The Trend of Amino-Acid Gain is Consistent with a Doublet Code

被引：0

作者：

Finkel, Raphael ^{[1
]}

Kohler, Heinz ^{[2
]}

机构：

[1] Univ Kentucky, Dept Comp Sci, Lexington, KY 40506 USA

[2] Univ Kentucky, Dept Microbiol & Immunol, Lexington, KY 40506 USA

来源：

CURRENT PROTEOMICS | 2010年 / 7卷 / 03期

关键词：

Evolution; genetic code; binary code; code capture; triplet; codons; aminoacids; EVOLUTION;

D O I：

暂无

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The present-day genetic code, while universal, is not the result of a "frozen accident", but has evolved over time. Analysis of amino-acid frequency has recently identified amino acids that were recruited early and late into the genetic code. We use this observation to lend support to a hypothesis that the current quaternary triplet genetic code comes from an earlier quaternary doublet code, and before that from a binary singlet code.

引用

页码：209 / 211

页数：3

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