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揭示tRNA核糖核苷酸转移酶Cca通过调控MexXY外排泵影响铜绿假单胞菌对 ...
本篇研究深入揭示了在铜绿假单胞菌中,tRNA核糖核苷酸转移酶Cca对氨基糖苷类抗生素耐药性与耐受性的调控机制。研究首次发现Cca功能缺失会通过增强其前导肽PA5471.1的mRNA核糖体停滞,从而上调抗阻遏蛋白ArmZ的表达,进而解除MexZ对MexXY多药外排泵的转录抑制 ...
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