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Kinetic evidence that a discrete messenger-like RNA is formed by post-transcriptional size reduction of heterogeneous nuclear RNA

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Abstract

A discrete fraction of heterogeneous nuclear RNA, in addition to the previously described 75 S RNA, has been identified in salivary gland cells of Chironomus tentans. On the basis of its electrophoretic mobility in 1% agarose gel, it is tentatively designated as 35 S RNA. The 35 S RNA possesses distinct and characteristic labelling kinetics. After a lag of 20–45 min it emerges on the chromosomes and in the nuclear sap, but significant quantities of labelled 35 S RNA in the cytoplasm can be found only after 45–90 min of incorporation. The origin of 35 S RNA from genes manufacturing heterogeneous nuclear RNA has been established on the basis of its sensitivity against the nucleoside analogue, 5,6-dichloro-1-β-D-ribofuranosylbenzimidazole, DRB. RNA extract derived from chromosome IV, carrying the Balbiani rings, lacks 35 S RNA. Furthermore, an essentially normal appearance of 35 S RNA was observed in glands having very small or no Balbiani rings and no detectable 75 S RNA synthesis. Both these findings are consonant with the interpretation that 35 S RNA is not generated by genes harboured in the Balbiani rings. When the continuous synthesis of chromosomal RNA is interrupted by actinomycin D, most of the 35 S RNA accumulated in the nuclear sap disappears, whereas a corresponding RNA fraction arrives in the cytoplasm. Kinetic studies as well as the chase experiment with actinomycin D suggest the existence of a kinetic relationship between nuclear sap 35 S RNA and its cytoplasmic counterpart. In addition, studies with the initiation inhibitor DRB strongly indicate that 35 S RNA derives from chromosomal RNA molecules of higher S values than 35 S, probably from RNA in the 75–100 S range, by post-transcriptional cleavages.

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Abbreviations

DRB:

5,6-dichloro-1-β-D-ribofuranosylbenzimidazole

hnRNA:

heterogeneous nuclear RNA

BR RNA:

RNA from the two major Balbiani rings, BR1 andBR2, on chromosome IV

References

  • Bachenheimer, S., Darnell, J.E.: Adenovirus-2 mRNA is transcribed as part of a high-molecular-weight precursor RNA. Proc. nat. Acad. Sci. (Wash.) 72, 4445–4449 (1975)

    Google Scholar 

  • Beermann, W.: Chromomerenkonstanz und spezifische Modifikationen der Chromosomenstruktur in der Entwicklung und Organdifferenzierung von Chironomus tentans. Chromosoma (Berl.) 5, 139–198 (1952)

    Google Scholar 

  • Beermann, W.: Ein Balbiani-Ring als Locus einer Speicheldrüsen-Mutation. Chromosoma (Berl.) 12, 1–25 (1961)

    Google Scholar 

  • Beermann, W.: Directed changes in the pattern of Balbiani ring puffing in Chironomus: Effects of sugar treatment. Chromosoma (Berl.) 41, 297–326 (1973)

    Google Scholar 

  • Bisseling, T., Berendes, H.D., Eubsen, N.H.: RNA synthesis in puff 2–48 BC after experimental induction in Drosophila hydei. Cell 8, 299–304 (1976)

    Google Scholar 

  • Daneholt, B.: Giant RNA transcript in a Balbiani ring. Nature (Lond.) 240, 229–232 (1972)

    Google Scholar 

  • Daneholt, B., Edström, J.-E., Egyházi, E., Lambert, B., Ringborg, U.: Chromosomal RNA synthesis in polytene chromosomes. Chromosoma (Berl.) 28, 399–417 (1969)

    Google Scholar 

  • Daneholt, B., Hosick, H.: Evidence for transport of 75 S RNA from a discrete chromosome region via nuclear sap to cytoplasm in Chironomus tentans. Proc. nat. Acad. Sci. (Wash.) 70, 442–446 (1973)

    Google Scholar 

  • Darnell, J.E.: The origin of mRNA and the structure of the mammalian chromosome. Harvey Lectures 69, 1–47 (1975)

    Google Scholar 

  • Davidson, E.H., Britten, R.J.: Organization, transcription and regulation in the animal genome. Quart. Rev. Biol. 48, 565–613 (1973)

    Google Scholar 

  • Doyle, D., Laufer, H.: Sources of larval salivary gland secretion in the dipteran Chironomus tentans. J. Cell Biol. 40, 61–79 (1969)

