To better understanding of the pathogenesis of M. tuberculosis, based on our lab's work on this transcriptional factor family, these progresses are summarized, with special focus on that of Mycobacterium via comparative genomics.

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