常见的冠瘿碱有两类:一类是章鱼碱(Octopine),是精氨酸与 丙酮酸结合的化合物;另一类为胭脂碱(Nopaline),是精氨酸与α- 酮戊二酸结合的化合物。
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A high frequency regeneration system in culture has been established. SP promoter was achieved by artificially splicing the sequences derived from the octopine synthase (ocs) and mannopine (mas) genes.
SP启动子来自于章鱼碱和甘露碱合成酶基因,并由人工拼接合成。
参考来源 - SP启动子与内含子对转基因杨树中外源基因表达的影响·2,447,543篇论文数据,部分数据来源于NoteExpress
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