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Enzymatic synthesis of tritium-labeled beta-NAD and its use in the poly (ADP-ribose) polymerase assay

机译:tri标记的β-NAD的酶促合成及其在聚(ADP-核糖)聚合酶测定中的应用

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摘要

A method of preparation of tritiated #beta#-NAD~+ from (adenine-2,8-~3H)ATP and nicotinamide mononucleotide is suggested. This method is based on baker's yeast (Saccharomyces cerevisiae) enzyme nicotinamide nucleotide adenylyltransferase. Experimental conditions for a nearly complete conversion of labeled ATP to NAD were determined. The tritiated NAD prepared by this method can be used in the quantitative assay of the chromatin enzyme poly (ADP-ribose) polymerase.
机译:提出了一种由(腺嘌呤-2,8-〜3H)ATP和烟酰胺单核苷酸制备#化的#beta#-NAD〜+的方法。该方法基于面包酵母(Saccharomyces cerevisiae)酶烟酰胺核苷酸腺苷酸转移酶。确定了将标记的ATP几乎完全转化为NAD的实验条件。通过这种方法制备的tri化NAD可用于染色质酶聚(ADP-核糖)聚合酶的定量分析。

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