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. 1992 Jul;12(7):3107–3116. doi: 10.1128/mcb.12.7.3107

Oct2 transactivation from a remote enhancer position requires a B-cell-restricted activity.

A Annweiler 1, M Müller-Immerglück 1, T Wirth 1
PMCID: PMC364525  PMID: 1620119

Abstract

Previous cotransfection experiments had demonstrated that ectopic expression of the lymphocyte-specific transcription factor Oct2 could efficiently activate a promoter containing an octamer motif. Oct2 expression was unable to stimulate a multimerized octamer enhancer element in HeLa cells, however. We have tested a variety of Oct2 isoforms generated by alternative splicing for the capability to activate an octamer enhancer in nonlymphoid cells and a B-cell line. Our analyses show that several Oct2 isoforms can stimulate from a remote position but that this stimulation is restricted to B cells. This result indicates the involvement of either a B-cell-specific cofactor or a specific modification of a cofactor or the Oct2 protein in Oct2-mediated enhancer activation. Mutational analyses indicate that the carboxy-terminal domain of Oct2 is critical for enhancer activation. Moreover, this domain conferred enhancing activity when fused to the Oct1 protein, which by itself was unable to stimulate from a remote position. The glutamine-rich activation domain present in the amino-terminal portion of Oct2 and the POU domain contribute only marginally to the transactivation function from a distal position.

