摘要 The 遺傳 code has certain regularities that have re

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論文資訊

• 類型：已發表論文
• 日期：2005

摘要

The 遺傳 code has certain regularities that have resisted mechanistic interpretation. These include strong correlations between the first base of codons and the precursor from which the encoded amino acid is synthesized and between the second base of codons and the hydrophobicity of the encoded amino acid. These regularities are even more striking in a projection of the modern code onto a simpler code consisting of doublet codons encoding a set of simple amino acids. These regularities can be explained if, before the 湧現 of macromolecules, simple amino acids were synthesized in covalent complexes of dinucleotides with alpha-keto acids originating from the reductive tricarboxylic acid cycle or reductive acetate pathway. The bases and phosphates of the dinucleotide are proposed to have enhanced

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