Molecular Biology and Evolution, Vol 3, 179-190, Copyright © 1986 by Society for Molecular Biology and Evolution
GW Demers, K Brech and RC Hardison
Determination of the DNA sequence of a cluster of repetitive elements
located 3' to the rabbit beta-1 globin gene shows that previously
identified B, E, and D repeats are linked to form a long repeat. The B and
E regions are homologous to the L1 long interspersed repeats of primates
and rodents. Thus L1 repeats are widely dispersed in several different
mammalian orders. The sequence similarity among L1 repeats from three
species is limited to a long segment that contains extensive open reading
frames. This conserved region is followed by a highly divergent segment
that corresponds to a 3' untranslated region. The conservation of sequences
in the open-reading-frame region coupled with the divergence of the
untranslated region supports the hypothesis that the L1 repeats are derived
from transcripts of a functional gene that encodes a protein.
ORIGINAL ARTICLE
Long interspersed L1 repeats in rabbit DNA are homologous to L1 repeats of rodents and primates in an open-reading-frame region
Department of Molecular and Cell Biology, Pennsylvania State University, University Park 16802.
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