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In metazoans, nuclear DNA is organized during the interphase in negatively supercoiled loops anchored to a compartment or substructure known as the nuclear matrix. The interactions between DNA and the nuclear matrix (NM) are of higher affinity than those between DNA and chromatin proteins since the last ones do not resist the procedures for extracting the NM. The structural interactions DNA–NM constitute...
During the interphase the nuclear DNA of metazoan cells is organized in supercoiled loops anchored to constituents of a nuclear substructure or compartment known as the nuclear matrix. The stable interactions between DNA and the nuclear matrix (NM) correspond to a set of topological relationships that define a nuclear higher-order structure (NHOS). Current evidence suggests that the NHOS is cell-type-specific...
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