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普通小麦的tRNATyr多基因家族:基因组组织、序列分析以及小麦胚芽提取物中含内含子前体tRNA的成熟

The tRNATyr multigene family of Triticum aestivum: genome organization, sequence analyses and maturation of intron-containing pre-tRNAs in wheat germ extract.

作者信息

Arends S, Kraus J, Beier H

机构信息

Institut für Biochemie, Bayerishche Julius-Maximillans-Universität, Biozentrum, Würzburg, Germany.

出版信息

FEBS Lett. 1996 Apr 22;384(3):222-6. doi: 10.1016/0014-5793(96)00313-4.

DOI:10.1016/0014-5793(96)00313-4
PMID:8617358
Abstract

Southern analysis of Triticum DNA has revealed that nuclear tRNATyr genes are dispersed at a minimum of 16 loci in the genome. We have isolated six independent tRNATyr genes from a Triticum aestivum library in addition to three known members of the Triticum tRNATyr family. Four of the sequenced tRNATyr genes code for Triticum tRNA Tyr and two code for tRNA2Tyr. Three genes encode tRNAsTyr which carry one or two nucleotide substitutions as compared to the conventional genes. The nine Triticum tRNATyr genes possess highly conserved intron sequences ranging in size from 12 to 14 nucleotides. A common secondary intron structure with the 5' and 3' splice site loops separated by five base pairs can be formed by all pre-tRNAs Tyr which are efficiently spliced in the homologous wheat germ extract.

摘要

对小麦DNA的Southern分析表明,核tRNATyr基因在基因组中至少分散于16个位点。除了小麦tRNATyr家族的三个已知成员外,我们还从小麦文库中分离出了六个独立的tRNATyr基因。测序的tRNATyr基因中有四个编码小麦tRNATyr,两个编码tRNA2Tyr。与传统基因相比,三个基因编码的tRNAsTyr携带一个或两个核苷酸替换。九个小麦tRNATyr基因具有高度保守的内含子序列,大小在12至14个核苷酸之间。所有能在同源小麦胚提取物中有效剪接的前体tRNAs Tyr都能形成一种常见的二级内含子结构,其5'和3'剪接位点环由五个碱基对隔开。

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1
The tRNATyr multigene family of Triticum aestivum: genome organization, sequence analyses and maturation of intron-containing pre-tRNAs in wheat germ extract.普通小麦的tRNATyr多基因家族:基因组组织、序列分析以及小麦胚芽提取物中含内含子前体tRNA的成熟
FEBS Lett. 1996 Apr 22;384(3):222-6. doi: 10.1016/0014-5793(96)00313-4.
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引用本文的文献

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2
Translational nonsense codon suppression as indicator for functional pre-tRNA splicing in transformed Arabidopsis hypocotyl-derived calli.翻译无义密码子抑制作为转化的拟南芥下胚轴来源愈伤组织中功能性前体tRNA剪接的指标。
Nucleic Acids Res. 2003 Feb 15;31(4):1197-207. doi: 10.1093/nar/gkg220.
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Splicing of arabidopsis tRNA(Met) precursors in tobacco cell and wheat germ extracts.
拟南芥tRNA(Met)前体在烟草细胞和小麦胚芽提取物中的剪接。
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Plant Mol Biol. 1998 Nov;38(5):689-97. doi: 10.1023/a:1006068303683.
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