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Journal of Virology logoLink to Journal of Virology
. 1992 Aug;66(8):5018–5029. doi: 10.1128/jvi.66.8.5018-5029.1992

The v-rel oncogene: insights into the mechanism of transcriptional activation, repression, and transformation.

W H Walker 1, B Stein 1, P A Ganchi 1, J A Hoffman 1, P A Kaufman 1, D W Ballard 1, M Hannink 1, W C Greene 1
PMCID: PMC241358  PMID: 1321284

Abstract

The v-rel oncogene product from the avian reticuloendotheliosis virus strain T corresponds to a member of the Rel-related family of enhancer-binding proteins that includes both the mammalian 50- and 65-kDa subunits of the NF-kappa B transcription factor complex. However, in contrast to NF-kappa B, v-Rel has been shown to function as a dominant-negative repressor of kappa B-dependent transcription in many mature cell types. We now demonstrate that a highly conserved motif within the Rel homology domain of v-Rel containing a consensus protein kinase A phosphorylation site is required for DNA binding, transcriptional repression, and cellular transformation mediated by this oncoprotein. However, replacement of the serine phosphate acceptor within the protein kinase A site with an alanine did not alter any of these functions of v-Rel, suggesting that phosphorylation at this site is not central to the regulation of this oncogene product. Rather, the inactive mutations appear to identify a functional domain within v-Rel required for these various biological activities. It is notable that these same mutations do not impair the ability of v-Rel to heterodimerize with the 50-kDa subunit of NF-kappa B, suggesting that v-Rel-mediated transcriptional repression likely involves direct nuclear blockade of the kappa B enhancer rather than indirect alterations in the composition of preformed cytoplasmic NF-kappa B complexes. Paradoxically, when introduced into undifferentiated F9 cells, v-Rel functions as a kappa B-specific transcriptional activator rather than as a dominant-negative repressor. These stimulatory effects of v-Rel require both the conserved protein kinase A phosphorylation site and additional unique C-terminal sequences not needed for v-Rel-mediated repression in mature cells. Retinoic acid-induced differentiation of these F9 cells restores the repressor function of v-Rel. These opposing biological actions of v-Rel occurring in cells at distinct stages of differentiation may have important implications for the mechanism of v-Rel-mediated transformation occurring in avian splenocytes.

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Selected References

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  1. Baeuerle P. A., Baltimore D. Activation of DNA-binding activity in an apparently cytoplasmic precursor of the NF-kappa B transcription factor. Cell. 1988 Apr 22;53(2):211–217. doi: 10.1016/0092-8674(88)90382-0. [DOI] [PubMed] [Google Scholar]
  2. Baeuerle P. A., Baltimore D. I kappa B: a specific inhibitor of the NF-kappa B transcription factor. Science. 1988 Oct 28;242(4878):540–546. doi: 10.1126/science.3140380. [DOI] [PubMed] [Google Scholar]
  3. Ballard D. W., Böhnlein E., Hoffman J. A., Bogerd H. P., Dixon E. P., Franza B. R., Greene W. C. Activation of the interleukin-2 receptor alpha gene: regulatory role for DNA-protein interactions flanking the kappa B enhancer. New Biol. 1989 Oct;1(1):83–92. [PubMed] [Google Scholar]
  4. Ballard D. W., Böhnlein E., Lowenthal J. W., Wano Y., Franza B. R., Greene W. C. HTLV-I tax induces cellular proteins that activate the kappa B element in the IL-2 receptor alpha gene. Science. 1988 Sep 23;241(4873):1652–1655. doi: 10.1126/science.241.4873.1652. [DOI] [PubMed] [Google Scholar]
