Status of the nuclear matrix in mature and embryonic chick erythrocyte nuclei |
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Authors: | R E Lafond C L Woodcock |
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Institution: | Department of Zoology, University of Massachusetts, Amherst, MA 01003, USA |
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Abstract: | The adult chicken erythrocyte nucleus was found to lack an internal nuclear matrix: even milder extraction procedures resulted in the production of empty shells of pore complex-lamina together with loose aggregates of core histone. In contrast, rat liver nuclei showed a typical intranuclear salt-resistant skeleton. These results show that an internal matrix is not an obligatory nuclear component, and is not required for the spatial organization of chromatin. 5-day-old embryonic erythrocytes did, however, contain an interchromatinic nuclear matrix, suggesting a correlation between the presence of matrix structures, and nuclear 'activity'. |
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