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. 1989 May;9(5):1940–1945. doi: 10.1128/mcb.9.5.1940

Primase p49 mRNA expression is serum stimulated but does not vary with the cell cycle.

B Y Tseng 1, C E Prussak 1, M T Almazan 1
PMCID: PMC362985  PMID: 2747641

Abstract

Expression of the small-subunit p49 mRNA of primase, the enzyme that synthesizes oligoribonucleotides for initiation of DNA replication, was examined in mouse cells stimulated to proliferate by serum and in growing cells. The level of p49 mRNA increased approximately 10-fold after serum stimulation and preceded synthesis of DNA and histone H3 mRNA by several hours. Expression of p49 mRNA was not sensitive to inhibition by low concentrations of cycloheximide, which suggested that the increase in mRNA occurred before the restriction point control for cell cycle progression described for mammalian cells and was not under its control. p49 mRNA levels were not coupled to DNA synthesis, as observed for the replication-dependent histone genes, since hydroxyurea or aphidicolin had no effect on p49 mRNA levels when added before or during S phase. These inhibitors did have an effect, however, on the stability of p49 mRNA and increased the half-life from 3.5 h to about 20 h, which suggested an interdependence of p49 mRNA degradation and DNA synthesis. When growing cells were examined after separation by centrifugal elutriation, little difference was detected for p49 mRNA levels in different phases of the cell cycle. This was also observed when elutriated G1 cells were allowed to continue growth and then were blocked in M phase with colcemid. Only a small decrease in p49 mRNA occurred, whereas H3 mRNA rapidly decreased, when cells entered G2/M. These results indicate that the level of primase p49 mRNA is not cell cycle regulated but is present constitutively in proliferating cells.