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Selected References

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

  1. Annweiler A., Müller U., Wirth T. Functional analysis of defined mutations in the immunoglobulin heavy-chain enhancer in transgenic mice. Nucleic Acids Res. 1992 Apr 11;20(7):1503–1509. doi: 10.1093/nar/20.7.1503. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Clerc R. G., Corcoran L. M., LeBowitz J. H., Baltimore D., Sharp P. A. The B-cell-specific Oct-2 protein contains POU box- and homeo box-type domains. Genes Dev. 1988 Dec;2(12A):1570–1581. doi: 10.1101/gad.2.12a.1570. [DOI] [PubMed] [Google Scholar]
  3. Courey A. J., Holtzman D. A., Jackson S. P., Tjian R. Synergistic activation by the glutamine-rich domains of human transcription factor Sp1. Cell. 1989 Dec 1;59(5):827–836. doi: 10.1016/0092-8674(89)90606-5. [DOI] [PubMed] [Google Scholar]
  4. Currie R. A., Roeder R. G. Identification of an octamer-binding site in the mouse kappa light-chain immunoglobulin enhancer. Mol Cell Biol. 1989 Oct;9(10):4239–4247. doi: 10.1128/mcb.9.10.4239. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Daley G. Q., Van Etten R. A., Baltimore D. Induction of chronic myelogenous leukemia in mice by the P210bcr/abl gene of the Philadelphia chromosome. Science. 1990 Feb 16;247(4944):824–830. doi: 10.1126/science.2406902. [DOI] [PubMed] [Google Scholar]
  6. Dignam J. D., Lebovitz R. M., Roeder R. G. Accurate transcription initiation by RNA polymerase II in a soluble extract from isolated mammalian nuclei. Nucleic Acids Res. 1983 Mar 11;11(5):1475–1489. doi: 10.1093/nar/11.5.1475. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Falkner F. G., Zachau H. G. Correct transcription of an immunoglobulin kappa gene requires an upstream fragment containing conserved sequence elements. Nature. 1984 Jul 5;310(5972):71–74. doi: 10.1038/310071a0. [DOI] [PubMed] [Google Scholar]
  8. Forsberg M., Westin G. Enhancer activation by a single type of transcription factor shows cell type dependence. EMBO J. 1991 Sep;10(9):2543–2551. doi: 10.1002/j.1460-2075.1991.tb07794.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Gerster T., Balmaceda C. G., Roeder R. G. The cell type-specific octamer transcription factor OTF-2 has two domains required for the activation of transcription. EMBO J. 1990 May;9(5):1635–1643. doi: 10.1002/j.1460-2075.1990.tb08283.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Gerster T., Matthias P., Thali M., Jiricny J., Schaffner W. Cell type-specificity elements of the immunoglobulin heavy chain gene enhancer. EMBO J. 1987 May;6(5):1323–1330. doi: 10.1002/j.1460-2075.1987.tb02371.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Giri I., Yaniv M. Structural and mutational analysis of E2 trans-activating proteins of papillomaviruses reveals three distinct functional domains. EMBO J. 1988 Sep;7(9):2823–2829. doi: 10.1002/j.1460-2075.1988.tb03138.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Ham J., Dostatni N., Arnos F., Yaniv M. Several different upstream promoter elements can potentiate transactivation by the BPV-1 E2 protein. EMBO J. 1991 Oct;10(10):2931–2940. doi: 10.1002/j.1460-2075.1991.tb07843.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Hen R., Borrelli E., Chambon P. Repression of the immunoglobulin heavy chain enhancer by the adenovirus-2 E1A products. Science. 1985 Dec 20;230(4732):1391–1394. doi: 10.1126/science.2999984. [DOI] [PubMed] [Google Scholar]
  14. Herbomel P., Bourachot B., Yaniv M. Two distinct enhancers with different cell specificities coexist in the regulatory region of polyoma. Cell. 1984 Dec;39(3 Pt 2):653–662. doi: 10.1016/0092-8674(84)90472-0. [DOI] [PubMed] [Google Scholar]
  15. Hermanson G. G., Briskin M., Sigman D., Wall R. Immunoglobulin enhancer and promoter motifs 5' of the B29 B-cell-specific gene. Proc Natl Acad Sci U S A. 1989 Oct;86(19):7341–7345. doi: 10.1073/pnas.86.19.7341. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Herr W., Sturm R. A., Clerc R. G., Corcoran L. M., Baltimore D., Sharp P. A., Ingraham H. A., Rosenfeld M. G., Finney M., Ruvkun G. The POU domain: a large conserved region in the mammalian pit-1, oct-1, oct-2, and Caenorhabditis elegans unc-86 gene products. Genes Dev. 1988 Dec;2(12A):1513–1516. doi: 10.1101/gad.2.12a.1513. [DOI] [PubMed] [Google Scholar]
