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. 1982 Sep;43(3):925–934. doi: 10.1128/jvi.43.3.925-934.1982

Characterization of c-lil, a chicken cellular sequence associated with a stock of B77 avian sarcoma virus.

M Boccara, N Pluquet, J Coll, C Rommens, D Stehelin
PMCID: PMC256203  PMID: 6292471

Abstract

Using biochemical methods, we have shown that a new specific sequence, v-lil, is associated with a given stock of B77 avian sarcoma virus (clone 9). We prepared a DNA complementary to v-lil sequences, using substractive hybridizations, and investigated the properties of this sequence. v-lil has a genetic complexity of ca. 2,000 nucleotides and is not present in various stocks of avian sarcoma virus, avian leukosis virus, or defective leukemia virus. v-lil is not associated with B77 avian sarcoma virus isolated from the original tumor and thus has been acquired by in vitro passage of the virus on chicken embryo fibroblasts. A search for the origin of the v-lil sequence among the DNAs of different avian species has shown that a similar sequence, c-lil, is present in normal chicken DNA (1 to 2 copies per haploid genome). c-lil is not highly conserved but is present in the DNA of all chickens from the genus Gallus. The c-lil sequence is transcribed at a low level (1 to 3 copies per cell) in normal chicken embryo fibroblasts. The biological function, if any, of v-lil or its cellular equivalent has yet to be determined.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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