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Selected References

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

  1. Adamson E. D., Woodland H. R. Histone synthesis in early amphibian development: histone and DNA syntheses are not co-ordinated. J Mol Biol. 1974 Sep 15;88(2):263–285. doi: 10.1016/0022-2836(74)90481-1. [DOI] [PubMed] [Google Scholar]
  2. Almendral J. M., Sommer D., Macdonald-Bravo H., Burckhardt J., Perera J., Bravo R. Complexity of the early genetic response to growth factors in mouse fibroblasts. Mol Cell Biol. 1988 May;8(5):2140–2148. doi: 10.1128/mcb.8.5.2140. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Alterman R. B., Ganguly S., Schulze D. H., Marzluff W. F., Schildkraut C. L., Skoultchi A. I. Cell cycle regulation of mouse H3 histone mRNA metabolism. Mol Cell Biol. 1984 Jan;4(1):123–132. doi: 10.1128/mcb.4.1.123. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Artishevsky A., Grafsky A., Lee A. S. Isolation of a mammalian sequence capable of conferring cell cycle regulation to a heterologous gene. Science. 1985 Nov 29;230(4729):1061–1063. doi: 10.1126/science.4059922. [DOI] [PubMed] [Google Scholar]
  5. Aviv H., Leder P. Purification of biologically active globin messenger RNA by chromatography on oligothymidylic acid-cellulose. Proc Natl Acad Sci U S A. 1972 Jun;69(6):1408–1412. doi: 10.1073/pnas.69.6.1408. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Brown E. H., Schildkraut C. L. Perturbation of growth and differentiation of Friend murine erythroleukemia cells by 5-bromodeoxyuridine incorporation in early S phase. J Cell Physiol. 1979 May;99(2):261–278. doi: 10.1002/jcp.1040990213. [DOI] [PubMed] [Google Scholar]
  7. Campisi J., Medrano E. E., Morreo G., Pardee A. B. Restriction point control of cell growth by a labile protein: evidence for increased stability in transformed cells. Proc Natl Acad Sci U S A. 1982 Jan;79(2):436–440. doi: 10.1073/pnas.79.2.436. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Conaway R. C., Lehman I. R. A DNA primase activity associated with DNA polymerase alpha from Drosophila melanogaster embryos. Proc Natl Acad Sci U S A. 1982 Apr;79(8):2523–2527. doi: 10.1073/pnas.79.8.2523. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Coughlin S. R., Lee W. M., Williams P. W., Giels G. M., Williams L. T. c-myc gene expression is stimulated by agents that activate protein kinase C and does not account for the mitogenic effect of PDGF. Cell. 1985 Nov;43(1):243–251. doi: 10.1016/0092-8674(85)90029-7. [DOI] [PubMed] [Google Scholar]
  10. Edwards D. R., Parfett C. L., Denhardt D. T. Transcriptional regulation of two serum-induced RNAs in mouse fibroblasts: equivalence of one species to B2 repetitive elements. Mol Cell Biol. 1985 Nov;5(11):3280–3288. doi: 10.1128/mcb.5.11.3280. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Hay R. T., DePamphilis M. L. Initiation of SV40 DNA replication in vivo: location and structure of 5' ends of DNA synthesized in the ori region. Cell. 1982 Apr;28(4):767–779. doi: 10.1016/0092-8674(82)90056-3. [DOI] [PubMed] [Google Scholar]
  12. Heintz N., Sive H. L., Roeder R. G. Regulation of human histone gene expression: kinetics of accumulation and changes in the rate of synthesis and in the half-lives of individual histone mRNAs during the HeLa cell cycle. Mol Cell Biol. 1983 Apr;3(4):539–550. doi: 10.1128/mcb.3.4.539. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Hendrickson S. L., Wu J. S., Johnson L. F. Cell cycle regulation of dihydrofolate reductase mRNA metabolism in mouse fibroblasts. Proc Natl Acad Sci U S A. 1980 Sep;77(9):5140–5144. doi: 10.1073/pnas.77.9.5140. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Imbra R. J., Karin M. Metallothionein gene expression is regulated by serum factors and activators of protein kinase C. Mol Cell Biol. 1987 Apr;7(4):1358–1363. doi: 10.1128/mcb.7.4.1358. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Jenh C. H., Geyer P. K., Johnson L. F. Control of thymidylate synthase mRNA content and gene transcription in an overproducing mouse cell line. Mol Cell Biol. 1985 Oct;5(10):2527–2532. doi: 10.1128/mcb.5.10.2527. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Lau L. F., Nathans D. Identification of a set of genes expressed during the G0/G1 transition of cultured mouse cells. EMBO J. 1985 Dec 1;4(12):3145–3151. doi: 10.1002/j.1460-2075.1985.tb04057.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Lüscher B., Stauber C., Schindler R., Schümperli D. Faithful cell-cycle regulation of a recombinant mouse histone H4 gene is controlled by sequences in the 3'-terminal part of the gene. Proc Natl Acad Sci U S A. 1985 Jul;82(13):4389–4393. doi: 10.1073/pnas.82.13.4389. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Meinkoth J., Wahl G. Hybridization of nucleic acids immobilized on solid supports. Anal Biochem. 1984 May 1;138(2):267–284. doi: 10.1016/0003-2697(84)90808-x. [DOI] [PubMed] [Google Scholar]
  19. Nakamura H., Morita T., Masaki S., Yoshida S. Intracellular localization and metabolism of DNA polymerase alpha in human cells visualized with monoclonal antibody. Exp Cell Res. 1984 Mar;151(1):123–133. doi: 10.1016/0014-4827(84)90362-8. [DOI] [PubMed] [Google Scholar]
  20. Oguro M., Suzuki-Hori C., Nagano H., Mano Y., Ikegami S. The mode of inhibitory action by aphidicolin on eukaryotic DNA polymerase alpha. Eur J Biochem. 1979 Jul;97(2):603–607. doi: 10.1111/j.1432-1033.1979.tb13149.x. [DOI] [PubMed] [Google Scholar]
  21. Oliver D., Granner D., Chalkley R. Identification of a distinction between cytoplasmic histone synthesis and subsequent histone deposition within the nucleus. Biochemistry. 1974 Feb 12;13(4):746–749. doi: 10.1021/bi00701a017. [DOI] [PubMed] [Google Scholar]
  22. Pardee A. B. A restriction point for control of normal animal cell proliferation. Proc Natl Acad Sci U S A. 1974 Apr;71(4):1286–1290. doi: 10.1073/pnas.71.4.1286. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Reichard P., Eliasson R., Söderman G. Initiator RNA in discontinuous polyoma DNA synthesis. Proc Natl Acad Sci U S A. 1974 Dec;71(12):4901–4905. doi: 10.1073/pnas.71.12.4901. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Reiter T., Fett R., Knippers R. Cell-cycle-dependent expression of DNA primase activity. Eur J Biochem. 1987 Apr 1;164(1):59–63. doi: 10.1111/j.1432-1033.1987.tb10992.x. [DOI] [PubMed] [Google Scholar]
  25. Sherley J. L., Kelly T. J. Regulation of human thymidine kinase during the cell cycle. J Biol Chem. 1988 Jun 15;263(17):8350–8358. [PubMed] [Google Scholar]
  26. Skoog L., Nordenskjöld B. Effects of hydroxyurea and 1-beta-D-arabinofuranosyl-cytosine on deoxyribonucleotide pools in mouse embryo cells. Eur J Biochem. 1971 Mar 1;19(1):81–89. doi: 10.1111/j.1432-1033.1971.tb01290.x. [DOI] [PubMed] [Google Scholar]
  27. Stewart C. J., Ito M., Conrad S. E. Evidence for transcriptional and post-transcriptional control of the cellular thymidine kinase gene. Mol Cell Biol. 1987 Mar;7(3):1156–1163. doi: 10.1128/mcb.7.3.1156. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Thomas P. S. Hybridization of denatured RNA and small DNA fragments transferred to nitrocellulose. Proc Natl Acad Sci U S A. 1980 Sep;77(9):5201–5205. doi: 10.1073/pnas.77.9.5201. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Thompson C. B., Challoner P. B., Neiman P. E., Groudine M. Levels of c-myc oncogene mRNA are invariant throughout the cell cycle. 1985 Mar 28-Apr 3Nature. 314(6009):363–366. doi: 10.1038/314363a0. [DOI] [PubMed] [Google Scholar]
  30. Tseng B. Y., Goulian M. Initiator RNA of discontinuous DNA synthesis in human lymphocytes. Cell. 1977 Oct;12(2):483–489. doi: 10.1016/0092-8674(77)90124-6. [DOI] [PubMed] [Google Scholar]
  31. Zetterberg A., Larsson O. Kinetic analysis of regulatory events in G1 leading to proliferation or quiescence of Swiss 3T3 cells. Proc Natl Acad Sci U S A. 1985 Aug;82(16):5365–5369. doi: 10.1073/pnas.82.16.5365. [DOI] [PMC free article] [PubMed] [Google Scholar]

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