The puzzling origin of the genetic code

被引：13

作者：

Cedergren, R

Miramontes, P

机构：

[1] Département de Biochimie, Université de Montréal, Montréal

来源：

TRENDS IN BIOCHEMICAL SCIENCES | 1996年 / 21卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0968-0004(96)80014-4

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：

Recent results add to the mystery of the origin of the genetic code. In spite of early doubts, RNA can discriminate between hydrophobic amino acids under certain contexts. Moreover, codon reassignment, which has taken place in several organisms and mitochondria, is not a random process. Finally, phylogenies of some aminoacyl-tRNA synthetases suggest that the entire code was not completely assigned at the time of the divergence of bacteria from nucleated cells.

引用

页码：199 / 200

页数：2

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