Prokaryotic Toxin-Antitoxins
Prokaryotic Toxin-Antitoxins
复制标题
原核毒素-抗毒素
DOI:
10.1007/978-3-642-33253-1_15
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Blower T
中科院分区:
文献类型:
--
作者:
Blower T
ThetoxINlocus from a cryptic plasmid of the plant pathogenPectobacteriumatrosepticumwas the first type III toxin–antitoxin (TA) system to be identified. This new paradigm describes how an RNA antitoxin directly interacts with and inhibits a protein toxin. Within this chapter, we discuss the discovery oftoxINas a potent bacteriophage resistance mechanism and the subsequent genetic, biochemical and structural studies that allowed construction of generalised working models for the activities of these novel systems. Furthermore, the recent identification of three independent families of type III systems, suggests the possibility of wider biological roles. Although type III TA loci had perhaps been initially considered a niche field, it is now clear that these systems are widespread, and thus presumably important in the biology of prokaryotes.
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