The choice of expression vector and host strain plays an important role in expression of xylanase.

表达载体和宿主的选择对于木聚糖酶基因的表达起着至关重要的作用。

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The ABP1 and TIR1 prokaryotic expression vectors were transformed into expression host strain BL21 (DE3), then after, IPTG was added to induce expression.

将构建好的ABP1及TIR1原核表达载体，转化表达宿主菌bl21 (DE3)，加入诱导物iptg进行诱导表达。

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Rare birds and people from other host was infected with influenza virus, but they can be transmitted to the same influenza strain has its own pig.

珍稀鸟类和人民从其他主机感染了流感病毒，但他们可以传播到同一流感有自己的猪。

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That experiment was based on the long-held notion that a pandemic strain is more likely to emerge when a flu virus mixes its genes with another virus in an animal host, such as a pig.

WSJ: Scientists Craft Bird Flu Type That Can Be Transmitted Through Air