  5. Ballard D. W., Walker W. H., Doerre S., Sista P., Molitor J. A., Dixon E. P., Peffer N. J., Hannink M., Greene W. C. The v-rel oncogene encodes a kappa B enhancer binding protein that inhibits NF-kappa B function. Cell. 1990 Nov 16;63(4):803–814. doi: 10.1016/0092-8674(90)90146-6. [DOI] [PubMed] [Google Scholar]
  6. Barth C. F., Ewert D. L., Olson W. C., Humphries E. H. Reticuloendotheliosis virus REV-T(REV-A)-induced neoplasia: development of tumors within the T-lymphoid and myeloid lineages. J Virol. 1990 Dec;64(12):6054–6062. doi: 10.1128/jvi.64.12.6054-6062.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Beug H., Müller H., Grieser S., Doederlein G., Graf T. Hematopoietic cells transformed in vitro by REVT avian reticuloendotheliosis virus express characteristics of very immature lymphoid cells. Virology. 1981 Dec;115(2):295–309. doi: 10.1016/0042-6822(81)90112-4. [DOI] [PubMed] [Google Scholar]
  8. Bradford M. M. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem. 1976 May 7;72:248–254. doi: 10.1016/0003-2697(76)90527-3. [DOI] [PubMed] [Google Scholar]
  9. Bull P., Morley K. L., Hoekstra M. F., Hunter T., Verma I. M. The mouse c-rel protein has an N-terminal regulatory domain and a C-terminal transcriptional transactivation domain. Mol Cell Biol. 1990 Oct;10(10):5473–5485. doi: 10.1128/mcb.10.10.5473. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Böhnlein E., Lowenthal J. W., Siekevitz M., Ballard D. W., Franza B. R., Greene W. C. The same inducible nuclear proteins regulates mitogen activation of both the interleukin-2 receptor-alpha gene and type 1 HIV. Cell. 1988 Jun 3;53(5):827–836. doi: 10.1016/0092-8674(88)90099-2. [DOI] [PubMed] [Google Scholar]
  11. DiNardo S., Heemskerk J. Molecular and cellular interactions responsible for intrasegmental patterning during Drosophila embryogenesis. Semin Cell Biol. 1990 Jun;1(3):173–183. [PubMed] [Google Scholar]
  12. Garson K., Percival H., Kang C. Y. The N-terminal env-derived amino acids of v-rel are required for full transforming activity. Virology. 1990 Jul;177(1):106–115. doi: 10.1016/0042-6822(90)90464-3. [DOI] [PubMed] [Google Scholar]
  13. Ghosh S., Baltimore D. Activation in vitro of NF-kappa B by phosphorylation of its inhibitor I kappa B. Nature. 1990 Apr 12;344(6267):678–682. doi: 10.1038/344678a0. [DOI] [PubMed] [Google Scholar]
  14. Ghosh S., Gifford A. M., Riviere L. R., Tempst P., Nolan G. P., Baltimore D. Cloning of the p50 DNA binding subunit of NF-kappa B: homology to rel and dorsal. Cell. 1990 Sep 7;62(5):1019–1029. doi: 10.1016/0092-8674(90)90276-k. [DOI] [PubMed] [Google Scholar]
  15. Gilmore T. D. NF-kappa B, KBF1, dorsal, and related matters. Cell. 1990 Sep 7;62(5):841–843. doi: 10.1016/0092-8674(90)90257-f. [DOI] [PubMed] [Google Scholar]
  16. Gilmore T. D., Temin H. M. Different localization of the product of the v-rel oncogene in chicken fibroblasts and spleen cells correlates with transformation by REV-T. Cell. 1986 Mar 14;44(5):791–800. doi: 10.1016/0092-8674(86)90845-7. [DOI] [PubMed] [Google Scholar]
  17. Gilmore T. D., Temin H. M. v-rel oncoproteins in the nucleus and in the cytoplasm transform chicken spleen cells. J Virol. 1988 Mar;62(3):703–714. doi: 10.1128/jvi.62.3.703-714.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Graham F. L., van der Eb A. J. A new technique for the assay of infectivity of human adenovirus 5 DNA. Virology. 1973 Apr;52(2):456–467. doi: 10.1016/0042-6822(73)90341-3. [DOI] [PubMed] [Google Scholar]
  19. Gélinas C., Temin H. M. The v-rel oncogene encodes a cell-specific transcriptional activator of certain promoters. Oncogene. 1988 Oct;3(4):349–355. [PubMed] [Google Scholar]
  20. Hannink M., Temin H. M. Transactivation of gene expression by nuclear and cytoplasmic rel proteins. Mol Cell Biol. 1989 Oct;9(10):4323–4336. doi: 10.1128/mcb.9.10.4323. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Holbrook N. J., Gulino A., Ruscetti F. Cis-acting transcriptional regulatory sequences in the gibbon ape leukemia virus (GALV) long terminal repeat. Virology. 1987 Mar;157(1):211–219. doi: 10.1016/0042-6822(87)90330-8. [DOI] [PubMed] [Google Scholar]
