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. 1994 Jan;14(1):803–814. doi: 10.1128/mcb.14.1.803

Functional analysis of the V gamma 3 promoter of the murine gamma delta T-cell receptor.

A Clausell 1, P W Tucker 1
PMCID: PMC358428  PMID: 8264647

Abstract

The initial day 14 wave of fetal thymocytes express a gamma delta T-cell receptor (TCR). This surface TCR is generated by preferential rearrangement of V gamma 3 and V delta 1 recombination segments. To delineate the role of regulatory sequences in this expression, we have analyzed the V gamma 3 promoter control region under the regulation of its cognate C gamma 1 enhancer. Transcription initiates 25 bases downstream from a TATTAA sequence at a consensus initiator motif. The minimal 5' promoter sequences supporting expression by transient analysis extend -243 nucleotides from the +1 start site. Three regulatory sequences in this region have been defined by deletion and mutagenesis: a consensus CTF/NF-1 site at -55, an Ets homology sequence at -65, and a degenerate, but crucial, SP-1 site at -100. The presence of additional sequences downstream of the start site which extend through the leader intron were necessary for expression. In contrast to other TCR or immunoglobulin variable regions, one or more strong upstream suppressor sequences resembling silencer elements have been observed. A 311-bp fragment, positions -586 to -897, exhibited strong repressing activity regardless of orientation when placed upstream of heterologous promoters.

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Selected References

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  1. Allison J. P., Havran W. L. The immunobiology of T cells with invariant gamma delta antigen receptors. Annu Rev Immunol. 1991;9:679–705. doi: 10.1146/annurev.iy.09.040191.003335. [DOI] [PubMed] [Google Scholar]
  2. Anderson S. J., Miyake S., Loh D. Y. Transcription from a murine T-cell receptor V beta promoter depends on a conserved decamer motif similar to the cyclic AMP response element. Mol Cell Biol. 1989 Nov;9(11):4835–4845. doi: 10.1128/mcb.9.11.4835. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Aplan P. D., Nakahara K., Orkin S. H., Kirsch I. R. The SCL gene product: a positive regulator of erythroid differentiation. EMBO J. 1992 Nov;11(11):4073–4081. doi: 10.1002/j.1460-2075.1992.tb05500.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Arceci R. J., King A. A., Simon M. C., Orkin S. H., Wilson D. B. Mouse GATA-4: a retinoic acid-inducible GATA-binding transcription factor expressed in endodermally derived tissues and heart. Mol Cell Biol. 1993 Apr;13(4):2235–2246. doi: 10.1128/mcb.13.4.2235. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Asarnow D. M., Kuziel W. A., Bonyhadi M., Tigelaar R. E., Tucker P. W., Allison J. P. Limited diversity of gamma delta antigen receptor genes of Thy-1+ dendritic epidermal cells. Cell. 1988 Dec 2;55(5):837–847. doi: 10.1016/0092-8674(88)90139-0. [DOI] [PubMed] [Google Scholar]
  6. Banerji J., Olson L., Schaffner W. A lymphocyte-specific cellular enhancer is located downstream of the joining region in immunoglobulin heavy chain genes. Cell. 1983 Jul;33(3):729–740. doi: 10.1016/0092-8674(83)90015-6. [DOI] [PubMed] [Google Scholar]
  7. Berry M., Grosveld F., Dillon N. A single point mutation is the cause of the Greek form of hereditary persistence of fetal haemoglobin. Nature. 1992 Aug 6;358(6386):499–502. doi: 10.1038/358499a0. [DOI] [PubMed] [Google Scholar]
