Domain definition and interaction mapping for the endonuclease complex hNob1/hPno1.
[No authors listed]
摘要
Ribosome biogenesis requires a variety of trans-acting factors in order to produce functional ribosomal subunits. In human cells, the complex formed by the proteins hNob1 and hPno1 is crucial to the site 3 cleavage occurring at the 3'-end of 18S pre-rRNA. However, the properties and activity of this complex are still poorly understood. We present here a detailed characterization of hNob1 organization and its interaction with hPno1. We redefine the boundaries of the endonuclease PIN domain present in hNob1 and we further delineate the precise interacting modules required for complex formation in hNob1 and hPno1. Altogether, our data contributes to a better understanding of the complex biology required during the site 3 cleavage step in ribosome biogenesis.
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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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