Bacillus subtilis RNase III gene: cloning, function of the gene in Escherichia coli, and construction of Bacillus subtilis strains with altered rnc loci.
Bacillus subtilis RNase III gene: cloning, function of the gene in Escherichia coli, and construction of Bacillus subtilis strains with altered rnc loci.
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枯草芽孢杆菌 RNase III 基因:克隆、该基因在大肠杆菌中的功能以及具有改变的 rnc 位点的枯草芽孢杆菌菌株的构建。
DOI:
10.1128/jb.179.23.7379-7385.1997
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发表时间:
1997
影响因子:
3.2
通讯作者:
Bechhofer,DH
中科院分区:
文献类型:
--
作者:
Wang,W;Bechhofer,DH
The rnc gene of Bacillus subtilis, which has 36% amino acid identity with the gene that encodes Escherichia coli RNase III endonuclease, was cloned in E. coli and shown by functional assays to encode B. subtilis RNase III (Bs-RNase III). The cloned B. subtilis rnc gene could complement an E. coli rnc strain that is deficient in rRNA processing, suggesting that Bs-RNase III is involved in rRNA processing in B. subtilis. Attempts to construct a B. subtilis rnc null mutant were unsuccessful, but a strain was constructed in which only a carboxy-terminal truncated version of Bs-RNase III was expressed. The truncated Bs-RNase III showed virtually no activity in vitro but was active in vivo. Analysis of expression of a copy of the rnc gene integrated at the amy locus and transcribed from a p(spac) promoter suggested that expression of the B. subtilis rnc is under regulatory control.