Rotondaro L
Boll Soc Ital Biol Sper. 1981 Dec 15;57(23):2355-60.
We present data on values of adenosine deaminase (ADA) activity in bovine fetus and calf thymus. Between 13 and 17 weeks of fetal life enzyme activity in thymus increases up to levels observed in older fetuses and calf. ADA activity of thymus is characterized by the presence of three enzymic form ("A", "B", "C") which show molecular weights of greater than 1 x 10(6), 310,000 and 55,000, respectively. Forms "B" and "C" were compared. The relative amounts of the three forms in 17 weeks old fetus were quite similar to those observed in calf thymus.
我们展示了关于牛胎儿和小牛胸腺中腺苷脱氨酶（ADA）活性值的数据。在胎儿生命的13至17周期间，胸腺中的酶活性增加至在较大胎儿和小牛中观察到的水平。胸腺的ADA活性的特征是存在三种酶形式（“A”、“B”、“C”），其分子量分别大于1×10⁶、310,000和55,000。对“B”和“C”形式进行了比较。17周龄胎儿中这三种形式的相对量与在小牛胸腺中观察到的非常相似。
