Role of the conserved AAUAAA sequence: four AAUAAA point mutants prevent messenger RNA 3' end formation.
Role of the conserved AAUAAA sequence: four AAUAAA point mutants prevent messenger RNA 3' end formation.
复制标题
保守 AAUAAA 序列的作用:四个 AAUAAA 点突变体阻止信使 RNA 3 末端的形成。
DOI:
10.1126/science.6208611
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发表时间:
1984
期刊:
影响因子:
--
通讯作者:
Stephenson,P
中科院分区:
文献类型:
--
作者:
Wickens,M;Stephenson,P
A small region (220 bases) of SV40 sequence information—141 bases before the polyadenylation site and 79 beyond—are sufficient for cleavage of an messenger RNA precursor (that is, the formation of a mature 3′ terminus), the addition of polyadenylic acid, and the transport of messenger RNA from the nucleus to the cytoplasm. These 220 bases include a highly conserved sequence—AAUAAA (A, adenine; U, uracil). Four point mutations in this sequence—AACAAA, AAUUAA, AAUACA, and AAUGAA (C, cytosine; G, guanine)—prevent cleavage.