  8. Bhat N. K., Thompson C. B., Lindsten T., June C. H., Fujiwara S., Koizumi S., Fisher R. J., Papas T. S. Reciprocal expression of human ETS1 and ETS2 genes during T-cell activation: regulatory role for the protooncogene ETS1. Proc Natl Acad Sci U S A. 1990 May;87(10):3723–3727. doi: 10.1073/pnas.87.10.3723. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Blake M. C., Jambou R. C., Swick A. G., Kahn J. W., Azizkhan J. C. Transcriptional initiation is controlled by upstream GC-box interactions in a TATAA-less promoter. Mol Cell Biol. 1990 Dec;10(12):6632–6641. doi: 10.1128/mcb.10.12.6632. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Bories J. C., Loiseau P., d'Auriol L., Gontier C., Bensussan A., Degos L., Sigaux F. Regulation of transcription of the human T cell antigen receptor delta chain gene. A T lineage-specific enhancer element is located in the J delta 3-C delta intron. J Exp Med. 1990 Jan 1;171(1):75–83. doi: 10.1084/jem.171.1.75. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Carroll A. M., Bosma M. J. T-lymphocyte development in scid mice is arrested shortly after the initiation of T-cell receptor delta gene recombination. Genes Dev. 1991 Aug;5(8):1357–1366. doi: 10.1101/gad.5.8.1357. [DOI] [PubMed] [Google Scholar]
  12. Chomczynski P., Sacchi N. Single-step method of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction. Anal Biochem. 1987 Apr;162(1):156–159. doi: 10.1006/abio.1987.9999. [DOI] [PubMed] [Google Scholar]
  13. 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]
  14. Domdey H., Apostol B., Lin R. J., Newman A., Brody E., Abelson J. Lariat structures are in vivo intermediates in yeast pre-mRNA splicing. Cell. 1984 Dec;39(3 Pt 2):611–621. doi: 10.1016/0092-8674(84)90468-9. [DOI] [PubMed] [Google Scholar]
  15. Engler P., Roth P., Kim J. Y., Storb U. Factors affecting the rearrangement efficiency of an Ig test gene. J Immunol. 1991 Apr 15;146(8):2826–2835. [PubMed] [Google Scholar]
  16. Ferrier P., Krippl B., Blackwell T. K., Furley A. J., Suh H., Winoto A., Cook W. D., Hood L., Costantini F., Alt F. W. Separate elements control DJ and VDJ rearrangement in a transgenic recombination substrate. EMBO J. 1990 Jan;9(1):117–125. doi: 10.1002/j.1460-2075.1990.tb08087.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Fondell J. D., Marcu K. B. Transcription of germ line V alpha segments correlates with ongoing T-cell receptor alpha-chain rearrangement. Mol Cell Biol. 1992 Apr;12(4):1480–1489. doi: 10.1128/mcb.12.4.1480. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Garman R. D., Doherty P. J., Raulet D. H. Diversity, rearrangement, and expression of murine T cell gamma genes. Cell. 1986 Jun 6;45(5):733–742. doi: 10.1016/0092-8674(86)90787-7. [DOI] [PubMed] [Google Scholar]
  19. Giese K., Cox J., Grosschedl R. The HMG domain of lymphoid enhancer factor 1 bends DNA and facilitates assembly of functional nucleoprotein structures. Cell. 1992 Apr 3;69(1):185–195. doi: 10.1016/0092-8674(92)90129-z. [DOI] [PubMed] [Google Scholar]
  20. Gil G., Smith J. R., Goldstein J. L., Slaughter C. A., Orth K., Brown M. S., Osborne T. F. Multiple genes encode nuclear factor 1-like proteins that bind to the promoter for 3-hydroxy-3-methylglutaryl-coenzyme A reductase. Proc Natl Acad Sci U S A. 1988 Dec;85(23):8963–8967. doi: 10.1073/pnas.85.23.8963. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Gillies S. D., Morrison S. L., Oi V. T., Tonegawa S. A tissue-specific transcription enhancer element is located in the major intron of a rearranged immunoglobulin heavy chain gene. Cell. 1983 Jul;33(3):717–728. doi: 10.1016/0092-8674(83)90014-4. [DOI] [PubMed] [Google Scholar]
