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. 1987 Dec 1;6(12):3553–3558. doi: 10.1002/j.1460-2075.1987.tb02684.x

The regulatory c1 locus of Zea mays encodes a protein with homology to myb proto-oncogene products and with structural similarities to transcriptional activators.

J Paz-Ares 1, D Ghosal 1, U Wienand 1, P A Peterson 1, H Saedler 1
PMCID: PMC553820  PMID: 3428265

Abstract

The structure of the wild-type c1 locus of Zea mays was determined by sequence analysis of one genomic and two cDNA clones. The coding region is composed of three exons (150 bp, 129 bp and one, at least 720 bp) and two small introns (88 bp and 145 bp). Transcription of the mRNAs corresponding to the two cDNA clones cLC6 (1.1 kb) and cLC28 (2.1 kb) starts from the same promoter. Both cDNAs are identical except that cLC28 extends further at its 3' end. A putative protein, 273 amino acids in length was deduced from the sequence of both transcripts. It contains two domains, one basic and the other acidic and might function as a transcriptional activator. The basic domain of this c1-encoded protein shows 40% sequence homology to the protein products of animal myb proto-oncogenes.

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Selected References

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

  1. Beier H., Barciszewska M., Krupp G., Mitnacht R., Gross H. J. UAG readthrough during TMV RNA translation: isolation and sequence of two tRNAs with suppressor activity from tobacco plants. EMBO J. 1984 Feb;3(2):351–356. doi: 10.1002/j.1460-2075.1984.tb01810.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Beier H., Barciszewska M., Sickinger H. D. The molecular basis for the differential translation of TMV RNA in tobacco protoplasts and wheat germ extracts. EMBO J. 1984 May;3(5):1091–1096. doi: 10.1002/j.1460-2075.1984.tb01934.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Boyle W. J., Lampert M. A., Lipsick J. S., Baluda M. A. Avian myeloblastosis virus and E26 virus oncogene products are nuclear proteins. Proc Natl Acad Sci U S A. 1984 Jul;81(14):4265–4269. doi: 10.1073/pnas.81.14.4265. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Breathnach R., Chambon P. Organization and expression of eucaryotic split genes coding for proteins. Annu Rev Biochem. 1981;50:349–383. doi: 10.1146/annurev.bi.50.070181.002025. [DOI] [PubMed] [Google Scholar]
  5. Brent R., Ptashne M. A eukaryotic transcriptional activator bearing the DNA specificity of a prokaryotic repressor. Cell. 1985 Dec;43(3 Pt 2):729–736. doi: 10.1016/0092-8674(85)90246-6. [DOI] [PubMed] [Google Scholar]
  6. Chen S. M., Coe E. H., Jr Control of anthocyanin synthesis by the C locus in maize. Biochem Genet. 1977 Apr;15(3-4):333–346. doi: 10.1007/BF00484464. [DOI] [PubMed] [Google Scholar]
  7. Choi O. R., Engel J. D. A 3' enhancer is required for temporal and tissue-specific transcriptional activation of the chicken adult beta-globin gene. Nature. 1986 Oct 23;323(6090):731–734. doi: 10.1038/323731a0. [DOI] [PubMed] [Google Scholar]
  8. Cone K. C., Burr F. A., Burr B. Molecular analysis of the maize anthocyanin regulatory locus C1. Proc Natl Acad Sci U S A. 1986 Dec;83(24):9631–9635. doi: 10.1073/pnas.83.24.9631. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Devereux J., Haeberli P., Smithies O. A comprehensive set of sequence analysis programs for the VAX. Nucleic Acids Res. 1984 Jan 11;12(1 Pt 1):387–395. doi: 10.1093/nar/12.1part1.387. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Dooner H. K., Nelson O. E. Genetic control of UDPglucose:flavonol 3-O-glucosyltransferase in the endosperm of maize. Biochem Genet. 1977 Jun;15(5-6):509–519. doi: 10.1007/BF00520194. [DOI] [PubMed] [Google Scholar]
