一类新内含子的研究状况  

Studies on a New Class of Introns.

作　　者：刘晓琼[1] 施先宗[1] 

机构地区：[1]华中师范大学昆虫学研究所,武汉430079

出　　处：《生物化学与生物物理进展》1997年第6期496-499,共4页Progress In Biochemistry and Biophysics

摘　　要：在真核细胞基因组中发现一类新内含子———AT AC内含子 ,除结构特征与普遍存在的核mRNA前体内含子有明显不同外 ,剪接机制上也存在一定差异 .文章介绍了该内含子的分布 ,结构特征及剪接机理 。A new class of introns that possess AT and AC respectively at their 5' and 3' ends, has been identified in eukaryotic genome. The AT AC introns differ from the major class of pre mRNA introns both in structural features and in splicing mechanism. The distribution, structural features and splicing mechanism of AT AC introns are discussed and compared with major class of introns.

关 键 词：内含子 AT-AC内含子 主内含子 分子生物化学 

分 类 号：Q7[生物学—分子生物学]