  22. Goldman J. P., Spencer D. M., Raulet D. H. Ordered rearrangement of variable region genes of the T cell receptor gamma locus correlates with transcription of the unrearranged genes. J Exp Med. 1993 Mar 1;177(3):729–739. doi: 10.1084/jem.177.3.729. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Gorman C. M., Moffat L. F., Howard B. H. Recombinant genomes which express chloramphenicol acetyltransferase in mammalian cells. Mol Cell Biol. 1982 Sep;2(9):1044–1051. doi: 10.1128/mcb.2.9.1044. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Gottschalk L. R., Leiden J. M. Identification and functional characterization of the human T-cell receptor beta gene transcriptional enhancer: common nuclear proteins interact with the transcriptional regulatory elements of the T-cell receptor alpha and beta genes. Mol Cell Biol. 1990 Oct;10(10):5486–5495. doi: 10.1128/mcb.10.10.5486. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Hagman J., Grosschedl R. An inhibitory carboxyl-terminal domain in Ets-1 and Ets-2 mediates differential binding of ETS family factors to promoter sequences of the mb-1 gene. Proc Natl Acad Sci U S A. 1992 Oct 1;89(19):8889–8893. doi: 10.1073/pnas.89.19.8889. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. Havran W. L., Allison J. P. Developmentally ordered appearance of thymocytes expressing different T-cell antigen receptors. Nature. 1988 Sep 29;335(6189):443–445. doi: 10.1038/335443a0. [DOI] [PubMed] [Google Scholar]
  27. Havran W. L., Allison J. P. Origin of Thy-1+ dendritic epidermal cells of adult mice from fetal thymic precursors. Nature. 1990 Mar 1;344(6261):68–70. doi: 10.1038/344068a0. [DOI] [PubMed] [Google Scholar]
  28. Havran W. L., Chien Y. H., Allison J. P. Recognition of self antigens by skin-derived T cells with invariant gamma delta antigen receptors. Science. 1991 Jun 7;252(5011):1430–1432. doi: 10.1126/science.1828619. [DOI] [PubMed] [Google Scholar]
  29. Hemsley A., Arnheim N., Toney M. D., Cortopassi G., Galas D. J. A simple method for site-directed mutagenesis using the polymerase chain reaction. Nucleic Acids Res. 1989 Aug 25;17(16):6545–6551. doi: 10.1093/nar/17.16.6545. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Hipskind R. A., Rao V. N., Mueller C. G., Reddy E. S., Nordheim A. Ets-related protein Elk-1 is homologous to the c-fos regulatory factor p62TCF. Nature. 1991 Dec 19;354(6354):531–534. doi: 10.1038/354531a0. [DOI] [PubMed] [Google Scholar]
  31. Ho I. C., Bhat N. K., Gottschalk L. R., Lindsten T., Thompson C. B., Papas T. S., Leiden J. M. Sequence-specific binding of human Ets-1 to the T cell receptor alpha gene enhancer. Science. 1990 Nov 9;250(4982):814–818. doi: 10.1126/science.2237431. [DOI] [PubMed] [Google Scholar]
  32. Ho I. C., Leiden J. M. The T alpha 2 nuclear protein binding site from the human T cell receptor alpha enhancer functions as both a T cell-specific transcriptional activator and repressor. J Exp Med. 1990 Nov 1;172(5):1443–1449. doi: 10.1084/jem.172.5.1443. [DOI] [PMC free article] [PubMed] [Google Scholar]
  33. Ho I. C., Vorhees P., Marin N., Oakley B. K., Tsai S. F., Orkin S. H., Leiden J. M. Human GATA-3: a lineage-restricted transcription factor that regulates the expression of the T cell receptor alpha gene. EMBO J. 1991 May;10(5):1187–1192. doi: 10.1002/j.1460-2075.1991.tb08059.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Hollon T., Yoshimura F. K. Variation in enzymatic transient gene expression assays. Anal Biochem. 1989 Nov 1;182(2):411–418. doi: 10.1016/0003-2697(89)90616-7. [DOI] [PubMed] [Google Scholar]
  35. Hsiang Y. H., Spencer D., Wang S., Speck N. A., Raulet D. H. The role of viral enhancer "core" motif-related sequences in regulating T cell receptor-gamma and -delta gene expression. J Immunol. 1993 May 1;150(9):3905–3916. [PubMed] [Google Scholar]
