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首页> 外文期刊>EMBO Journal >Type A and B RNase P RNAs are interchangeable in vivo despite substantial biophysical differences
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Type A and B RNase P RNAs are interchangeable in vivo despite substantial biophysical differences

机译:A型和B P rna核糖核酸酶是可以互换的体内,尽管大量的生物物理差异

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摘要

We show that structural type A and B bacterial ribonuclease P ( RNase P) RNAs can fully replace each other in vivo despite the many reported differences in their biogenesis, biochemical/ biophysical properties and enzyme function in vitro. Our findings suggest that many of the reported idiosyncrasies of type A and B enzymes either do not reflect the in vivo situation or are not crucial for RNase P function in vivo, at least under standard growth conditions. The discrimination of mature tRNA by RNase P, so far thought to prevent product inhibition of the enzyme in the presence of a large cellular excess of mature tRNA relative to the precursor form, is apparently not crucial for RNase P function in vivo.
机译:我们表明,结构类型A和B的细菌核糖核酸酶P(核糖核酸酶P) rna可以完全取代对方体内,尽管许多报道差异生物起源、生化/生物物理属性和酶功能体外。报道A和B型酶的特性或不能反映体内的情况不是至关重要的核糖核酸酶P函数体内,在哪里在标准的增长条件下最小。歧视的成熟的tRNA核糖核酸酶P,到目前为止认为防止产物抑制酶在细胞过剩成熟的tRNA相对于前体形式显然不是核糖核酸酶P功能的关键活着。

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