Unique features of animal mitochondrial translation systems
Unique features of animal mitochondrial translation systems
复制标题
动物线粒体翻译系统的独特功能
DOI:
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Kimitsuna Watanabe
中科院分区:
文献类型:
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作者:
Kimitsuna Watanabe
In animal mitochondria, several codons are non-universal and their meanings differ depending on the species. In addition, the tRNA structures that decipher codons are sometimes unusually truncated. These features seem to be related to the shortening of mitochondrial (mt) genomes, which occurred during the evolution of mitochondria. These organelles probably originated from the endosymbiosis of an aerobic eubacterium into an ancestral eukaryote. It is plausible that these events brought about the various characteristic features of animal mt translation systems, such as genetic code variations, unusually truncated tRNA and rRNA structures, unilateral tRNA recognition mechanisms by aminoacyl-tRNA synthetases, elongation factors and ribosomes, and compensation for RNA deficits by enlarged proteins. In this article, we discuss molecular mechanisms for these phenomena. Finally, we describe human mt diseases that are caused by modification defects in mt tRNAs.
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影响因子:
14.9
作者:
SAMPSON, JR;SAKS, ME
通讯作者:
SAKS, ME
DOI:
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发表时间:
1982
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Matthews,DE;Hessler,RA;Denslow,ND;Edwards,JS;O'Brien,TW
通讯作者:
O'Brien,TW
DOI:
--
发表时间:
1985
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Eberly,SL;Locklear,V;Spremulli,LL
通讯作者:
Spremulli,LL
影响因子:
56.9
作者:
Ban, N;Nissen, P;Steitz, TA
通讯作者:
Steitz, TA
影响因子:
4.5
作者:
Ashraf, SS;Sochacka, E;Agris, PF
通讯作者:
Agris, PF