【摘要】 <正>核仁小分子RNA(snoRNA)分为box C/D snoRNA,box H/ACA snoRNA和MRP RNA3类,前2类以数量繁多,基因组织形式复杂,功能多样而成为snoRNA的主要研究对象。笔者综合运用生物信息学方法,在拟南芥基因组中发现了一个新的box C/D snoRNA-AthZ270,对其序列结构、基因组织形式和功能进行了分析。更多还原

【Abstract】 [Objective] To identify a novel snoRNA gene in Arabidopsis thalianan. [Method] Genome sequence of Arabidopsis thalianan was screened by using bioinformatics methods,and the sequence structure,organization form and function of typical candidate gene were analyzed. [Result] The identified snR95 box H/ACA snoRNA had conservative component and structural features of box C/D snoRNA family,possessed two more than 10 nt long rRNA antisense elements. The result revealed that the novel snoRNA is a partial counterpart of the rice Z270,named box C/D snoRNA-AthZ270. [Conclusion] Z270 snoRNA in Arabidopsis thalianan has different function with common snoRNA.更多还原