  17. Junker S., Pedersen S., Schreiber E., Matthias P. Extinction of an immunoglobulin kappa promoter in cell hybrids is mediated by the octamer motif and correlates with suppression of Oct-2 expression. Cell. 1990 May 4;61(3):467–474. doi: 10.1016/0092-8674(90)90528-m. [DOI] [PubMed] [Google Scholar]
  18. Kemler I., Bucher E., Seipel K., Müller-Immerglück M. M., Schaffner W. Promoters with the octamer DNA motif (ATGCAAAT) can be ubiquitous or cell type-specific depending on binding affinity of the octamer site and Oct-factor concentration. Nucleic Acids Res. 1991 Jan 25;19(2):237–242. doi: 10.1093/nar/19.2.237. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. LaBella F., Sive H. L., Roeder R. G., Heintz N. Cell-cycle regulation of a human histone H2b gene is mediated by the H2b subtype-specific consensus element. Genes Dev. 1988 Jan;2(1):32–39. doi: 10.1101/gad.2.1.32. [DOI] [PubMed] [Google Scholar]
  20. Landolfi N. F., Capra J. D., Tucker P. W. Interaction of cell-type-specific nuclear proteins with immunoglobulin VH promoter region sequences. Nature. 1986 Oct 9;323(6088):548–551. doi: 10.1038/323548a0. [DOI] [PubMed] [Google Scholar]
  21. Lenardo M., Pierce J. W., Baltimore D. Protein-binding sites in Ig gene enhancers determine transcriptional activity and inducibility. Science. 1987 Jun 19;236(4808):1573–1577. doi: 10.1126/science.3109035. [DOI] [PubMed] [Google Scholar]
  22. Lewin B. Commitment and activation at pol II promoters: a tail of protein-protein interactions. Cell. 1990 Jun 29;61(7):1161–1164. doi: 10.1016/0092-8674(90)90675-5. [DOI] [PubMed] [Google Scholar]
  23. Mitchell P. J., Tjian R. Transcriptional regulation in mammalian cells by sequence-specific DNA binding proteins. Science. 1989 Jul 28;245(4916):371–378. doi: 10.1126/science.2667136. [DOI] [PubMed] [Google Scholar]
  24. Müller-Immerglück M. M., Schaffner W., Matthias P. Transcription factor Oct-2A contains functionally redundant activating domains and works selectively from a promoter but not from a remote enhancer position in non-lymphoid (HeLa) cells. EMBO J. 1990 May;9(5):1625–1634. doi: 10.1002/j.1460-2075.1990.tb08282.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Müller M. M., Ruppert S., Schaffner W., Matthias P. A cloned octamer transcription factor stimulates transcription from lymphoid-specific promoters in non-B cells. Nature. 1988 Dec 8;336(6199):544–551. doi: 10.1038/336544a0. [DOI] [PubMed] [Google Scholar]
  26. Nelms K., Van Ness B. Identification of an octamer-binding site in the human kappa light-chain enhancer. Mol Cell Biol. 1990 Jul;10(7):3843–3846. doi: 10.1128/mcb.10.7.3843. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Okamoto K., Okazawa H., Okuda A., Sakai M., Muramatsu M., Hamada H. A novel octamer binding transcription factor is differentially expressed in mouse embryonic cells. Cell. 1990 Feb 9;60(3):461–472. doi: 10.1016/0092-8674(90)90597-8. [DOI] [PubMed] [Google Scholar]
  28. Pellett P. E., McKnight J. L., Jenkins F. J., Roizman B. Nucleotide sequence and predicted amino acid sequence of a protein encoded in a small herpes simplex virus DNA fragment capable of trans-inducing alpha genes. Proc Natl Acad Sci U S A. 1985 Sep;82(17):5870–5874. doi: 10.1073/pnas.82.17.5870. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Schatt M. D., Rusconi S., Schaffner W. A single DNA-binding transcription factor is sufficient for activation from a distant enhancer and/or from a promoter position. EMBO J. 1990 Feb;9(2):481–487. doi: 10.1002/j.1460-2075.1990.tb08134.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Scheidereit C., Cromlish J. A., Gerster T., Kawakami K., Balmaceda C. G., Currie R. A., Roeder R. G. A human lymphoid-specific transcription factor that activates immunoglobulin genes is a homoeobox protein. Nature. 1988 Dec 8;336(6199):551–557. doi: 10.1038/336551a0. [DOI] [PubMed] [Google Scholar]
