Toward a structural understanding of Clostridium difficile toxins A and B.

Toward a structural understanding of Clostridium difficile toxins A and B.
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DOI:
10.3389/fcimb.2012.00028
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发表时间:
2012
影响因子:
5.7
通讯作者:
Lacy DB
Lacy DB
中科院分区:
医学2区
文献类型:
--
作者:
Pruitt RN;Lacy DB

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Clostridium difficile is a toxin-producing bacterium that is a frequent cause of hospital-acquired and antibiotic-associated diarrhea. The incidence, severity, and costs associated with C. difficile associated disease are substantial and increasing, making C. difficile a significant public health concern. The two primary toxins, TcdA and TcdB, disrupt host cell function by inactivating small GTPases that regulate the actin cytoskeleton. This review will discuss the role of these two toxins in pathogenesis and the structural and molecular mechanisms by which they intoxicate cells. A focus will be placed on recent publications highlighting mechanistic similarities and differences between TcdA, TcdB, and different TcdB variants.
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