Enzymatic synthesis of 8-vinyl- and 8-styryl-2'-deoxyguanosine modified DNA--novel fluorescent molecular probes.

Enzymatic synthesis of 8-vinyl- and 8-styryl-2'-deoxyguanosine modified DNA--novel fluorescent molecular probes.
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酶法合成8-乙烯基-和8-苯乙烯基-2-脱氧鸟苷修饰的DNA--新型荧光分子探针

DOI:
10.1016/j.bmcl.2012.03.056
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发表时间:
2012
影响因子:
2.7
通讯作者:
A. Marx
A. Marx
中科院分区:
医学4区
文献类型:
--
作者:
B. Holzberger;J. Strohmeier;V. Siegmund;U. Diederichsen;A. Marx

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天然核碱基的荧光类似物被广泛用作研究DNA杂交和拓扑结构的分子探针。本研究合成了鸟苷类似物8-乙烯基和8-苯乙烯基-2 ′-脱氧鸟苷,并将其转化为相应的5′-三磷酸。这些C8修饰的核苷酸被各种DNA聚合酶加工以产生荧光DNA。而8-苯乙烯基修饰的核苷酸在一定程度上阻碍了DNA合成,8-乙烯基-2 ′-脱氧鸟苷被DNA聚合酶加工,强调了作为荧光光谱学的分子探针的广泛适用性。
Fluorescent analogs of the natural nucleobases are widely used as molecular probes for investigating DNA hybridization and topology. In this study the guanosine analogs 8-vinyl- and 8-styryl-2′-deoxyguanosine were synthesized and converted into the corresponding 5′-triphosphates. These C8 modified nucleotides were processed by various DNA polymerases to create fluorescent DNA. Whereas the 8-styryl modified nucleotide somewhat hampers DNA synthesis 8-vinyl-2′-deoxyguanosine is processed by DNA polymerases emphasizing the broad applicability as a molecular probe for fluorescence spectroscopy.
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期刊:
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