A POTATO MITOCHONDRIAL ISOLEUCINE TRANSFER-RNA IS CODED FOR BY A MITOCHONDRIAL GENE POSSESSING A METHIONINE ANTICODON

被引：72

作者：

WEBER, F ^{[1
]}

DIETRICH, A ^{[1
]}

WEIL, JH ^{[1
]}

MARECHALDROUARD, L ^{[1
]}

机构：

[1] UNIV STRASBOURG 1,CNRS,INST BIOL MOLEC PLANTES,12 RUE GEN ZIMMER,F-67084 STRASBOURG,FRANCE

来源：

NUCLEIC ACIDS RESEARCH | 1990年 / 18卷 / 17期

关键词：

D O I：

10.1093/nar/18.17.5027

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The nucleotide sequence of a potato mitochondrial tRNAlle has been determined. This tRNA has a lysidine-like minor nucleotide in the first position of the ariticodon (position 34). The corresponding mitochondrial gene has been cloned and sequenced. This gene has a CAT anticodon which corresponds to methionine. The C residue in the anticodon must therefore be post-transcriptionally modified. The mature tRNA has isoleucine-accepting activity but no methionine-accepting activity. This is the first report showing that in plant mitochondria a post-transcriptional modification could change the amino-acid specificity of a tRNA, as compared to that of the corresponding gene. © 1990 Oxford University Press.

引用

页码：5027 / 5030

页数：4

共 50 条

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