  11. Dooner H. K., Nelson O. E. Interaction among C, R and Vp in the Control of the Bz Glucosyltransferase during Endosperm Development in Maize. Genetics. 1979 Feb;91(2):309–315. doi: 10.1093/genetics/91.2.309. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Fedoroff N. V., Furtek D. B., Nelson O. E. Cloning of the bronze locus in maize by a simple and generalizable procedure using the transposable controlling element Activator (Ac). Proc Natl Acad Sci U S A. 1984 Jun;81(12):3825–3829. doi: 10.1073/pnas.81.12.3825. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Fischer J. A., Maniatis T. Regulatory elements involved in Drosophila Adh gene expression are conserved in divergent species and separate elements mediate expression in different tissues. EMBO J. 1986 Jun;5(6):1275–1289. doi: 10.1002/j.1460-2075.1986.tb04357.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Gonda T. J., Gough N. M., Dunn A. R., de Blaquiere J. Nucleotide sequence of cDNA clones of the murine myb proto-oncogene. EMBO J. 1985 Aug;4(8):2003–2008. doi: 10.1002/j.1460-2075.1985.tb03884.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Henikoff S. Unidirectional digestion with exonuclease III creates targeted breakpoints for DNA sequencing. Gene. 1984 Jun;28(3):351–359. doi: 10.1016/0378-1119(84)90153-7. [DOI] [PubMed] [Google Scholar]
  16. Hope I. A., Struhl K. Functional dissection of a eukaryotic transcriptional activator protein, GCN4 of yeast. Cell. 1986 Sep 12;46(6):885–894. doi: 10.1016/0092-8674(86)90070-x. [DOI] [PubMed] [Google Scholar]
  17. Katzen A. L., Kornberg T. B., Bishop J. M. Isolation of the proto-oncogene c-myb from D. melanogaster. Cell. 1985 Jun;41(2):449–456. doi: 10.1016/s0092-8674(85)80018-0. [DOI] [PubMed] [Google Scholar]
  18. Klempnauer K. H., Bonifer C., Sippel A. E. Identification and characterization of the protein encoded by the human c-myb proto-oncogene. EMBO J. 1986 Aug;5(8):1903–1911. doi: 10.1002/j.1460-2075.1986.tb04443.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Klempnauer K. H., Gonda T. J., Bishop J. M. Nucleotide sequence of the retroviral leukemia gene v-myb and its cellular progenitor c-myb: the architecture of a transduced oncogene. Cell. 1982 Dec;31(2 Pt 1):453–463. doi: 10.1016/0092-8674(82)90138-6. [DOI] [PubMed] [Google Scholar]
  20. Klempnauer K. H., Sippel A. E. Subnuclear localization of proteins encoded by the oncogene v-myb and its cellular homolog c-myb. Mol Cell Biol. 1986 Jan;6(1):62–69. doi: 10.1128/mcb.6.1.62. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Klempnauer K. H., Sippel A. E. The highly conserved amino-terminal region of the protein encoded by the v-myb oncogene functions as a DNA-binding domain. EMBO J. 1987 Sep;6(9):2719–2725. doi: 10.1002/j.1460-2075.1987.tb02565.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Kozak M. Compilation and analysis of sequences upstream from the translational start site in eukaryotic mRNAs. Nucleic Acids Res. 1984 Jan 25;12(2):857–872. doi: 10.1093/nar/12.2.857. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Larson R. L., Coe E. H., Jr Gene-dependent flavonoid glucosyltransferase in maize. Biochem Genet. 1977 Feb;15(1-2):153–156. doi: 10.1007/BF00484558. [DOI] [PubMed] [Google Scholar]
  24. Ma J., Ptashne M. Deletion analysis of GAL4 defines two transcriptional activating segments. Cell. 1987 Mar 13;48(5):847–853. doi: 10.1016/0092-8674(87)90081-x. [DOI] [PubMed] [Google Scholar]
