Cloning and nucleotide sequencing of the genes, rpIU and rpmA, for ribosomal proteins L21 and L27 of Escherichia coli.
[No authors listed]
摘要
The rpIU and rpmA genes that encode ribosomal proteins (r-proteins) L21 and L27 of Escherichia coli K-12 have been isolated from the ordered clone bank of this bacterium. They were found to be located at coordinates 3,351.7-3,352.3 kb on the physical map of E. coli. The nucleotide sequence of the cloned genes and their flanking regions indicated that the two r-protein genes compose an operon. Upstream of the two genes there is an open reading frame (ORF) in the opposite direction. The deduced polypeptide encoded by this ORF has a molecular weight of 35,215 and shows a significant degree of sequence similarity to the enzyme that is involved in the carotenoid biosynthesis and encoded by the crtE gene of carotenogenic bacteria and to prenyltransferases found in various organisms.
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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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