  22. Inoue J., Kerr L. D., Ransone L. J., Bengal E., Hunter T., Verma I. M. c-rel activates but v-rel suppresses transcription from kappa B sites. Proc Natl Acad Sci U S A. 1991 May 1;88(9):3715–3719. doi: 10.1073/pnas.88.9.3715. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Kabrun N., Hodgson J. W., Doemer M., Mak G., Franza B. R., Jr, Enrietto P. J. Interaction of the v-rel protein with an NF-kappa B DNA binding site. Proc Natl Acad Sci U S A. 1991 Mar 1;88(5):1783–1787. doi: 10.1073/pnas.88.5.1783. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Kamens J., Richardson P., Mosialos G., Brent R., Gilmore T. Oncogenic transformation by vrel requires an amino-terminal activation domain. Mol Cell Biol. 1990 Jun;10(6):2840–2847. doi: 10.1128/mcb.10.6.2840. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Kawai S., Nishizawa M. New procedure for DNA transfection with polycation and dimethyl sulfoxide. Mol Cell Biol. 1984 Jun;4(6):1172–1174. doi: 10.1128/mcb.4.6.1172. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. Kemp B. E., Pearson R. B. Protein kinase recognition sequence motifs. Trends Biochem Sci. 1990 Sep;15(9):342–346. doi: 10.1016/0968-0004(90)90073-k. [DOI] [PubMed] [Google Scholar]
  27. Kieran M., Blank V., Logeat F., Vandekerckhove J., Lottspeich F., Le Bail O., Urban M. B., Kourilsky P., Baeuerle P. A., Israël A. The DNA binding subunit of NF-kappa B is identical to factor KBF1 and homologous to the rel oncogene product. Cell. 1990 Sep 7;62(5):1007–1018. doi: 10.1016/0092-8674(90)90275-j. [DOI] [PubMed] [Google Scholar]
  28. Lenardo M. J., Baltimore D. NF-kappa B: a pleiotropic mediator of inducible and tissue-specific gene control. Cell. 1989 Jul 28;58(2):227–229. doi: 10.1016/0092-8674(89)90833-7. [DOI] [PubMed] [Google Scholar]
  29. Lenardo M. J., Kuang A., Gifford A., Baltimore D. NF-kappa B protein purification from bovine spleen: nucleotide stimulation and binding site specificity. Proc Natl Acad Sci U S A. 1988 Dec;85(23):8825–8829. doi: 10.1073/pnas.85.23.8825. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Leung K., Nabel G. J. HTLV-1 transactivator induces interleukin-2 receptor expression through an NF-kappa B-like factor. Nature. 1988 Jun 23;333(6175):776–778. doi: 10.1038/333776a0. [DOI] [PubMed] [Google Scholar]
  31. Lewis R. B., McClure J., Rup B., Niesel D. W., Garry R. F., Hoelzer J. D., Nazerian K., Bose H. R., Jr Avian reticuloendotheliosis virus: identification of the hematopoietic target cell for transformation. Cell. 1981 Aug;25(2):421–431. doi: 10.1016/0092-8674(81)90060-x. [DOI] [PubMed] [Google Scholar]
  32. Logeat F., Israël N., Ten R., Blank V., Le Bail O., Kourilsky P., Israël A. Inhibition of transcription factors belonging to the rel/NF-kappa B family by a transdominant negative mutant. EMBO J. 1991 Jul;10(7):1827–1832. doi: 10.1002/j.1460-2075.1991.tb07708.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  33. Lowenthal J. W., Ballard D. W., Böhnlein E., Greene W. C. Tumor necrosis factor alpha induces proteins that bind specifically to kappa B-like enhancer elements and regulate interleukin 2 receptor alpha-chain gene expression in primary human T lymphocytes. Proc Natl Acad Sci U S A. 1989 Apr;86(7):2331–2335. doi: 10.1073/pnas.86.7.2331. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Mosialos G., Hamer P., Capobianco A. J., Laursen R. A., Gilmore T. D. A protein kinase-A recognition sequence is structurally linked to transformation by p59v-rel and cytoplasmic retention of p68c-rel. Mol Cell Biol. 1991 Dec;11(12):5867–5877. doi: 10.1128/mcb.11.12.5867. [DOI] [PMC free article] [PubMed] [Google Scholar]
