Inhibition of T4 polynucleotide kinase activity by phosphorothioate and chimeric oligodeoxynucleotides.

Inhibition of T4 polynucleotide kinase activity by phosphorothioate and chimeric oligodeoxynucleotides.
复制标题

硫代磷酸酯和嵌合寡脱氧核苷酸对 T4 多核苷酸激酶活性的抑制。

DOI:
10.1089/ard.1994.4.295
复制
发表时间:
1994
期刊:
Antisense research and development
影响因子:
--
通讯作者:
Krieg,AM
Krieg,AM
中科院分区:
--
文献类型:
--
作者:
Teasdale,RM;Matson,SJ;Fisher,E;Krieg,AM

文献摘要

参考文献

被引文献

相似文献

全部和部分修饰的硫代磷酸寡脱氧核苷酸(ODN)被发现直接抑制T4多核苷酸激酶(PNK)的活性,而磷酸二酯ODN没有表现出可检测的抑制。发现这种抑制是长度依赖性的,如28-mer硫代磷酸酯ODN的IC 50为12 nM和8-mer硫代磷酸酯ODN的IC 50为27,000 nM所证明的。抑制作用取决于修饰的核苷酸间键的数量和类型:20-mer硫代磷酸酯ODN的IC 50为21 nM,而具有7个硫代磷酸酯键和相同序列的嵌合ODN没有显示出抑制作用。另一方面,与嵌合二硫代磷酸酯ODN(具有七个二硫代酯键)相同的序列具有580 nM的IC 50。四种不同的嵌合二硫代磷酸ODN显示出明显不同的抑制效力,表明PNK活性的抑制可以是序列特异性的。
Whole and partially modified phosphorothioate oligodeoxynucleotides (ODN) were found to directly inhibit T4 polynucleotide kinase (PNK) activity, while phosphodiester ODN showed no detectable inhibition. This inhibition was found to be length dependent, as demonstrated by a 28-mer phosphorothioate ODN with an IC50of 12 nM, and an 8-mer phosphorothioate ODN with an IC50of 27,000 nM. Inhibition depended on the number and type of modified internucleotide linkages: a 20-mer phosphorothioate ODN had an IC50of 21 nM, while a chimeric ODN with seven phosphorothioate linkages and an identical sequence showed no inhibition. On the other hand, the same sequence as a chimeric phosphorodithioate ODN (with seven dithioate linkages) had an IC50of 580 nM. Four different chimeric phosphorodithioate ODN showed markedly different potencies of inhibition, suggesting that inhibition of PNK activity can be sequence specific.
HL60 细胞中磷酸二酯寡脱氧核苷酸内化的动态。
DOI: --
发表时间: 1993
期刊: Biochemistry
影响因子: 2.9
作者:
C. Stein;J. Tonkinson;L. M. Zhang;L. Yakubov;J. Gervasoni;R. Taub;S. Rotenberg
通讯作者: S. Rotenberg
DOI: --
发表时间: 1992
期刊: Biochemical and Biophysical Research Communications - BBRC
影响因子: --
作者:
G. Maury;A. El Alaoui;F. Morvan;B. Müller;J. Imbach;R. Goody
通讯作者: R. Goody
硫代磷酸酯寡核苷酸是人类 DNA 聚合酶和 RNase H 的抑制剂:对反义技术的影响。
DOI: --
发表时间: 1992
影响因子: 3.6
作者:
Gao,WY;Han,FS;Storm,C;Egan,W;Cheng,YC
通讯作者: Cheng,YC
通过具有确定序列和骨架结构的寡脱氧核苷酸对 p210bcr-abl 酪氨酸激酶自磷酸化的适体抑制。
DOI: --
发表时间: 1994
影响因子: 14.9
作者:
Raymond C. Bergan;Y. Connell;Brigid Fahmy;E. Kyle;Len Neckers
通讯作者: Len Neckers