Inhibition of T4 polynucleotide kinase activity by phosphorothioate and chimeric oligodeoxynucleotides.
Inhibition of T4 polynucleotide kinase activity by phosphorothioate and chimeric oligodeoxynucleotides.
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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
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发表时间:
1994
期刊:
影响因子:
--
通讯作者:
Krieg,AM
中科院分区:
文献类型:
--
作者:
Teasdale,RM;Matson,SJ;Fisher,E;Krieg,AM
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.
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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
影响因子:
3.6
作者:
Gao,WY;Han,FS;Storm,C;Egan,W;Cheng,YC
通讯作者:
Cheng,YC
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