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A simple method for the preparation of [beta-32P]purine nucleoside triphosphase
Nucleic Acids Research
|October 1, 1977
Abstract:
A rapid, simple and inexpensive procedure is described for the preparation of purine ribo-and deoxyribonucleoside triphosphates specifically and highly radiolabeled with [32P]phosphate in the beta position. The method involves two successive enzymatic reactions: conversion of donor [gamma-32P]ATP in the presence of an excess of acceptor 5'-mononucleotide to the 5'-diphosphates by myokinase or guanosine 5'-monophosphate kinase followed by phosphorylation with pyruvate kinase to yield 5'-triphosphates.