  31. Schöler H. R., Ciesiolka T., Gruss P. A nexus between Oct-4 and E1A: implications for gene regulation in embryonic stem cells. Cell. 1991 Jul 26;66(2):291–304. doi: 10.1016/0092-8674(91)90619-a. [DOI] [PubMed] [Google Scholar]
  32. Sorger P. K., Pelham H. R. Yeast heat shock factor is an essential DNA-binding protein that exhibits temperature-dependent phosphorylation. Cell. 1988 Sep 9;54(6):855–864. doi: 10.1016/s0092-8674(88)91219-6. [DOI] [PubMed] [Google Scholar]
  33. Staudt L. M., Clerc R. G., Singh H., LeBowitz J. H., Sharp P. A., Baltimore D. Cloning of a lymphoid-specific cDNA encoding a protein binding the regulatory octamer DNA motif. Science. 1988 Jul 29;241(4865):577–580. doi: 10.1126/science.3399892. [DOI] [PubMed] [Google Scholar]
  34. Staudt L. M., Singh H., Sen R., Wirth T., Sharp P. A., Baltimore D. A lymphoid-specific protein binding to the octamer motif of immunoglobulin genes. Nature. 1986 Oct 16;323(6089):640–643. doi: 10.1038/323640a0. [DOI] [PubMed] [Google Scholar]
  35. Stern S., Tanaka M., Herr W. The Oct-1 homoeodomain directs formation of a multiprotein-DNA complex with the HSV transactivator VP16. Nature. 1989 Oct 19;341(6243):624–630. doi: 10.1038/341624a0. [DOI] [PubMed] [Google Scholar]
  36. Sterneck E., Müller C., Katz S., Leutz A. Autocrine growth induced by kinase type oncogenes in myeloid cells requires AP-1 and NF-M, a myeloid specific, C/EBP-like factor. EMBO J. 1992 Jan;11(1):115–126. doi: 10.1002/j.1460-2075.1992.tb05034.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Sturm R. A., Das G., Herr W. The ubiquitous octamer-binding protein Oct-1 contains a POU domain with a homeo box subdomain. Genes Dev. 1988 Dec;2(12A):1582–1599. doi: 10.1101/gad.2.12a.1582. [DOI] [PubMed] [Google Scholar]
  38. Suzuki N., Rohdewohld H., Neuman T., Gruss P., Schöler H. R. Oct-6: a POU transcription factor expressed in embryonal stem cells and in the developing brain. EMBO J. 1990 Nov;9(11):3723–3732. doi: 10.1002/j.1460-2075.1990.tb07585.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  39. Tanaka M., Herr W. Differential transcriptional activation by Oct-1 and Oct-2: interdependent activation domains induce Oct-2 phosphorylation. Cell. 1990 Feb 9;60(3):375–386. doi: 10.1016/0092-8674(90)90589-7. [DOI] [PubMed] [Google Scholar]
  40. Tanaka M., Lai J. S., Herr W. Promoter-selective activation domains in Oct-1 and Oct-2 direct differential activation of an snRNA and mRNA promoter. Cell. 1992 Feb 21;68(4):755–767. doi: 10.1016/0092-8674(92)90150-b. [DOI] [PubMed] [Google Scholar]
  41. Wirth T., Baltimore D. Nuclear factor NF-kappa B can interact functionally with its cognate binding site to provide lymphoid-specific promoter function. EMBO J. 1988 Oct;7(10):3109–3113. doi: 10.1002/j.1460-2075.1988.tb03177.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  42. Wirth T., Priess A., Annweiler A., Zwilling S., Oeler B. Multiple Oct2 isoforms are generated by alternative splicing. Nucleic Acids Res. 1991 Jan 11;19(1):43–51. doi: 10.1093/nar/19.1.43. [DOI] [PMC free article] [PubMed] [Google Scholar]
  43. Wirth T., Staudt L., Baltimore D. An octamer oligonucleotide upstream of a TATA motif is sufficient for lymphoid-specific promoter activity. Nature. 1987 Sep 10;329(6135):174–178. doi: 10.1038/329174a0. [DOI] [PubMed] [Google Scholar]
  44. Yamamoto K. K., Gonzalez G. A., Biggs W. H., 3rd, Montminy M. R. Phosphorylation-induced binding and transcriptional efficacy of nuclear factor CREB. Nature. 1988 Aug 11;334(6182):494–498. doi: 10.1038/334494a0. [DOI] [PubMed] [Google Scholar]
  45. Yu H., Porton B., Shen L. Y., Eckhardt L. A. Role of the octamer motif in hybrid cell extinction of immunoglobulin gene expression: extinction is dominant in a two enhancer system. Cell. 1989 Aug 11;58(3):441–448. doi: 10.1016/0092-8674(89)90425-x. [DOI] [PubMed] [Google Scholar]
  46. de Wet J. R., Wood K. V., DeLuca M., Helinski D. R., Subramani S. Firefly luciferase gene: structure and expression in mammalian cells. Mol Cell Biol. 1987 Feb;7(2):725–737. doi: 10.1128/mcb.7.2.725. [DOI] [PMC free article] [PubMed] [Google Scholar]

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