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.

另一方面，他们的试管一些“污染物”：一种他们即鉴别的，相当于第一个肌结合的高分子质量的聚合物，后来被称为细丝A。