N (6)-substituted AMPs inhibit mammalian deoxynucleotide N-hydrolase DNPH1.
N (6)-substituted AMPs inhibit mammalian deoxynucleotide N-hydrolase DNPH1.
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DOI:
10.1371/journal.pone.0080755
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Kaminski PA
中科院分区:
文献类型:
--
作者:
Amiable C;Pochet S;Padilla A;Labesse G;Kaminski PA
The gene dnph1 (or rcl) encodes a hydrolase that cleaves the 2’-deoxyribonucleoside 5’-monophosphate (dNMP) N-glycosidic bond to yield a free nucleobase and 2-deoxyribose 5-phosphate. Recently, the crystal structure of rat DNPH1, a potential target for anti-cancer therapies, suggested that various analogs of AMP may inhibit this enzyme. From this result, we asked whether N 6-substituted AMPs, and among them, cytotoxic cytokinin riboside 5’-monophosphates, may inhibit DNPH1. Here, we characterized the structural and thermodynamic aspects of the interactions of these various analogs with DNPH1. Our results indicate that DNPH1 is inhibited by cytotoxic cytokinins at concentrations that inhibit cell growth.
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DOI:
10.1107/s0907444904019158
发表时间:
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影响因子:
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