Effect of iron availability on expression of the Bradyrhizobium japonicum hemA gene.
作者： K M Page , E L Connolly , M L Guerinot
DOI: 10.1128/JB.176.5.1535-1538.1994
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摘要: Bradyrhizobium japonicum produces delta-aminolevulinic acid, the universal precursor of tetrapyrroles, in a reaction catalyzed by product hemA gene. Expression B. gene is affected iron availability. Activity hemA-lacZ fusion increased approximately threefold iron, and RNA analysis indicates that regulation at level mRNA accumulation. To our knowledge, this first example an iron-regulated heme biosynthetic prokaryotes.
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