  35. Nabel G., Baltimore D. An inducible transcription factor activates expression of human immunodeficiency virus in T cells. Nature. 1987 Apr 16;326(6114):711–713. doi: 10.1038/326711a0. [DOI] [PubMed] [Google Scholar]
  36. Nakamaye K. L., Eckstein F. Inhibition of restriction endonuclease Nci I cleavage by phosphorothioate groups and its application to oligonucleotide-directed mutagenesis. Nucleic Acids Res. 1986 Dec 22;14(24):9679–9698. doi: 10.1093/nar/14.24.9679. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Nolan G. P., Ghosh S., Liou H. C., Tempst P., Baltimore D. DNA binding and I kappa B inhibition of the cloned p65 subunit of NF-kappa B, a rel-related polypeptide. Cell. 1991 Mar 8;64(5):961–969. doi: 10.1016/0092-8674(91)90320-x. [DOI] [PubMed] [Google Scholar]
  38. Osborn L., Kunkel S., Nabel G. J. Tumor necrosis factor alpha and interleukin 1 stimulate the human immunodeficiency virus enhancer by activation of the nuclear factor kappa B. Proc Natl Acad Sci U S A. 1989 Apr;86(7):2336–2340. doi: 10.1073/pnas.86.7.2336. [DOI] [PMC free article] [PubMed] [Google Scholar]
  39. Richardson P. M., Gilmore T. D. vRel is an inactive member of the Rel family of transcriptional activating proteins. J Virol. 1991 Jun;65(6):3122–3130. doi: 10.1128/jvi.65.6.3122-3130.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
  40. Rimsky L., Hauber J., Dukovich M., Malim M. H., Langlois A., Cullen B. R., Greene W. C. Functional replacement of the HIV-1 rev protein by the HTLV-1 rex protein. Nature. 1988 Oct 20;335(6192):738–740. doi: 10.1038/335738a0. [DOI] [PubMed] [Google Scholar]
  41. Ruben S. M., Dillon P. J., Schreck R., Henkel T., Chen C. H., Maher M., Baeuerle P. A., Rosen C. A. Isolation of a rel-related human cDNA that potentially encodes the 65-kD subunit of NF-kappa B. Science. 1991 Mar 22;251(5000):1490–1493. doi: 10.1126/science.2006423. [DOI] [PubMed] [Google Scholar]
  42. Ruben S., Poteat H., Tan T. H., Kawakami K., Roeder R., Haseltine W., Rosen C. A. Cellular transcription factors and regulation of IL-2 receptor gene expression by HTLV-I tax gene product. Science. 1988 Jul 1;241(4861):89–92. doi: 10.1126/science.2838905. [DOI] [PubMed] [Google Scholar]
  43. Rushlow C. A., Han K., Manley J. L., Levine M. The graded distribution of the dorsal morphogen is initiated by selective nuclear transport in Drosophila. Cell. 1989 Dec 22;59(6):1165–1177. doi: 10.1016/0092-8674(89)90772-1. [DOI] [PubMed] [Google Scholar]
  44. Rushlow C., Doyle H., Hoey T., Levine M. Molecular characterization of the zerknüllt region of the Antennapedia gene complex in Drosophila. Genes Dev. 1987 Dec;1(10):1268–1279. doi: 10.1101/gad.1.10.1268. [DOI] [PubMed] [Google Scholar]
  45. Rushlow C., Frasch M., Doyle H., Levine M. Maternal regulation of zerknüllt: a homoeobox gene controlling differentiation of dorsal tissues in Drosophila. Nature. 1987 Dec 10;330(6148):583–586. doi: 10.1038/330583a0. [DOI] [PubMed] [Google Scholar]
  46. Sanger F., Coulson A. R., Barrell B. G., Smith A. J., Roe B. A. Cloning in single-stranded bacteriophage as an aid to rapid DNA sequencing. J Mol Biol. 1980 Oct 25;143(2):161–178. doi: 10.1016/0022-2836(80)90196-5. [DOI] [PubMed] [Google Scholar]
  47. Schmid R. M., Perkins N. D., Duckett C. S., Andrews P. C., Nabel G. J. Cloning of an NF-kappa B subunit which stimulates HIV transcription in synergy with p65. Nature. 1991 Aug 22;352(6337):733–736. doi: 10.1038/352733a0. [DOI] [PubMed] [Google Scholar]
  48. Sen R., Baltimore D. Inducibility of kappa immunoglobulin enhancer-binding protein Nf-kappa B by a posttranslational mechanism. Cell. 1986 Dec 26;47(6):921–928. doi: 10.1016/0092-8674(86)90807-x. [DOI] [PubMed] [Google Scholar]
  49. Sen R., Baltimore D. Multiple nuclear factors interact with the immunoglobulin enhancer sequences. Cell. 1986 Aug 29;46(5):705–716. doi: 10.1016/0092-8674(86)90346-6. [DOI] [PubMed] [Google Scholar]
