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- Document 0386
- DOCN M9620386
- TI Frequent disruption of the Nf1 gene by a novel murine AIDS virus-related
- provirus in BXH-2 murine myeloid lymphomas.
- DT 9602
- AU Cho BC; Shaughnessy JD Jr; Largaespada DA; Bedigian HG; Buchberg AM;
- Jenkins NA; Copeland NG; Mammalian Genetics Laboratory, ABL-Basic
- Research Program,; NCI-Frederick Cancer Research and Development Center,
- Maryland; 21702, USA.
- SO J Virol. 1995 Nov;69(11):7138-46. Unique Identifier : AIDSLINE
- MED/96013817
- AB Evi-2, a common site of viral integration in BXH-2 myeloid lymphomas, is
- located within a large intron of the Nf1 tumor suppressor gene. Viral
- integration at Evi-2 appears to induce disease by disrupting normal Nf1
- expression. During our attempts to characterize the nature of the
- proviruses located at Evi-2, we found that approximately half of the
- proviruses were defective nonecotropic proviruses (A. M. Buchberg, H. G.
- Bedigian, N. A. Jenkins, and N. G. Copeland, Mol. Cell. Biol.
- 10:4658-4666, 1990). This was surprising, since most proviruses
- characterized at other BXH-2 common integration sites are full-length
- ecotropic viruses. In the studies described here, we found that this
- defective provirus carries two large deletions, one in pol and one in
- env, and is structurally related to another murine retrovirus, the
- murine AIDS retrovirus. By using oligonucleotide probes specific for
- this defective provirus, designated MRV, we showed that MRV-related
- proviruses are carried as endogenous germ line proviruses in most inbred
- strains. In addition, we identified the endogenous MRV provirus that
- gives rise to the defective proviruses identified at Evi-2. We present a
- model that accounts for the positive selection of MRV proviruses at
- Evi-2, which may allow selective identification of common viral
- integration sites harboring tumor suppressor genes.
- DE Acquired Immunodeficiency Syndrome/GENETICS Amino Acid Sequence Animal
- Base Sequence Blotting, Southern *Chromosome Mapping Comparative
- Study DNA Primers DNA, Neoplasm/ANALYSIS/GENETICS DNA,
- Viral/ANALYSIS/GENETICS Gene Library Gene Products,
- gag/CHEMISTRY/GENETICS *Genes, gag *Genes, Neurofibromatosis 1
- Lymphoma/*GENETICS/*VIROLOGY Mice Mice, Inbred Strains Molecular
- Sequence Data Murine Acquired Immunodeficiency Syndrome/*VIROLOGY
- Oligonucleotide Probes Proviruses/*GENETICS/ISOLATION & PURIF
- Repetitive Sequences, Nucleic Acid Retroviridae/*GENETICS/ISOLATION &
- PURIF Sequence Homology, Amino Acid Support, Non-U.S. Gov't Support,
- U.S. Gov't, P.H.S. JOURNAL ARTICLE
-
- SOURCE: National Library of Medicine. NOTICE: This material may be
- protected by Copyright Law (Title 17, U.S.Code).
-
-