    Google Scholar 

  • Edström, J.-E.: Microextraction and microelectrophoresis for determination and analysis of nucleic acids in isolated cellular units. In: Methods in cell physiology, Vol. 1, pp. 414–447 New York: Academic Press 1964

    Google Scholar 

  • Edström, J.-E., Daneholt, B.: Sedimentation properties of the newly synthesized RNA from isolated nuclear components of Chironomus tentans salivary gland cells. J. molec. Biol. 28, 331–343 (1967)

    Google Scholar 

  • Edström, J.-E., Tanguay, R.: Cytoplasmic nucleic acid with messenger characteristics in salivary glands of Chironomus tentans. J. molec. Biol. 84, 569–583 (1974)

    Google Scholar 

  • Egyházi, E.: Actinomycin D and RNA transport. Nature (Lond.) 250, 221–223 (1974a)

    Google Scholar 

  • Egyházi, E.: A tentative initiation inhibitor of chromosomal heterogeneous RNA synthesis. J. molec. Biol. 84, 173–183 (1974b)

    Google Scholar 

  • Egyházi, E.: Processing of heterogeneous chromosomal RNA: Studies with an initiation inhibitor. Biochemistry of the Cell Nucleus, Ninth FEBS Meeting, Budapest 33, 57–62 Budapest: Akademiai Kiadó 1974

    Google Scholar 

  • Egyházi, E.: Inhibition of Balbiani ring RNA synthesis at the initiation level. Proc. nat. Acad. Sci. (Wash.) 72, 947–950 (1975)

    Google Scholar 

  • Egyházi, E.: Quantitation of turnover and export to the cytoplasm of hnRNA transcribed in the Balbiani rings. Cell 7, 507–515 (1976a)

    Google Scholar 

  • Egyházi, E.: Initiation inhibition and reinitiation of the synthesis of heterogeneous nuclear RNA in living cells. Nature (Lond.) 262, 319–321 (1976b)

    Google Scholar 

  • Egyházi, E., Daneholt, B., Edström, J.-E., Lambert, B., Ringborg, U.: Differential inhibitory effect of a substituted benzimidazole on RNA labelling in polytene chromosomes. J. Cell Biol. 47, 516–520 (1970)

    Google Scholar 

  • Firtel, R.A., Lodish, H.F.: A small nuclear precursor of messenger RNA in the cellular slime mold Dictyostelium discoideum. J. molec. Biol. 79, 295–314 (1973)

    Google Scholar 

  • Georgiev, G.P., Ryskov, A.P., Coutelle, C., Mantieva, V.L., Avakyan, E.R.: On the structure of transcriptional unit in mammalian cells. Biochim. biophys. Acta (Amst.) 259, 259–283 (1972)

    Google Scholar 

  • Greenberg, J.R., Perry, R.P.: Relative occurrence of polyadenylic acid sequences in messenger and heterogeneous nuclear RNA of L cells as determined by poly(U)-hydroxylapatit chromatography. J. molec. Biol. 72, 91–98 (1972)

    Google Scholar 

  • Grossbach, U.: Chromosomen-Aktivität und biochemische Zelldifferentierung in den Speicheldrüsen con Camptochrinomus. Chromosoma (Berl.) 28, 136–187 (1969)

    Google Scholar 

  • Grossbach, U.: Chromosome puffs and gene expression in polytene cells. Cold Spr. Harb. Symp. quant. Biol. 38, 619–627 (1973)

    Google Scholar 

  • Hollenberg, C.P.: Proportionate representation of rDNA and Balbiani ring DNA in polytene chromosomes of Chironomus tentans. Chromosoma (Berl.) 57, 185–1197 (1976)

    Google Scholar 

  • Hyman, R.W., Davidson, N.: Kinetics of the in vitro inhibition of transcription by actinomycin. J. molec. Biol. 50, 421–438 (1970)

    Google Scholar 

  • Jelinek, W., Adesnik, M., Salditt, M., Sheiness, D., Wall, R., Molloy, G., Philipson, L., Darnell, J.E.: Further evidence on the nuclear origin and transfer to the cytoplasm of polyadenylic acid sequences in mammalian cell RNA. J. molec. Biol. 75, 515–532 (1973)