  50. Siekevitz M., Josephs S. F., Dukovich M., Peffer N., Wong-Staal F., Greene W. C. Activation of the HIV-1 LTR by T cell mitogens and the trans-activator protein of HTLV-I. Science. 1987 Dec 11;238(4833):1575–1578. doi: 10.1126/science.2825351. [DOI] [PubMed] [Google Scholar]
  51. Simpson P. Maternal-Zygotic Gene Interactions during Formation of the Dorsoventral Pattern in Drosophila Embryos. Genetics. 1983 Nov;105(3):615–632. doi: 10.1093/genetics/105.3.615. [DOI] [PMC free article] [PubMed] [Google Scholar]
  52. Sodroski J., Rosen C., Wong-Staal F., Salahuddin S. Z., Popovic M., Arya S., Gallo R. C., Haseltine W. A. Trans-acting transcriptional regulation of human T-cell leukemia virus type III long terminal repeat. Science. 1985 Jan 11;227(4683):171–173. doi: 10.1126/science.2981427. [DOI] [PubMed] [Google Scholar]
  53. St Johnston R. D., Gelbart W. M. Decapentaplegic transcripts are localized along the dorsal-ventral axis of the Drosophila embryo. EMBO J. 1987 Sep;6(9):2785–2791. doi: 10.1002/j.1460-2075.1987.tb02574.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  54. Stein B., Rahmsdorf H. J., Steffen A., Litfin M., Herrlich P. UV-induced DNA damage is an intermediate step in UV-induced expression of human immunodeficiency virus type 1, collagenase, c-fos, and metallothionein. Mol Cell Biol. 1989 Nov;9(11):5169–5181. doi: 10.1128/mcb.9.11.5169. [DOI] [PMC free article] [PubMed] [Google Scholar]
  55. Stephens R. M., Rice N. R., Hiebsch R. R., Bose H. R., Jr, Gilden R. V. Nucleotide sequence of v-rel: the oncogene of reticuloendotheliosis virus. Proc Natl Acad Sci U S A. 1983 Oct;80(20):6229–6233. doi: 10.1073/pnas.80.20.6229. [DOI] [PMC free article] [PubMed] [Google Scholar]
  56. Steward R. Dorsal, an embryonic polarity gene in Drosophila, is homologous to the vertebrate proto-oncogene, c-rel. Science. 1987 Oct 30;238(4827):692–694. doi: 10.1126/science.3118464. [DOI] [PubMed] [Google Scholar]
  57. Strickland S., Smith K. K., Marotti K. R. Hormonal induction of differentiation in teratocarcinoma stem cells: generation of parietal endoderm by retinoic acid and dibutyryl cAMP. Cell. 1980 Sep;21(2):347–355. doi: 10.1016/0092-8674(80)90471-7. [DOI] [PubMed] [Google Scholar]
  58. Sundström C., Nilsson K. Establishment and characterization of a human histiocytic lymphoma cell line (U-937). Int J Cancer. 1976 May 15;17(5):565–577. doi: 10.1002/ijc.2910170504. [DOI] [PubMed] [Google Scholar]
  59. Sylla B. S., Temin H. M. Activation of oncogenicity of the c-rel proto-oncogene. Mol Cell Biol. 1986 Dec;6(12):4709–4716. doi: 10.1128/mcb.6.12.4709. [DOI] [PMC free article] [PubMed] [Google Scholar]
  60. Tsuchiya S., Yamabe M., Yamaguchi Y., Kobayashi Y., Konno T., Tada K. Establishment and characterization of a human acute monocytic leukemia cell line (THP-1). Int J Cancer. 1980 Aug;26(2):171–176. doi: 10.1002/ijc.2910260208. [DOI] [PubMed] [Google Scholar]
  61. Watanabe S., Temin H. M. Construction of a helper cell line for avian reticuloendotheliosis virus cloning vectors. Mol Cell Biol. 1983 Dec;3(12):2241–2249. doi: 10.1128/mcb.3.12.2241. [DOI] [PMC free article] [PubMed] [Google Scholar]
  62. Wilhelmsen K. C., Eggleton K., Temin H. M. Nucleic acid sequences of the oncogene v-rel in reticuloendotheliosis virus strain T and its cellular homolog, the proto-oncogene c-rel. J Virol. 1984 Oct;52(1):172–182. doi: 10.1128/jvi.52.1.172-182.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  63. Zabel U., Baeuerle P. A. Purified human I kappa B can rapidly dissociate the complex of the NF-kappa B transcription factor with its cognate DNA. Cell. 1990 Apr 20;61(2):255–265. doi: 10.1016/0092-8674(90)90806-p. [DOI] [PubMed] [Google Scholar]

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