后来发现它是一种与胰岛素样生长因子相关的锌指超家族中的金属螯合蛋白酶。
And then it was found that PAPP-A was a zinc-binding matrix metalloproteinase associated with insulin-like growth factor.
考察了螯合型弱阳离子交换剂与金属离子的作用，研究了蛋白质在金属螯合色谱中的保留机理。
The interaction between chelating weak cation-exchanger and metal ions was examined. The retention mechanism of protein in metal chelating chromatography was explored.
改变色谱条件可改变金属螯合配体和蛋白质间的作用力，提高金属螯合色谱的选择性。
The interaction between the metal chelate ligand and proteins and the selectivity of metal chelate chromatography can be changed through changing chromatographic conditions.
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