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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1989 Jun;86(11):3997–4001. doi: 10.1073/pnas.86.11.3997

An element downstream of the cap site is required for transcription of the gene encoding mouse ribosomal protein L32.

R Moura-Neto 1, K P Dudov 1, R P Perry 1
PMCID: PMC287375  PMID: 2726762

Abstract

To identify the elements that regulate transcription of the mouse gene encoding ribosomal protein L32 (rpL32), we transfected monkey kidney (COS or CV-1) cells with mutants bearing progressive 5' deletions or an internal deletion in exon I and measured their transient expression by S1 nuclease protection analysis. When the mutant genes were tested in the vector pi SVHSplac, which contains a short segment of the oriregion of simian virus 40, maximum expression was observed with as little as 36 base pairs of 5' flanking sequence, and the mutant bearing the exon I deletion was expressed very efficiently. However, when the genes were tested in a simple prokaryotic (pUC) vector, the expression was increased 3- to 4-fold by sequences between -36 and -159, and the exon I segment was absolutely required for expression. Gel mobility-shift and methylation interference analyses revealed that a nuclear factor specifically binds to a GGCTGCCATC sequence within this exon I segment. These results, taken together with other recent findings, indicate that the elements involved in transcriptional regulation of the rpL32 gene are distributed over a 200-base-pair region that spans the cap site. The contributions of some of these elements are apparently masked in the presence of simian virus 40 ori-region elements.

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Selected References

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

  1. Bienz M., Pelham H. R. Heat shock regulatory elements function as an inducible enhancer in the Xenopus hsp70 gene and when linked to a heterologous promoter. Cell. 1986 Jun 6;45(5):753–760. doi: 10.1016/0092-8674(86)90789-0. [DOI] [PubMed] [Google Scholar]
  2. Dudov K. P., Perry R. P. Properties of a mouse ribosomal protein promoter. Proc Natl Acad Sci U S A. 1986 Nov;83(22):8545–8549. doi: 10.1073/pnas.83.22.8545. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Dudov K. P., Perry R. P. The gene family encoding the mouse ribosomal protein L32 contains a uniquely expressed intron-containing gene and an unmutated processed gene. Cell. 1984 Jun;37(2):457–468. doi: 10.1016/0092-8674(84)90376-3. [DOI] [PubMed] [Google Scholar]
  4. Schibler U., Marcu K. B., Perry R. P. The synthesis and processing of the messenger RNAs specifying heavy and light chain immunoglobulins in MPC-11 cells. Cell. 1978 Dec;15(4):1495–1509. doi: 10.1016/0092-8674(78)90072-7. [DOI] [PubMed] [Google Scholar]
  5. Siebenlist U., Gilbert W. Contacts between Escherichia coli RNA polymerase and an early promoter of phage T7. Proc Natl Acad Sci U S A. 1980 Jan;77(1):122–126. doi: 10.1073/pnas.77.1.122. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Sompayrac L. M., Danna K. J. Efficient infection of monkey cells with DNA of simian virus 40. Proc Natl Acad Sci U S A. 1981 Dec;78(12):7575–7578. doi: 10.1073/pnas.78.12.7575. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Treisman R., Green M. R., Maniatis T. cis and trans activation of globin gene transcription in transient assays. Proc Natl Acad Sci U S A. 1983 Dec;80(24):7428–7432. doi: 10.1073/pnas.80.24.7428. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Wagner M., Perry R. P. Characterization of the multigene family encoding the mouse S16 ribosomal protein: strategy for distinguishing an expressed gene from its processed pseudogene counterparts by an analysis of total genomic DNA. Mol Cell Biol. 1985 Dec;5(12):3560–3576. doi: 10.1128/mcb.5.12.3560. [DOI] [PMC free article] [PubMed] [Google Scholar]

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