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多头绒泡菌核糖体RNA基因周围的同向重复序列。

Direct repeats surrounding the ribosomal RNA genes of Physarum polycephalum.

作者信息

Hattori M, Ljljana A, Sakaki Y

出版信息

Nucleic Acids Res. 1984 Feb 24;12(4):2047-53. doi: 10.1093/nar/12.4.2047.

DOI:10.1093/nar/12.4.2047
PMID:6322132
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC318639/
Abstract

Sequence homology was found between the external transcribed spacer and the terminal non-transcribed spacer of Physarum polycephalum rDNA. The homologous sequences were located 2kb upstream from the 19s rRNA gene and 0.3kb downstream from 26S rRNA gene, respectively, and were arranged in a direct repeat manner. Sequence analyses showed that the direct repeats consisted of two parts: one was sequences of about 130bp which showed over 90% sequence homology with each other. The other consisted mainly of many tandem repeats of a 50 to 52bp unit. The direct repeat-rRNA genes-direct repeat unit was found to be flanked by short direct repetitious sequences. Based on these findings, the significance of the direct repeat is discussed in terms of evolution of rDNA.

摘要

在多头绒泡菌核糖体DNA的外部转录间隔区和末端非转录间隔区之间发现了序列同源性。同源序列分别位于19s rRNA基因上游2kb处和26S rRNA基因下游0.3kb处，并以正向重复的方式排列。序列分析表明，正向重复由两部分组成：一部分是约130bp的序列，它们之间的序列同源性超过90%。另一部分主要由一个50至52bp单位的许多串联重复组成。发现正向重复-rRNA基因-正向重复单元两侧是短的正向重复序列。基于这些发现，从核糖体DNA的进化角度讨论了正向重复的意义。

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1
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2
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引用本文的文献

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本文引用的文献

1
A family of inverted repeat sequences and specific single-strand gaps at the termini of the Physarum rDNA palindrome.绒泡菌核糖体DNA回文序列末端的一个反向重复序列家族和特定单链缺口。
Cell. 1980 Dec;22(3):875-86. doi: 10.1016/0092-8674(80)90564-4.
2
Structure around the 3' terminus of the 26S ribosomal RNA gene of Physarum polycephalum.多头绒泡菌26S核糖体RNA基因3'末端周围的结构。
Gene. 1981 Dec;16(1-3):309-15. doi: 10.1016/0378-1119(81)90086-x.
3
Inheritance of extrachromosomal rDNA in Physarum polycephalum.多头绒泡菌染色体外核糖体DNA的遗传
Mol Cell Biol. 1983 Apr;3(4):635-42. doi: 10.1128/mcb.3.4.635-642.1983.
4
Complete nucleotide sequence of the 26S rRNA gene of Physarum polycephalum: its significance in gene evolution.多头绒泡菌26S rRNA基因的完整核苷酸序列：其在基因进化中的意义
Proc Natl Acad Sci U S A. 1983 Jun;80(11):3163-7. doi: 10.1073/pnas.80.11.3163.
5
Sequence and hairpin structure of an inverted repeat series at termini of the Physarum extrachromosomal rDNA molecule.黏菌染色体外rDNA分子末端反向重复序列的序列和发夹结构。
Cell. 1983 Apr;32(4):1287-99. doi: 10.1016/0092-8674(83)90310-0.
6
Structure of the central spacer region of extrachromosomal ribosomal DNA in Physarum polycephalum.多头绒泡菌染色体外核糖体DNA中央间隔区的结构
J Mol Biol. 1982 Aug 15;159(3):359-81. doi: 10.1016/0022-2836(82)90289-3.
7
Nucleotide sequence of Physarum polycephalum 5.8S rRNA gene and its flanking regions.多头绒泡菌5.8S核糖体RNA基因及其侧翼区域的核苷酸序列。
Nucleic Acids Res. 1982 Apr 10;10(7):2379-85. doi: 10.1093/nar/10.7.2379.
8
Nucleotide sequence of a ribosomal RNA gene intron from slime mold Physarum polycephalum.多头绒泡菌核糖体RNA基因内含子的核苷酸序列。
Proc Natl Acad Sci U S A. 1981 Mar;78(3):1376-80. doi: 10.1073/pnas.78.3.1376.
9
Terminal repeats of the Drosophila transposable element copia: nucleotide sequence and genomic organization.果蝇转座因子copia的末端重复序列：核苷酸序列与基因组组织
Cell. 1980 Sep;21(2):581-8. doi: 10.1016/0092-8674(80)90496-1.
10
Sequencing end-labeled DNA with base-specific chemical cleavages.通过碱基特异性化学切割对末端标记的DNA进行测序。
Methods Enzymol. 1980;65(1):499-560. doi: 10.1016/s0076-6879(80)65059-9.