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Not all polymers are built up from bonding together a single kind of repeating unit. At the other extreme, protein molecules are polyamides in which n amino acid repeat units are bonded together. Aithough we mighe still call n the degree of polymerazation in this case, it is less usefull, since an amino acid unit might be any one of some 20-odd molecules that are found in proteins. In this case the molecular weight itself, rather than the degree of polymerization, is generally used to describe the molecule. When the actual content of individual amino acids is known, it is their sequence that is of special interest to biochemists and molecular biologists. 发自小木虫Android客户端 |
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6楼2017-01-17 21:47:40
18409273756
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2楼2017-01-12 16:30:21
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爱与雨下: 金币+1 2017-01-18 21:52:26
18409273756(fjtony163代发): 金币+5, 代发 2017-02-19 12:37:43
fjtony163: 翻译EPI+1, 代发 2017-02-19 12:37:50
爱与雨下: 金币+1 2017-01-18 21:52:26
18409273756(fjtony163代发): 金币+5, 代发 2017-02-19 12:37:43
fjtony163: 翻译EPI+1, 代发 2017-02-19 12:37:50
| Not all polymers are built up from bonding together a single kind of repeating unit.不是所有的聚合物都是由单一的重复单元结合而成， At the other extreme, protein molecules are polyamides in which n amino acid repeat units are bonded together. 极端的例子就是蛋白质是n个氨基酸重复单元结合而成的多聚物。Aithough we mighe still call n the degree of polymerazation in this case, it is less usefull, since an amino acid unit might be any one of some 20-odd molecules that are found in proteins.尽管我们仍然将此处的n称作聚合度，但由于氨基酸单元可能是20中常见氨基酸的任意一种，n已经不太有用。 In this case the molecular weight itself, rather than the degree of polymerization, is generally used to describe the molecule. 这种情况下，通常更多采用房子质量而非聚合度去描述蛋白分子。When the actual content of individual amino acids is known, it is their sequence that is of special interest to biochemists and molecular biologists.当单一氨基酸的实际含量已知时，生物化学家和分子生物学家特别关注的就是氨基酸的排列顺序。 |
3楼2017-01-14 21:26:54
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4楼2017-01-14 21:27:24