The double mutant enzyme was crystallized and large single crystals were obtained.

对该突变体酶进行了晶体生长研究，获得了较大的单晶体。

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The properties of the mutant enzyme W117Y are very different from wild-type enzyme.

突变酶w 117y的性质与野生型酶明显不同。

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It is possible to obtain superior mutants from the material with the mutant enzyme bands, thus providing ample intermediate material for breeding.

具突变酶带者有可能获得优良的突变体，为育种提供丰富的中间材料。

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By patching in a plant gene, they have created a mutant strain that can make an enzyme which converts a natural amino acid called tyrosine into one of the synthetic forms.

ECONOMIST: Chemists are trying to synthesise new varieties of life