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  • 1
    Publication Date: 1982-06-25
    Description: Avian myeloblastosis virus is defective in reproductive capacity, requiring a helper virus to provide the viral proteins essential for synthesis of new infectious virus. This virus arose by recombination of the nondefective helper virus and host cellular sequences present within the normal avian genome. These latter sequences are essential for leukemogenic activity. The complete nucleotide sequence of this region is reported. Within the acquired cellular sequences there is an open reading frame of 795 nucleotides starting with the initiation codon ATG (adenine, thymine, guanine) and terminating with the triplet TAG. This open reading frame could code for the putative transforming protein of 265 amino acids with a molecular weight of approximately 30,000.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rushlow, K E -- Lautenberger, J A -- Papas, T S -- Baluda, M A -- Perbal, B -- Chirikjian, J G -- Reddy, E P -- New York, N.Y. -- Science. 1982 Jun 25;216(4553):1421-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6283631" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Avian Leukosis Virus/*genetics ; Avian Myeloblastosis Virus/*genetics ; Avian Sarcoma Viruses/genetics ; Base Sequence ; Cell Transformation, Viral ; Chickens/genetics ; DNA Restriction Enzymes ; Gene Expression Regulation ; *Genes, Viral ; RNA, Viral/analysis ; Viral Proteins/biosynthesis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1984-02-24
    Description: A common cellular sequence was independently transduced by avian carcinoma virus MH2 (v-mht) and murine sarcoma virus (MSV) 3611 (v-raf). Comparison of the nucleotide sequences of v-mht and v-raf revealed a region of homology that extends over 969 nucleotides. The homology between the corresponding amino acids was about 95 percent with only 19 of 323 amino acids being different. With this example, 5 of the 19 known different viral onc genes have been observed in viruses of different taxonomic groups. These data indicate that (i) the number of cellular proto-onc genes is limited because, like other viruses of different taxonomic groups, MH2 and MSV 3611 have transduced the same onc gene-specific sequences from different cell species and (ii) that specific deletion and linkage of the same proto-onc sequences to different viral vector elements affect the oncogenic potential of the resulting viruses. The difference in transformation capabilities of MH2 and MSV 3611 serves as an example.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kan, N C -- Flordellis, C S -- Mark, G E -- Duesberg, P H -- Papas, T S -- CA11426/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1984 Feb 24;223(4638):813-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6320371" target="_blank"〉PubMed〈/a〉
    Keywords: Alpharetrovirus/*genetics ; Animals ; Base Sequence ; Chickens/genetics ; Genes, Viral ; Mice ; *Oncogenes ; Sarcoma Viruses, Murine/*genetics ; Species Specificity ; Transduction, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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