| Identification of a group of Mus dunni endogenous virus-like endogenous retroviruses from the C57BL/6J mouse genome: proviral genomes, strain distribution, expression characteristics, and genomic integration profile. | |
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MedLine Citation:
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PMID: 23197326 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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About 10 % of the mouse genome is occupied by sequences associated with endogenous retroviruses (ERVs). However, a comprehensive profile of the mouse ERVs and related elements has not been established yet. In this study, we identified a group of ERVs from the mouse genome and characterized their biological properties. Using a custom ERV mining protocol, 191 ERVs (159 loci reported previously and 32 new loci), tentatively named Mus dunni endogenous virus (MDEV)-like ERVs (MDL-ERVs), were mapped on the C57BL/6J mouse genome. Seven of them retained putative full coding potentials for three retroviral polypeptides (gag, pol, and env). Among the 57 mouse strains examined, all but the Mus pahari/Ei strain had PCR amplicons corresponding to a conserved MDL-ERV region. Interestingly, the Mus caroli/EiJ's amplicon was somewhat larger than the others, coinciding with a substantial phylogenetic distance between the MDL-ERV populations of M. caroli/EiJ and C57BL/6J strains. MDL-ERVs were highly expressed in the lung, spleen, and thymus of C57BL/6J mice compared to the brain, heart, kidney, and liver. Seven MDL-ERVs were mapped in the introns of six annotated genes. Of interest, some MDL-ERVs were mapped periodically on three clusters in chromosome X. The finding that these MDL-ERVs were one of several types of retroelements, which form mosaic-repeat units of tandem arrays, suggests that the formation of the mosaic-repeat unit preceded the tandem arrangement event. Further studies are warranted to understand the biological roles of MDL-ERVs in both normal and pathologic conditions. |
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Authors:
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Kang-Hoon Lee; Ri-Na You; David G Greenhalgh; Kiho Cho |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-11-30 |
Journal Detail:
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Title: Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology Volume: - ISSN: 1573-6849 ISO Abbreviation: Chromosome Res. Publication Date: 2012 Nov |
Date Detail:
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Created Date: 2012-11-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9313452 Medline TA: Chromosome Res Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Surgery, University of California, Davis and Shriners Hospitals for Children Northern California, 2425 Stockton Blvd., Sacramento, CA, 95817, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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