Solage A, Cedar H
Nucleic Acids Res. 1976 Sep;3(9):2223-31. doi: 10.1093/nar/3.9.2223.
The rate of RNA chain elongation has been measured with DNA and chromatin as template. RNA propagation on chromatin is about 50% of the rate found with DNA. Kinetic experiments demonstrate that the inhibition is not due to interference with the addition of the nucleoside triphosphates. Analysis of the dependence of propagation on the Tm of DNA shows that the chromatin proteins interfere with the translocation of the RNA polymerase along the DNA template.
已以DNA和染色质为模板测量了RNA链的延伸速率。RNA在染色质上的延伸速率约为在DNA上发现的速率的50%。动力学实验表明,这种抑制不是由于干扰核苷三磷酸的添加。对延伸速率与DNA熔解温度依赖性的分析表明,染色质蛋白会干扰RNA聚合酶沿DNA模板的移位。