Members of the Fur protein family regulate iron and zinc transport in E. coli and characteristics of the Fur-regulated fhuF protein.
[No authors listed]
摘要
The regulator Fur represses with Fe2+ as cofactor iron uptake genes. The fhuF gene reacts very sensitive to minor changes of Fe2+ and Fur. It is assumed that FhuF helps in the mobilisation of iron out of the hydroxamate siderophores transported into the cell. Analysis of the protein revealed an unusual [2Fe-2S] cluster bound to a Cys-Cys-X10-Cys-X2-Cys motif in FhuF. suf genes responsible for the synthesis of the iron sulfur center were identified. The Zur protein shows 27% identity to the Fur protein of E. coli. It regulates as a repressor the high affinity uptake system znuACB. Only two additional Zur binding sites in the promoter region of genes with unknown function were found. Properties of Zur and Fur proteins from different bacteria are compared.
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基因功能
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原始数据
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文献解读
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