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本文用~(31)P NMR方法研究了MgCl_2对天然DNA溶液构象影响,首次观察到了Mg~(2+)诱导天然DNA由B型向Z型转变。
In this paper, the effect of MgCl_2 on the conformation of natural DNA solution was investigated by ~ (31) P NMR. It was observed for the first time that Mg ~ (2+) -induced natural DNA changed from B-type to Z-type.