  36. Ishida I., Verbeek S., Bonneville M., Itohara S., Berns A., Tonegawa S. T-cell receptor gamma delta and gamma transgenic mice suggest a role of a gamma gene silencer in the generation of alpha beta T cells. Proc Natl Acad Sci U S A. 1990 Apr;87(8):3067–3071. doi: 10.1073/pnas.87.8.3067. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Ito K., Bonneville M., Takagaki Y., Nakanishi N., Kanagawa O., Krecko E. G., Tonegawa S. Different gamma delta T-cell receptors are expressed on thymocytes at different stages of development. Proc Natl Acad Sci U S A. 1989 Jan;86(2):631–635. doi: 10.1073/pnas.86.2.631. [DOI] [PMC free article] [PubMed] [Google Scholar]
  38. Itohara S., Farr A. G., Lafaille J. J., Bonneville M., Takagaki Y., Haas W., Tonegawa S. Homing of a gamma delta thymocyte subset with homogeneous T-cell receptors to mucosal epithelia. Nature. 1990 Feb 22;343(6260):754–757. doi: 10.1038/343754a0. [DOI] [PubMed] [Google Scholar]
  39. Itohara S., Mombaerts P., Lafaille J., Iacomini J., Nelson A., Clarke A. R., Hooper M. L., Farr A., Tonegawa S. T cell receptor delta gene mutant mice: independent generation of alpha beta T cells and programmed rearrangements of gamma delta TCR genes. Cell. 1993 Feb 12;72(3):337–348. doi: 10.1016/0092-8674(93)90112-4. [DOI] [PubMed] [Google Scholar]
  40. Jackson S. P., MacDonald J. J., Lees-Miller S., Tjian R. GC box binding induces phosphorylation of Sp1 by a DNA-dependent protein kinase. Cell. 1990 Oct 5;63(1):155–165. doi: 10.1016/0092-8674(90)90296-q. [DOI] [PubMed] [Google Scholar]
  41. Jones K. A., Kadonaga J. T., Rosenfeld P. J., Kelly T. J., Tjian R. A cellular DNA-binding protein that activates eukaryotic transcription and DNA replication. Cell. 1987 Jan 16;48(1):79–89. doi: 10.1016/0092-8674(87)90358-8. [DOI] [PubMed] [Google Scholar]
  42. Jones K. A., Yamamoto K. R., Tjian R. Two distinct transcription factors bind to the HSV thymidine kinase promoter in vitro. Cell. 1985 Sep;42(2):559–572. doi: 10.1016/0092-8674(85)90113-8. [DOI] [PubMed] [Google Scholar]
  43. Kadonaga J. T., Courey A. J., Ladika J., Tjian R. Distinct regions of Sp1 modulate DNA binding and transcriptional activation. Science. 1988 Dec 16;242(4885):1566–1570. doi: 10.1126/science.3059495. [DOI] [PubMed] [Google Scholar]
  44. Kappes D. J., Browne C. P., Tonegawa S. Identification of a T-cell-specific enhancer at the locus encoding T-cell antigen receptor gamma chain. Proc Natl Acad Sci U S A. 1991 Mar 15;88(6):2204–2208. doi: 10.1073/pnas.88.6.2204. [DOI] [PMC free article] [PubMed] [Google Scholar]
  45. Kingsley C., Winoto A. Cloning of GT box-binding proteins: a novel Sp1 multigene family regulating T-cell receptor gene expression. Mol Cell Biol. 1992 Oct;12(10):4251–4261. doi: 10.1128/mcb.12.10.4251. [DOI] [PMC free article] [PubMed] [Google Scholar]
  46. Ko L. J., Yamamoto M., Leonard M. W., George K. M., Ting P., Engel J. D. Murine and human T-lymphocyte GATA-3 factors mediate transcription through a cis-regulatory element within the human T-cell receptor delta gene enhancer. Mol Cell Biol. 1991 May;11(5):2778–2784. doi: 10.1128/mcb.11.5.2778. [DOI] [PMC free article] [PubMed] [Google Scholar]
  47. Kuziel W. A., Takashima A., Bonyhadi M., Bergstresser P. R., Allison J. P., Tigelaar R. E., Tucker P. W. Regulation of T-cell receptor gamma-chain RNA expression in murine Thy-1+ dendritic epidermal cells. Nature. 1987 Jul 16;328(6127):263–266. doi: 10.1038/328263a0. [DOI] [PubMed] [Google Scholar]
  48. Lafaille J. J., DeCloux A., Bonneville M., Takagaki Y., Tonegawa S. Junctional sequences of T cell receptor gamma delta genes: implications for gamma delta T cell lineages and for a novel intermediate of V-(D)-J joining. Cell. 1989 Dec 1;59(5):859–870. doi: 10.1016/0092-8674(89)90609-0. [DOI] [PubMed] [Google Scholar]
  49. Leiden J. M. Transcriptional regulation during T-cell development: the alpha TCR gene as a molecular model. Immunol Today. 1992 Jan;13(1):22–30. doi: 10.1016/0167-5699(92)90200-q. [DOI] [PubMed] [Google Scholar]
