首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Non-iron porphyrins cause tumbling to blue light by an Escherichia coli mutant defective in hemG
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Non-iron porphyrins cause tumbling to blue light by an Escherichia coli mutant defective in hemG

机译:非铁卟啉会导致hemG缺陷的大肠杆菌突变体导致蓝光翻滚

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摘要

Previously we showed that an Escherichia coli hemH mutant, defective in the ultimate step of heme synthesis, ferrochelatase, is somewhat better than 100-fold more sensitive than its wild-type parent in tumbling to blue light. Here we explore the effect of a hemG mutant, defective in the penultimate step, protoporphyrinogen oxidase. We found that a hemG mutant also is somewhat better than 100-fold more sensitive in tumbling to blue light compared to its wild-type parent.
机译:先前我们发现,在血红素合成的最终步骤铁螯合酶中有缺陷的大肠杆菌hemH突变体在转入蓝光时比其野生型亲本敏感性高100倍。在这里,我们探讨了在倒数第二步中缺陷的hemG突变体原卟啉原氧化酶的作用。我们发现,与野生型亲本相比,hemG突变体对蓝光的敏感度也要好100倍。

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