Chromatin structure: a property of the higher structures of chromatin and in the time course of its formation during chromatin replication.

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RESUMO

The action of a number of enzymes and metals on one nuclear preparation were interpreted in terms of the existence of a fragile but highly DNAase-I resistant feature of chromatin superstructure. The generation of this DNAase-I resistance feature of chromatin was then followed during normal DNA synthesis in the regenerating rat liver by following the disappearance of a transitory DNAase-I susceptible state. This transitory, DNAase-I susceptible state appears to be extremely similar to the post-synthetic, DNAase-I susceptible state that has been described in He La32.

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