  50. Luckow B., Schütz G. CAT constructions with multiple unique restriction sites for the functional analysis of eukaryotic promoters and regulatory elements. Nucleic Acids Res. 1987 Jul 10;15(13):5490–5490. doi: 10.1093/nar/15.13.5490. [DOI] [PMC free article] [PubMed] [Google Scholar]
  51. Marine J., Winoto A. The human enhancer-binding protein Gata3 binds to several T-cell receptor regulatory elements. Proc Natl Acad Sci U S A. 1991 Aug 15;88(16):7284–7288. doi: 10.1073/pnas.88.16.7284. [DOI] [PMC free article] [PubMed] [Google Scholar]
  52. Martin D. I., Tsai S. F., Orkin S. H. Increased gamma-globin expression in a nondeletion HPFH mediated by an erythroid-specific DNA-binding factor. Nature. 1989 Mar 30;338(6214):435–438. doi: 10.1038/338435a0. [DOI] [PubMed] [Google Scholar]
  53. Medina C. A., Teale J. M. Restricted kappa chain expression in early ontogeny: biased utilization of V kappa exons and preferential V kappa-J kappa recombinations. J Exp Med. 1993 May 1;177(5):1317–1330. doi: 10.1084/jem.177.5.1317. [DOI] [PMC free article] [PubMed] [Google Scholar]
  54. Mul Y. M., Van der Vliet P. C. Nuclear factor I enhances adenovirus DNA replication by increasing the stability of a preinitiation complex. EMBO J. 1992 Feb;11(2):751–760. doi: 10.1002/j.1460-2075.1992.tb05108.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  55. Nixon-Fulton J. L., Kuziel W. A., Santerse B., Bergstresser P. R., Tucker P. W., Tigelaar R. E. Thy-1+ epidermal cells in nude mice are distinct from their counterparts in thymus-bearing mice. A study of morphology, function, and T cell receptor expression. J Immunol. 1988 Sep 15;141(6):1897–1903. [PubMed] [Google Scholar]
  56. O'Brien R. L., Fu Y. X., Cranfill R., Dallas A., Ellis C., Reardon C., Lang J., Carding S. R., Kubo R., Born W. Heat shock protein Hsp60-reactive gamma delta cells: a large, diversified T-lymphocyte subset with highly focused specificity. Proc Natl Acad Sci U S A. 1992 May 15;89(10):4348–4352. doi: 10.1073/pnas.89.10.4348. [DOI] [PMC free article] [PubMed] [Google Scholar]
  57. Pardoll D. M., Fowlkes B. J., Bluestone J. A., Kruisbeek A., Maloy W. L., Coligan J. E., Schwartz R. H. Differential expression of two distinct T-cell receptors during thymocyte development. Nature. 1987 Mar 5;326(6108):79–81. doi: 10.1038/326079a0. [DOI] [PubMed] [Google Scholar]
  58. Philipsen S., Pruzina S., Grosveld F. The minimal requirements for activity in transgenic mice of hypersensitive site 3 of the beta globin locus control region. EMBO J. 1993 Mar;12(3):1077–1085. doi: 10.1002/j.1460-2075.1993.tb05749.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  59. Philipsen S., Talbot D., Fraser P., Grosveld F. The beta-globin dominant control region: hypersensitive site 2. EMBO J. 1990 Jul;9(7):2159–2167. doi: 10.1002/j.1460-2075.1990.tb07385.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  60. Queen C., Baltimore D. Immunoglobulin gene transcription is activated by downstream sequence elements. Cell. 1983 Jul;33(3):741–748. doi: 10.1016/0092-8674(83)90016-8. [DOI] [PubMed] [Google Scholar]
  61. Queen C., Stafford J. Fine mapping of an immunoglobulin gene activator. Mol Cell Biol. 1984 Jun;4(6):1042–1049. doi: 10.1128/mcb.4.6.1042. [DOI] [PMC free article] [PubMed] [Google Scholar]
  62. Raulet D. H., Garman R. D., Saito H., Tonegawa S. Developmental regulation of T-cell receptor gene expression. Nature. 1985 Mar 7;314(6006):103–107. doi: 10.1038/314103a0. [DOI] [PubMed] [Google Scholar]
  63. Raulet D. H., Spencer D. M., Hsiang Y. H., Goldman J. P., Bix M., Liao N. S., Zijstra M., Jaenisch R., Correa I. Control of gamma delta T-cell development. Immunol Rev. 1991 Apr;120:185–204. doi: 10.1111/j.1600-065x.1991.tb00592.x. [DOI] [PubMed] [Google Scholar]
