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Chromosomal loop anchorage sites appear to be evolutionarily conserved
Author(s) -
Cockerill Peter N.,
Garrard William T.
Publication year - 1986
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(86)81377-1
Subject(s) - loop (graph theory) , genetics , biology , conserved sequence , evolutionary biology , microbiology and biotechnology , gene , base sequence , mathematics , combinatorics
We have previously identified a class of DNA sequence elements, termed matrix association regions (MARs), which specifically bind to nuclear matrices in vitro and are believed to be at the bases of chromosomal loops in vivo [1]. Here we demonstrate that nuclear matrices prepared from the yeast Saccharomyces cerevisiae will specifically bind an MAR sequence derived from the mouse kappa light chain immunoglobulin gene. This suggests that both MAR sequences and their binding sites have been strongly evolutionarily conserved.