Organization and integration sites in the human genome of endogenous retroviral sequences belonging to HERV-E family

Organization and integration sites in the human genome of endogenous retroviral sequences... The present paper reports the characterization of HERV-E endogenous retroviral sequences in the human genome by using three complementary approaches. Firstly, we identified genomic clones containing HERV-E by BLAST screening of human DNA databases by using the entire sequence of a characterized HERV-E clone (M10976) as a query. The genomic structure and integration sites of the HERV-E elements were characterized. Secondly, new integration sites of HERV-E elements were revealed by a retroviral LTR-arbitrary primer-PCR (RELAP-PCR) technique. BLAST analysis of the PCR products identified a subgroup that shows low identity (75%) to the original clone M10976 and slightly higher identity (80%) to a closely related HERV-E (Ac. n. K02166). Finally, we performed FISH mapping, which revealed sites of integration of HERV-E not previously identified at the cytogenetic level. A preliminary analysis of genes mapping in the same bands as HERV-E integration sites was performed: several loci relevant to physiological and/or pathological processes were detected. Our findings may provide clues to identify HERV-E integration sites adjacent to genes with important biological roles. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mammalian Genome Springer Journals

Organization and integration sites in the human genome of endogenous retroviral sequences belonging to HERV-E family

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Publisher
Springer-Verlag
Copyright
Copyright © 2002 by Springer-Verlag New York Inc.
Subject
Life Sciences; Cell Biology; Anatomy; Zoology
ISSN
0938-8990
eISSN
1432-1777
D.O.I.
10.1007/s00335-001-2118-7
Publisher site
See Article on Publisher Site

Abstract

The present paper reports the characterization of HERV-E endogenous retroviral sequences in the human genome by using three complementary approaches. Firstly, we identified genomic clones containing HERV-E by BLAST screening of human DNA databases by using the entire sequence of a characterized HERV-E clone (M10976) as a query. The genomic structure and integration sites of the HERV-E elements were characterized. Secondly, new integration sites of HERV-E elements were revealed by a retroviral LTR-arbitrary primer-PCR (RELAP-PCR) technique. BLAST analysis of the PCR products identified a subgroup that shows low identity (75%) to the original clone M10976 and slightly higher identity (80%) to a closely related HERV-E (Ac. n. K02166). Finally, we performed FISH mapping, which revealed sites of integration of HERV-E not previously identified at the cytogenetic level. A preliminary analysis of genes mapping in the same bands as HERV-E integration sites was performed: several loci relevant to physiological and/or pathological processes were detected. Our findings may provide clues to identify HERV-E integration sites adjacent to genes with important biological roles.

Journal

Mammalian GenomeSpringer Journals

Published: Feb 12, 2014

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