他们利用来自化脓链球菌（Streptococcus pyogenes）的Cas9酶，针对一组靶RNA和DNA完成了各种体外切割实验。
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化脓性链球菌 Streptococcus pyogenes ; Pyogenic streptococcus
化脓性溶血性链球菌群 Pyogenic hemolytic streptococci
或化脓性链球菌 Streptococcus pyogenes
急性链球菌感染所致化脓性脑膜炎患者脑膜下可见化脓性渗出物。渗出物使脑沟变浅。
A purulent exudate is seen beneath the meninges in the brain of this patient with acute meningitis from Streptococcus pneumoniae infection. The exudate obscures the sulci.
化脓性链球菌可以产生许多的致病毒力因数，而过去已有许多相关研究。
S. pyogenes produces several virulence factors and many of them have been shown to contribute to its infection.
芯片已经被用来比较表现得到修改体外生长条件征收强调化脓性链球菌在快速增长。
Microarrays have been used to compare the expression profiles obtained by modifying in vitro growth conditions to impose stress on S. pyogenes during exponential growth.
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