Recovery of nucleic acids from immobilized biotin-streptavidin complexes using ammonium hydroxide and applications in MALDI-TOF mass spectrometry

被引：35

作者：

Jurinke, C ^{[1
]}

vandenBoom, D ^{[1
]}

Collazo, V ^{[1
]}

Luchow, A ^{[1
]}

Jacob, A ^{[1
]}

Koster, H ^{[1
]}

机构：

[1] UNIV HAMBURG,DEPT BIOCHEM & MOL BIOL,D-20146 HAMBURG,GERMANY

来源：

ANALYTICAL CHEMISTRY | 1997年 / 69卷 / 05期

关键词：

D O I：

10.1021/ac960879u

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The effects of ammonium hydroxide treatment of complexes consisting of biotinylated nucleic acids and immobilized streptavidin were investigated. It was found that incubation of such complexes with ammonium hydroxide at room temperature leads to denaturation of double-stranded DNA molecules, liberating only the complementary nonbiotinylated strand, whereas incubation at elevated temperatures leads to an efficient dissociation of biotin-streptavidin complexes. The introduced procedure is especially suitable as a purification and conditioning format prior to matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometric analysis of DNA from complex enzymatic reactions. This is demonstrated by analysis of polymerase chain reaction (PCR) and sequencing products.

引用

页码：904 / 910

页数：7

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