单词：periplasm
periplasm的用法和样例：
例句
- The manganese protein is then transported to the periplasm having first trapped its manganese.而后锰蛋白转移到细胞外周质，开始对锰原子进行捕获。
- Furthermore, the protein isolated in the periplasm can be purified by nickel ion affinity chromatography.而且从周质空间分离的蛋白经过镍住得到了进一步的纯化。
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