Instead, their test tube was filled with some "contaminant": A high molecular weight polymer they would soon identify as the first actin-binding protein, later called filamin A.

另方面，他们的试管充满了些“污染物”：种他们即鉴别的，相当于第个肌动蛋白结合蛋白的高分的聚合物，后来被称为细丝蛋白A。