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gaoshihua

银虫 (小有名气)

[求助] 求有机方面翻译一段,谢谢

Peptide motifs are present in many biologically active molecules,and many peptides are drugs (45, 46). The biological properties of peptides can be tuned by introducing bioisosteric modifications on them. The resulting molecules are known as peptidomimetics, and they usually present improved stability,bioavailability, and selectivity toward a particular target. An important example of these bioisosteric modifications is the replacement of an amide bond by a triazole ring, which introduces rigidity to the molecule and mimics either the cis- or the trans-like
configuration of the amide bond (47, 48).
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zou-yanhua

金虫 (小有名气)

【答案】应助回帖

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爱与雨下(金币+1): !!~~ 2011-08-26 10:32:16
gaoshihua(金币+15, 翻译EPI+1): 谢谢,还有 一个没人翻译能不能帮一下 2011-08-26 18:52:31
缩氨酸片段存在于很多有生物活性的分子中,而且很多缩氨酸是药物(45,46)。通过对缩氨酸进行生物立体异构的修饰,其生物学性质能够被改变。修饰后的分子被称为模拟缩氨酸,它们通常有良好的稳定性,生物活性和对特定目标物的选择性。这些生物立体修饰的一个很重要的例子就是将酰胺键换成三唑环,从而使使分子具有了刚性,模拟了酰胺键的顺式或反式构象(47,48)。
2楼2011-08-26 10:01:58
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