Carroll R B, Hager L, Dulbecco R
Proc Natl Acad Sci U S A. 1974 Sep;71(9):3754-7. doi: 10.1073/pnas.71.9.3754.
The T antigen of simian virus 40, which may play a role in the control of viral DNA replication, is recovered from nuclei of cells transformed by simian virus 40 in several forms sedimenting at different rates. The large molecular weight forms are converted to the smallest (5 S) form by high salt, suggesting that they differ in the degree of aggregation. All the forms of the antigen bind efficiently to double-stranded DNA-cellulose columns at pH 6.2 and low salt, and elute in two fractions: one at pH 8.0 and low salt, the other at pH 8.0 and high salt. The antigen has little affinity for single-stranded DNA.
猴病毒40(Simian virus 40)的T抗原可能在病毒DNA复制的控制中发挥作用,它以几种沉降速率不同的形式从被猴病毒40转化的细胞核中分离出来。高分子量形式在高盐条件下会转化为最小的(5S)形式,这表明它们在聚集程度上存在差异。在pH 6.2和低盐条件下,该抗原的所有形式都能有效地结合到双链DNA纤维素柱上,并在两个组分中洗脱:一个在pH 8.0和低盐条件下,另一个在pH 8.0和高盐条件下。该抗原对单链DNA几乎没有亲和力。