The peripheral chromosome scaffold, a novel structural component of mitotic chromosomesстатья
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Аннотация:Using an original high-salt extraction protocol, we observed a novel chromosome substructure, referred to as the peripheral chromosome scaffold. This chromosome domain contained the perichromosomal layer proteins pKi-67, B23/nucleophosmin and fibrillarin, but no DNA fragments (i. e., the loop domain bases were not associated with the peripheral scaffold). Modern models of chromosome organization do not predict the existence of a peripheral chromosome scaffold domain, and thus our observations have conceptual implications for understanding chromosome architecture. (c) 2008 International Federation for Cell Biology. Published by Elsevier Ltd. All rights reserved.