A widespread bacterial defence system called SNIPE is shown to localize to the cell membrane, where it identifies and cleaves the DNA of infecting phage as it is injected into the bacterial cell.
春节期间，北京亦庄，目之所及皆是鼓足干劲、奋力拼搏的蓬勃景象。，推荐阅读heLLoword翻译官方下载获取更多信息
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A former state Liberal MP accused of having sex with a 13-year-old boy in a car park toilet has claimed in court the boy told him he was 17 .
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