Abstract
The c-ski locus extends a minimum of 65 kb in the chicken genome and is expressed as multiple mRNAs resulting from alternative exon usage. Four exons comprising approximately 1.5 kb of cDNA sequence have been mapped within the chicken c-ski locus. However, c-ski cDNAs include almost 3 kb of sequence for which the exon structure was not defined. From our studies using the polymerase chain reaction and templates of RNA and genomic DNA, it is clear that c-ski cDNAs are encoded by a minimum of eight exons. A long 3' untranslated region is contiguous in the genome with the distal portion of the ski open reading frame such that exon 8 is composed of both coding and noncoding sequences. Exons 2 and 3 are separated by more than 25 kb of genomic sequence. In contrast, exons 3 through 8, representing more than half the length of c-ski cDNA sequences, are closely linked within 10 kb in the chicken genome.
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- Barkas A. E., Brodeur D., Stavnezer E. Polyproteins containing a domain encoded by the V-SKI oncogene are located in the nuclei of SKV-transformed cells. Virology. 1986 May;151(1):131–138. doi: 10.1016/0042-6822(86)90111-x. [DOI] [PubMed] [Google Scholar]
- Bingham P. M., Chou T. B., Mims I., Zachar Z. On/off regulation of gene expression at the level of splicing. Trends Genet. 1988 May;4(5):134–138. doi: 10.1016/0168-9525(88)90136-9. [DOI] [PubMed] [Google Scholar]
- Church G. M., Gilbert W. Genomic sequencing. Proc Natl Acad Sci U S A. 1984 Apr;81(7):1991–1995. doi: 10.1073/pnas.81.7.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Colmenares C., Stavnezer E. The ski oncogene induces muscle differentiation in quail embryo cells. Cell. 1989 Oct 20;59(2):293–303. doi: 10.1016/0092-8674(89)90291-2. [DOI] [PubMed] [Google Scholar]
- Colmenares C., Sutrave P., Hughes S. H., Stavnezer E. Activation of the c-ski oncogene by overexpression. J Virol. 1991 Sep;65(9):4929–4935. doi: 10.1128/jvi.65.9.4929-4935.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Colmenares C., Teumer J. K., Stavnezer E. Transformation-defective v-ski induces MyoD and myogenin expression but not myotube formation. Mol Cell Biol. 1991 Feb;11(2):1167–1170. doi: 10.1128/mcb.11.2.1167. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Feinberg A. P., Vogelstein B. "A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity". Addendum. Anal Biochem. 1984 Feb;137(1):266–267. doi: 10.1016/0003-2697(84)90381-6. [DOI] [PubMed] [Google Scholar]
- Goodenow M., Huet T., Saurin W., Kwok S., Sninsky J., Wain-Hobson S. HIV-1 isolates are rapidly evolving quasispecies: evidence for viral mixtures and preferred nucleotide substitutions. J Acquir Immune Defic Syndr. 1989;2(4):344–352. [PubMed] [Google Scholar]
- Li Y., Turck C. M., Teumer J. K., Stavnezer E. Unique sequence, ski, in Sloan-Kettering avian retroviruses with properties of a new cell-derived oncogene. J Virol. 1986 Mar;57(3):1065–1072. doi: 10.1128/jvi.57.3.1065-1072.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Maniatis T. Mechanisms of alternative pre-mRNA splicing. Science. 1991 Jan 4;251(4989):33–34. doi: 10.1126/science.1824726. [DOI] [PubMed] [Google Scholar]
- McKeown M. Regulation of alternative splicing. Genet Eng (N Y) 1990;12:139–181. doi: 10.1007/978-1-4613-0641-2_9. [DOI] [PubMed] [Google Scholar]
- Nagase T., Mizuguchi G., Nomura N., Ishizaki R., Ueno Y., Ishii S. Requirement of protein co-factor for the DNA-binding function of the human ski proto-oncogene product. Nucleic Acids Res. 1990 Jan 25;18(2):337–343. doi: 10.1093/nar/18.2.337. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nomura N., Sasamoto S., Ishii S., Date T., Matsui M., Ishizaki R. Isolation of human cDNA clones of ski and the ski-related gene, sno. Nucleic Acids Res. 1989 Jul 25;17(14):5489–5500. doi: 10.1093/nar/17.14.5489. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shapiro M. B., Senapathy P. RNA splice junctions of different classes of eukaryotes: sequence statistics and functional implications in gene expression. Nucleic Acids Res. 1987 Sep 11;15(17):7155–7174. doi: 10.1093/nar/15.17.7155. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Smith C. W., Patton J. G., Nadal-Ginard B. Alternative splicing in the control of gene expression. Annu Rev Genet. 1989;23:527–577. doi: 10.1146/annurev.ge.23.120189.002523. [DOI] [PubMed] [Google Scholar]
- Stavnezer E., Barkas A. E., Brennan L. A., Brodeur D., Li Y. Transforming Sloan-Kettering viruses generated from the cloned v-ski oncogene by in vitro and in vivo recombinations. J Virol. 1986 Mar;57(3):1073–1083. doi: 10.1128/jvi.57.3.1073-1083.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Stavnezer E., Brodeur D., Brennan L. A. The v-ski oncogene encodes a truncated set of c-ski coding exons with limited sequence and structural relatedness to v-myc. Mol Cell Biol. 1989 Sep;9(9):4038–4045. doi: 10.1128/mcb.9.9.4038. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Stavnezer E., Gerhard D. S., Binari R. C., Balazs I. Generation of transforming viruses in cultures of chicken fibroblasts infected with an avian leukosis virus. J Virol. 1981 Sep;39(3):920–934. doi: 10.1128/jvi.39.3.920-934.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sutrave P., Copeland T. D., Showalter S. D., Hughes S. H. Characterization of chicken c-ski oncogene products expressed by retrovirus vectors. Mol Cell Biol. 1990 Jun;10(6):3137–3144. doi: 10.1128/mcb.10.6.3137. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sutrave P., Hughes S. H. Isolation and characterization of three distinct cDNAs for the chicken c-ski gene. Mol Cell Biol. 1989 Sep;9(9):4046–4051. doi: 10.1128/mcb.9.9.4046. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sutrave P., Kelly A. M., Hughes S. H. ski can cause selective growth of skeletal muscle in transgenic mice. Genes Dev. 1990 Sep;4(9):1462–1472. doi: 10.1101/gad.4.9.1462. [DOI] [PubMed] [Google Scholar]