    Google Scholar 

  • Lambert, B., Edström, J.-E.: Balbiani ring nucleotide sequences in cytoplasmic 75 S RNA of Chironomus tentans salivary gland cells. Mol. Biol. Reports 1, 457–464 (1974)

    Google Scholar 

  • Lee, S.Y., Mendecki, J., Brawerman, G.: A polynucleotide segment rich in polyadenylic acid in the rapidly labelled polyribosomal component of mouse sarcoma 180 ascites cells. Proc. nat. Acad. Sci. (Wash.) 68, 1331–1335 (1971)

    Google Scholar 

  • Lewin, B.: Units of transcription and translation: the relationship between heterogeneous nuclear RNA and messenger RNA. Cell 4, 11–20 (1975)

    Google Scholar 

  • Lindberg, U., Darnell, J.E.: SV40-specific RNA in the nucleus and polyribosomes of transformed cells. Proc nat. Acad. Sci. (Wash.) 65, 1089–1096 (1970)

    Google Scholar 

  • Lizardi, P.M.: The size of pulse-labeled fibroin messenger RNA. Cell 7, 239–245 (1976)

    Google Scholar 

  • Macnaughton, M., Freeman, K.B., Bishop, J.O.: A precursor to hemoglobin mRNA in nuclei of immature duck red blood cells. Cell 1, 117–125 (1974)

    Google Scholar 

  • McKnight, G.S., Schimke, R.T.: Ovalbumin messenger RNA: Evidence the initial product of transcription is the same size as polysomal ovalbumin messenger. Proc. nat. Acad. Sci. (Wash.) 71, 4327–4331 (1974)

    Google Scholar 

  • Mendecki, J., Lee, S.Y., Brawerman, G.: Characteristics of the polyadenylic acid segment associated with messenger ribonucleic acid in mouse sarcoma 180 ascites cells. Biochemistry 11, 792–798 (1972)

    Google Scholar 

  • Molloy, G.R., Jelinek, W., Salditt, M., Darnell, J.E.: Arrangement of specific oligonucleotides within poly(A) terminated HnRNA molecules. Cell 1, 43–53 (1974)

    Google Scholar 

  • Ringborg, U., Rydlander, L.: Nucleolar derived ribonucleic acid in chromosomes, nuclear sap, and cytoplasm of Chironomus tentans salivary gland cells. J. Cell Biol. 51, 355–368 (1971)

    Google Scholar 

  • Ruiz-Carrillo, A., Beato, M., Schutz, G., Feigelson, P., Allfrey, V.G.: Cell-free translation of the globin message within polydisperse high molecular weight ribonucleic acid of avian erythrocytes. Proc. nat. Acad. Sci. (Wash.) 70, 3641–3645 (1973)

    Google Scholar 

  • Rydlander, L., Edström, J.-E.: Expression of Balbiani ring genes. In: Organization and expression of the eukaryotic genome, pp. 149–156. In: Proc. of the Tenth FEBS Meeting, Paris, 1975

  • Scheer, U., Trendelenburg, M.F., Franke, W.W.: Effects of actinomycin D on the association of newly formed ribonucleo-proteins with the cistrons of ribosomal RNA in Triturus oocytes. J. Cell Biol. 65, 163–179 (1975)

    Google Scholar 

  • Scherrer, K.: Karolinska Symposia on Res. Methods in Repr. Endocrinol, 6th Symp. pp. 95–129 Geneva 1973

  • Scherrer, K., Spohr, G., Granboulan, N., Morel, G., Grosslande, J., Chezzi, C.: Nuclear and cytoplasmic messenger-like RNA and their relation to the active messenger RNA in polyribosomes of HeLa cells. Cold Spr. Harb. Symp. quant. Biol. 35, 539–554 (1970)

    Google Scholar 

  • Spohr, G., Imaizumi, T., Scherrer, K.: Synthesis and processing of nuclear precursor messenger RNA in avian erythroblasts and HeLa cells. Proc. nat. Acad. Sci. (Wash.) 71, 5009–5013 (1974)

    Google Scholar 

  • Wobus, U., Popp, S., Serfling, E., Panitz, R.: Protein synthesis in the Chironomus tentans. Molec. gen. Genet. 116, 309–321 (1972)

    Google Scholar 

Download references

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Egyházi, E. Kinetic evidence that a discrete messenger-like RNA is formed by post-transcriptional size reduction of heterogeneous nuclear RNA. Chromosoma 65, 137–152 (1978). https://doi.org/10.1007/BF00329466

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