In a sense, substitution matrices code up chemical properties.

在某种意义上，替换矩阵是对化学属性的编码。

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In place of combinations of rare-earth compounds, its unique chemical markers are short stretches of DNA, each with different sequence of genetic code.

用特异化学标记的短链DNA取代了混有稀土的复合物，每一个链有不同顺序的基因编码。

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So, in principle, the protein can record the order of the bases (the chemical “letters” that carry the genetic code) which make up the molecule.

因此，原理上蛋白质能记录下组成DNA分子的碱基序列（一种带着基因编码的化学“字符”）。

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If those results hold up in later studies, that would make Isis' chemical, still known by the code number 301012, more powerful than the two most powerful cholesterol cutters on the market: Crestor, from AstraZeneca, and Vytorin, from Merck and Schering-Plough.

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