Nucleic Acids Research, Vol 26, Issue 18 4168-4172, Copyright © 1998 by Oxford University Press
CC Lopez and JE Edstrom
Short mobile elements are present in different recombined forms as
interspersed GC-rich islands between AT rich centromeric 155 bp tandem
repeats in the dipteran Chironomus pallidivittatus . The basic element is
80 bp long, has a pronounced invert repeat structure and contains a 17 bp
segment similar to the CENP-B box in mammals. The element inserts into a
specific site of the 155 bp repeat in a defined orientation surrounded by 2
bp direct repeats. The total number per genome of the main variant is
<20. Elements can be present in all centromeres from C.pallidivittatus
and the sibling species Chironomus tentans with pronounced differences in
distribution within and between species.
ARTICLES
Interspersed centromeric element with a CENP-B box-like motif in Chironomus pallidivittatus
Department of Genetics, Lund University, Solvegatan 29, S-22362 Lund, Sweden.
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