The Noc proteins involved in ribosome synthesis and export contain divergent HEAT repeats

被引:15
作者
Dlakic, M [1 ]
Tollervey, D
机构
[1] Montana State Univ, Dept Microbiol, Bozeman, MT 59717 USA
[2] Univ Edinburgh, Wellcome Trust, Ctr Cell Biol, Edinburgh EH9 3JR, Midlothian, Scotland
关键词
rRNA; ribosome formation; ribonucleoproteins; molecular models; yeast;
D O I
10.1261/rna.5184704
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The Noc1-4p proteins were previously reported to be involved in intranuclear and nucleocytoplasmic transport of pre-ribosomes. Using fold recognition and structural modeling, we show that Noc1-4p are largely comprised of alpha-helical repeats similar to HEAT repeats. Because other HEAT-repeat proteins play key roles in transport processes, this finding provides a plausible mechanistic explanation for the function of the Noc proteins.
引用
收藏
页码:351 / 354
页数:4
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