NUCLEOTIDE-SEQUENCE OF A RIBOSOMAL-RNA GENE INTRON FROM SLIME-MOLD PHYSARUM-POLYCEPHALUM

被引:66
作者
NOMIYAMA, H
SAKAKI, Y
TAKAGI, Y
机构
来源
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES | 1981年 / 78卷 / 03期
关键词
D O I
10.1073/pnas.78.3.1376
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The P. polycephalum 26S rRNA gene contains 2 intervening sequences (introns). The DNA sequence of one of these introns was analyzed together with that of its flanking regions (exons). The nucleotide sequence of the corresponding region of the reverse transcript of 26S rRNA was determined and from comparisons of both sequences, the precise location and size of the intron were determined. Certain characteristics exist near the ends of these introns. An exon ends in T at the exon/intron junction and an intron ends in G at the intron/exon junction in all cases. For each intron, direct repeats several nucleotides long are present from 5 to .apprxeq. 30 nucleotides upstream from both the exon/intron and intron/exon junctions.
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页码:1376 / 1380
页数:5
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