期刊
GENE
卷 343, 期 1, 页码 1-9出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.gene.2004.08.029
关键词
supercoiling; DNA binding; leukemia; architectural chromatin protein; HMG protein
The protein DEK is an abundant and ubiquitous chromatin protein in multicellular organisms (not in yeast). It is expressed in more than a million copies/nucleus of rapidly proliferating mammalian cells. DEK has two DNA binding modules of which one includes a SAP box, a sequence motif that DEK shares with a number of other chromatin proteins. DEK has no apparent affinity to specific DNA sequences, but preferentially binds to superhelical and cruciform DNA, and induces positive supercoils into closed circular DNA. The available evidence strongly suggests that DEK could function as an architectural protein in chromatin comparable to the better known classic architectural chromatin proteins, the high-mobility group or HMG proteins. (C) 2004 Elsevier B.V. All rights reserved.
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