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Message definition (Insulin analog ) ==Modifications== Before biosynthetic human [[Recombinant DNA|recombinant]] analogues were available, porcine insulin was chemically converted into human insulin. Chemical modifications of the amino acid side chains at the [[N-terminus]] and/or the [[C-terminus]] were made in order to alter the [[ADME]] characteristics of the analogue. Semisynthetic insulins were clinically used for some time based on chemical modification of animal insulins, for example [[Novo Nordisk]] enzymatically converted porcine insulin into semisynthetic 'human' insulin by removing the single amino acid that varies from the human variety, and chemically adding the human amino acid.
変更
生合成ヒト組換え 類似体が利用可能になる前は、ブタインスリンは化学的にヒトインスリンに変換された。アナログのADME 特性を変えるために、N末端 および/またはC末端 のアミノ酸側鎖の化学修飾が行われた。例えば、Novo Nordisk はブタインスリンを酵素的に半合成「ヒト」インスリンに変換し、ヒトとは異なる1つのアミノ酸を除去し、ヒトアミノ酸を化学的に付加した。