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[遗传密码的意义:前生物进化阶段的重构]

[The meaning of the genetic code: reconstruction of the stage of prebiologic evolution].

作者信息

Sukhodolets V V

出版信息

Genetika. 1985 Oct;21(10):1589-600.

PMID:4065556
Abstract

According to a certain order in sets of the two first codon bases, 20 common amino acids can be divided into 5 families each containing 4 amino acids; the corresponding order in the distribution of codon bases can be easily detected, if common amino acids are distributed for the numbers of hydrogen atoms per molecule (Sukhodolets, 1980). In the present paper, the order in the distribution of codon bases is explained on the basis of the hypothesis claiming the prebiological existence of crystalline associates composed of amino acids and bases as free molecules. In these heterogeneous crystalline associates amino acids were analogs to the base douplets and the arrangement of molecules followed a certain rule, namely: 40 protons per molecular complex forming a standard structural compartment. It is proposed that the crystalline associates existed as lyotropic liquid crystals with hydrocarbons as solvent. The genetical code allows to discover two different original crystallization types for bases and amino acids. Therefore, the life possibly originates from combining in the same structure different crystallization patterns, which resulted in formation of a finite crystalline associate.

摘要

按照前两个密码子碱基的特定顺序,20种常见氨基酸可分为5个家族,每个家族包含4种氨基酸;如果根据每个分子中氢原子的数量对常见氨基酸进行分布,那么密码子碱基分布的相应顺序就很容易被检测到(苏霍多列茨,1980年)。在本文中,密码子碱基分布的顺序是基于这样一种假设来解释的,即声称由氨基酸和碱基作为自由分子组成的晶体缔合体在生命起源前就已存在。在这些异质晶体缔合体中,氨基酸类似于碱基对,分子排列遵循一定规则,即:每个分子复合物有40个质子形成一个标准结构区室。有人提出,晶体缔合体以烃类为溶剂的溶致液晶形式存在。遗传密码使得能够发现碱基和氨基酸的两种不同的原始结晶类型。因此,生命可能起源于将不同的结晶模式组合在同一结构中,从而形成有限的晶体缔合体。

相似文献

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[The meaning of the genetic code: reconstruction of the stage of prebiologic evolution].[遗传密码的意义:前生物进化阶段的重构]
Genetika. 1985 Oct;21(10):1589-600.
2
[Evolutionary changes in the genetic code, predictable on basis of the hypothesis of physical predetermination of the structure of codon bases].[基于密码子碱基结构物理预定假说可预测的遗传密码进化变化]
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