本文研究了同源胰岛素间氨基酸取代的规律性。
In this article the regularity of amino acid replacement among homologues insulins was explored.
分子演化被认为在很大程度上是由稍微有害的氨基酸取代的传播驱动的。
If protein evolution is due in large part to slightly deleterious amino acid substitutions, then the rate of evolution should be greater in proteins that contribute less to individual fitness.
在所有已存在的生命形式中，细胞的蛋白质合成机制通过读取代表核苷酸的四个DNA化学“字母”来合成氨基酸链。
In all existing life forms, the cell's protein-making machinery reads the four chemical "letters" of DNA - called nucleotides - in triplets to make chains of amino acids.
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