  25. Majello B., Kenyon L. C., Dalla-Favera R. Human c-myb protooncogene: nucleotide sequence of cDNA and organization of the genomic locus. Proc Natl Acad Sci U S A. 1986 Dec;83(24):9636–9640. doi: 10.1073/pnas.83.24.9636. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. Maxam A. M., Gilbert W. Sequencing end-labeled DNA with base-specific chemical cleavages. Methods Enzymol. 1980;65(1):499–560. doi: 10.1016/s0076-6879(80)65059-9. [DOI] [PubMed] [Google Scholar]
  27. McCormick S. Pigment synthesis in maize aleurone from precursors fed to anthocyanin mutants. Biochem Genet. 1978 Aug;16(7-8):777–785. doi: 10.1007/BF00484735. [DOI] [PubMed] [Google Scholar]
  28. Moelling K., Pfaff E., Beug H., Beimling P., Bunte T., Schaller H. E., Graf T. DNA-binding activity is associated with purified myb proteins from AMV and E26 viruses and is temperature-sensitive for E26 ts mutants. Cell. 1985 Apr;40(4):983–990. doi: 10.1016/0092-8674(85)90358-7. [DOI] [PubMed] [Google Scholar]
  29. Norrander J., Kempe T., Messing J. Construction of improved M13 vectors using oligodeoxynucleotide-directed mutagenesis. Gene. 1983 Dec;26(1):101–106. doi: 10.1016/0378-1119(83)90040-9. [DOI] [PubMed] [Google Scholar]
  30. Paz-Ares J., Wienand U., Peterson P. A., Saedler H. Molecular cloning of the c locus of Zea mays: a locus regulating the anthocyanin pathway. EMBO J. 1986 May;5(5):829–833. doi: 10.1002/j.1460-2075.1986.tb04291.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  31. Proudfoot N. J., Brownlee G. G. 3' non-coding region sequences in eukaryotic messenger RNA. Nature. 1976 Sep 16;263(5574):211–214. doi: 10.1038/263211a0. [DOI] [PubMed] [Google Scholar]
  32. REDDY G. M., COE E. H., Jr Inter-tissue complemention: a simple technique for direct analysis of gene-action sequence. Science. 1962 Oct 12;138(3537):149–150. doi: 10.1126/science.138.3537.149. [DOI] [PubMed] [Google Scholar]
  33. Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Schwarz-Sommer Z., Gierl A., Cuypers H., Peterson P. A., Saedler H. Plant transposable elements generate the DNA sequence diversity needed in evolution. EMBO J. 1985 Mar;4(3):591–597. doi: 10.1002/j.1460-2075.1985.tb03671.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  35. Schwarz-Sommer Z., Gierl A., Klösgen R. B., Wienand U., Peterson P. A., Saedler H. The Spm (En) transposable element controls the excision of a 2-kb DNA insert at the wx allele of Zea mays. EMBO J. 1984 May;3(5):1021–1028. doi: 10.1002/j.1460-2075.1984.tb01922.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  36. Schwarz-Sommer Z., Shepherd N., Tacke E., Gierl A., Rohde W., Leclercq L., Mattes M., Berndtgen R., Peterson P. A., Saedler H. Influence of transposable elements on the structure and function of the A1 gene of Zea mays. EMBO J. 1987 Feb;6(2):287–294. doi: 10.1002/j.1460-2075.1987.tb04752.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Struhl K. Promoters, activator proteins, and the mechanism of transcriptional initiation in yeast. Cell. 1987 May 8;49(3):295–297. doi: 10.1016/0092-8674(87)90277-7. [DOI] [PubMed] [Google Scholar]
  38. Trainor C. D., Stamler S. J., Engel J. D. Erythroid-specific transcription of the chicken histone H5 gene is directed by a 3' enhancer. 1987 Aug 27-Sep 2Nature. 328(6133):827–830. doi: 10.1038/328827a0. [DOI] [PubMed] [Google Scholar]
  39. Weaver R. F., Weissmann C. Mapping of RNA by a modification of the Berk-Sharp procedure: the 5' termini of 15 S beta-globin mRNA precursor and mature 10 s beta-globin mRNA have identical map coordinates. Nucleic Acids Res. 1979 Nov 10;7(5):1175–1193. doi: 10.1093/nar/7.5.1175. [DOI] [PMC free article] [PubMed] [Google Scholar]

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