This three-dimensional conformation is held together by the interactions of the amino acids at different parts of the polypeptide chain with each other, and determines the activity of the protein.
这种三维构造通过肽链上不同部位上的氨基酸连在一起，决定了蛋白活性。
The four dimensional space, means that the mankind the substance space( namely three dimensional space ) of the concrete activity, plus one more consciousness measurement ( time factor).
四维空间，是指在人类具体活动的实质空间（即三维空间）之上，再加上一个瞬间取向的知觉量度（即时间因素）。
AIM Structure-Cytotoxic activity relationship and three -dimensional structures of diterpenoid tanshinones from Salvias have been studied.
目的：丹参二萜醌的结构-细胞毒活性的关联与探讨。
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