Mimicking damaged DNA with a small molecule inhibitor of human UNG2.
Mimicking damaged DNA with a small molecule inhibitor of human UNG2.
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DOI:
10.1093/nar/gkl747
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发表时间:
2006
影响因子:
14.9
通讯作者:
Stivers, James T.
中科院分区:
文献类型:
--
作者:
Krosky, Daniel J.;Bianchet, Mario A.;Seiple, Lauren;Chung, Suhman;Amzel, L. Mario;Stivers, James T.
Human nuclear uracil DNA glycosylase (UNG2) is a cellular DNA repair enzyme that is essential for a number of diverse biological phenomena ranging from antibody diversification to B-cell lymphomas and type-1 human immunodeficiency virus infectivity. During each of these processes, UNG2 recognizes uracilated DNA and excises the uracil base by flipping it into the enzyme active site. We have taken advantage of the extrahelical uracil recognition mechanism to build large small-molecule libraries in which uracil is tethered via flexible alkane linkers to a collection of secondary binding elements. This high-throughput synthesis and screening approach produced two novel uracil-tethered inhibitors of UNG2, the best of which was crystallized with the enzyme. Remarkably, this inhibitor mimics the crucial hydrogen bonding and electrostatic interactions previously observed in UNG2 complexes with damaged uracilated DNA. Thus, the environment of the binding site selects for library ligands that share these DNA features. This is a general approach to rapid discovery of inhibitors of enzymes that recognize extrahelical damaged bases.
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影响因子:
9.2
作者:
Rada, C;Williams, GT;Neuberger, MS
通讯作者:
Neuberger, MS
DOI:
10.1073/pnas.71.9.3649
发表时间:
1974-01-01
影响因子:
11.1
作者:
LINDAHL, T
通讯作者:
LINDAHL, T
影响因子:
2.9
作者:
Drohat, AC;Xiao, GY;Stivers, JT
通讯作者:
Stivers, JT
影响因子:
2.8
作者:
HALGUNSET, J;LAMVIK, T;ESPEVIK, T
通讯作者:
ESPEVIK, T
影响因子:
64.8
作者:
Petersen-Mahrt, SK;Harris, RS;Neuberger, MS
通讯作者:
Neuberger, MS