5S RNA gene specific transcription factor (TFIIIA) changes the linking number of the DNA.
5S RNA gene specific transcription factor (TFIIIA) changes the linking number of the DNA.
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5S RNA 基因特异性转录因子 (TFIIIA) 改变 DNA 的连接数。
DOI:
10.1016/0006-291x(86)90362-1
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发表时间:
1986
影响因子:
3.1
通讯作者:
B. Shastry
中科院分区:
文献类型:
--
作者:
B. Shastry
The purified 5S gene specific transcription factor A (TFIIIA), when incubated with the relaxed 5S gene in the presence of topoisomerase I alters the conformation of the DNA, resulting in a change in the linking number. This interaction introduces a change of one bp per TFIIIA binding site at a low concentration of DNA to protein (1:2) which increases to an extent of 0.9 turns (9 bp) per TFIIIA binding site at a higher protein concentration (1:12). These analyses support the notion that the binding of TFIIIA to the 5S DNA introduces a minimal change in the topology of circular DNA molecules.