Abstract
The expression of the rat skeletal myosin light-chain 2 gene in two transgenic strains was tissue specific and stage specific. However, the temporal regulation during development of the transgene was different from that of the endogenous gene. Surprisingly, in one strain, the expression of the transgene was associated with a significant down-regulation of the endogenous gene. The possible mechanisms to account for the suppression of the endogenous gene and the potential implications of this suppression are discussed.
Full text
PDF



Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Adams J. M., Harris A. W., Pinkert C. A., Corcoran L. M., Alexander W. S., Cory S., Palmiter R. D., Brinster R. L. The c-myc oncogene driven by immunoglobulin enhancers induces lymphoid malignancy in transgenic mice. Nature. 1985 Dec 12;318(6046):533–538. doi: 10.1038/318533a0. [DOI] [PubMed] [Google Scholar]
- Alexander W. S., Schrader J. W., Adams J. M. Expression of the c-myc oncogene under control of an immunoglobulin enhancer in E mu-myc transgenic mice. Mol Cell Biol. 1987 Apr;7(4):1436–1444. doi: 10.1128/mcb.7.4.1436. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Auffray C., Rougeon F. Purification of mouse immunoglobulin heavy-chain messenger RNAs from total myeloma tumor RNA. Eur J Biochem. 1980 Jun;107(2):303–314. doi: 10.1111/j.1432-1033.1980.tb06030.x. [DOI] [PubMed] [Google Scholar]
- Bader D., Masaki T., Fischman D. A. Immunochemical analysis of myosin heavy chain during avian myogenesis in vivo and in vitro. J Cell Biol. 1982 Dec;95(3):763–770. doi: 10.1083/jcb.95.3.763. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bandman E., Matsuda R., Strohman R. C. Developmental appearance of myosin heavy and light chain isoforms in vivo and in vitro in chicken skeletal muscle. Dev Biol. 1982 Oct;93(2):508–518. doi: 10.1016/0012-1606(82)90138-5. [DOI] [PubMed] [Google Scholar]
- Bernard O., Cory S., Gerondakis S., Webb E., Adams J. M. Sequence of the murine and human cellular myc oncogenes and two modes of myc transcription resulting from chromosome translocation in B lymphoid tumours. EMBO J. 1983;2(12):2375–2383. doi: 10.1002/j.1460-2075.1983.tb01749.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Melloul D., Aloni B., Calvo J., Yaffe D., Nudel U. Developmentally regulated expression of chimeric genes containing muscle actin DNA sequences in transfected myogenic cells. EMBO J. 1984 May;3(5):983–990. doi: 10.1002/j.1460-2075.1984.tb01917.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nishikura K., Erikson J., ar-Rushdi A., Huebner K., Croce C. M. The translocated c-myc oncogene of Raji Burkitt lymphoma cells is not expressed in human lymphoblastoid cells. Proc Natl Acad Sci U S A. 1985 May;82(9):2900–2904. doi: 10.1073/pnas.82.9.2900. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nudel U., Calvo J. M., Shani M., Levy Z. The nucleotide sequence of a rat myosin light chain 2 gene. Nucleic Acids Res. 1984 Sep 25;12(18):7175–7186. doi: 10.1093/nar/12.18.7175. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shani M. Tissue-specific and developmentally regulated expression of a chimeric actin-globin gene in transgenic mice. Mol Cell Biol. 1986 Jul;6(7):2624–2631. doi: 10.1128/mcb.6.7.2624. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shani M. Tissue-specific expression of rat myosin light-chain 2 gene in transgenic mice. Nature. 1985 Mar 21;314(6008):283–286. doi: 10.1038/314283a0. [DOI] [PubMed] [Google Scholar]
- Silberstein L., Webster S. G., Travis M., Blau H. M. Developmental progression of myosin gene expression in cultured muscle cells. Cell. 1986 Sep 26;46(7):1075–1081. doi: 10.1016/0092-8674(86)90707-5. [DOI] [PubMed] [Google Scholar]
- Weydert A., Barton P., Harris A. J., Pinset C., Buckingham M. Developmental pattern of mouse skeletal myosin heavy chain gene transcripts in vivo and in vitro. Cell. 1987 Apr 10;49(1):121–129. doi: 10.1016/0092-8674(87)90762-8. [DOI] [PubMed] [Google Scholar]
- Whalen R. G., Sell S. M., Butler-Browne G. S., Schwartz K., Bouveret P., Pinset-Härstöm I. Three myosin heavy-chain isozymes appear sequentially in rat muscle development. Nature. 1981 Aug 27;292(5826):805–809. doi: 10.1038/292805a0. [DOI] [PubMed] [Google Scholar]



