Wallace R B, Dube S K, Bonner J
Science. 1977 Dec 16;198(4322):1166-8. doi: 10.1126/science.270812.
Friend leukemia cell chromatin has been fractionated into template active and inactive components. The globin gene sequence is associated with the template active component both prior to and after the cells are induced with dimethyl sulfoxide to synthesize hemoglobin and therefore appears to be in an active configuration in uninduced as well as in induced Friend leukemia cells. In cells which have lost the ability to produce hemoglobin, the globin gene sequence is not associated with the template active fraction of chromatin. These results demonstrate the success of the fractionation procedure.
友伴白血病细胞染色质已被分离成模板活性和非活性组分。在细胞用二甲基亚砜诱导合成血红蛋白之前和之后,珠蛋白基因序列都与模板活性组分相关联,因此在未诱导的以及诱导后的友伴白血病细胞中似乎都处于活性构型。在已丧失产生血红蛋白能力的细胞中,珠蛋白基因序列与染色质的模板活性部分不相关联。这些结果证明了分级分离程序的成功。