  64. Redondo J. M., Hata S., Brocklehurst C., Krangel M. S. A T cell-specific transcriptional enhancer within the human T cell receptor delta locus. Science. 1990 Mar 9;247(4947):1225–1229. doi: 10.1126/science.2156339. [DOI] [PubMed] [Google Scholar]
  65. Redondo J. M., Pfohl J. L., Hernandez-Munain C., Wang S., Speck N. A., Krangel M. S. Indistinguishable nuclear factor binding to functional core sites of the T-cell receptor delta and murine leukemia virus enhancers. Mol Cell Biol. 1992 Nov;12(11):4817–4823. doi: 10.1128/mcb.12.11.4817. [DOI] [PMC free article] [PubMed] [Google Scholar]
  66. Redondo J. M., Pfohl J. L., Krangel M. S. Identification of an essential site for transcriptional activation within the human T-cell receptor delta enhancer. Mol Cell Biol. 1991 Nov;11(11):5671–5680. doi: 10.1128/mcb.11.11.5671. [DOI] [PMC free article] [PubMed] [Google Scholar]
  67. Rosenfeld P. J., O'Neill E. A., Wides R. J., Kelly T. J. Sequence-specific interactions between cellular DNA-binding proteins and the adenovirus origin of DNA replication. Mol Cell Biol. 1987 Feb;7(2):875–886. doi: 10.1128/mcb.7.2.875. [DOI] [PMC free article] [PubMed] [Google Scholar]
  68. Saffer J. D., Jackson S. P., Annarella M. B. Developmental expression of Sp1 in the mouse. Mol Cell Biol. 1991 Apr;11(4):2189–2199. doi: 10.1128/mcb.11.4.2189. [DOI] [PMC free article] [PubMed] [Google Scholar]
  69. Santoro C., Mermod N., Andrews P. C., Tjian R. A family of human CCAAT-box-binding proteins active in transcription and DNA replication: cloning and expression of multiple cDNAs. Nature. 1988 Jul 21;334(6179):218–224. doi: 10.1038/334218a0. [DOI] [PubMed] [Google Scholar]
  70. Shin T. H., Paterson A. J., Grant J. H., 3rd, Meluch A. A., Kudlow J. E. 5-Azacytidine treatment of HA-A melanoma cells induces Sp1 activity and concomitant transforming growth factor alpha expression. Mol Cell Biol. 1992 Sep;12(9):3998–4006. doi: 10.1128/mcb.12.9.3998. [DOI] [PMC free article] [PubMed] [Google Scholar]
  71. Smale S. T., Baltimore D. The "initiator" as a transcription control element. Cell. 1989 Apr 7;57(1):103–113. doi: 10.1016/0092-8674(89)90176-1. [DOI] [PubMed] [Google Scholar]
  72. Spanopoulou E., Giguere V., Grosveld F. The functional domains of the murine Thy-1 gene promoter. Mol Cell Biol. 1991 Apr;11(4):2216–2228. doi: 10.1128/mcb.11.4.2216. [DOI] [PMC free article] [PubMed] [Google Scholar]
  73. Spencer D. M., Hsiang Y. H., Goldman J. P., Raulet D. H. Identification of a T-cell-specific transcriptional enhancer located 3' of C gamma 1 in the murine T-cell receptor gamma locus. Proc Natl Acad Sci U S A. 1991 Feb 1;88(3):800–804. doi: 10.1073/pnas.88.3.800. [DOI] [PMC free article] [PubMed] [Google Scholar]
  74. Stief A., Winter D. M., Strätling W. H., Sippel A. E. A nuclear DNA attachment element mediates elevated and position-independent gene activity. Nature. 1989 Sep 28;341(6240):343–345. doi: 10.1038/341343a0. [DOI] [PubMed] [Google Scholar]
  75. Takeda J., Cheng A., Mauxion F., Nelson C. A., Newberry R. D., Sha W. C., Sen R., Loh D. Y. Functional analysis of the murine T-cell receptor beta enhancer and characteristics of its DNA-binding proteins. Mol Cell Biol. 1990 Oct;10(10):5027–5035. doi: 10.1128/mcb.10.10.5027. [DOI] [PMC free article] [PubMed] [Google Scholar]
  76. Travis A., Amsterdam A., Belanger C., Grosschedl R. LEF-1, a gene encoding a lymphoid-specific protein with an HMG domain, regulates T-cell receptor alpha enhancer function [corrected]. Genes Dev. 1991 May;5(5):880–894. doi: 10.1101/gad.5.5.880. [DOI] [PubMed] [Google Scholar]
  77. Wang S., Wang Q., Crute B. E., Melnikova I. N., Keller S. R., Speck N. A. Cloning and characterization of subunits of the T-cell receptor and murine leukemia virus enhancer core-binding factor. Mol Cell Biol. 1993 Jun;13(6):3324–3339. doi: 10.1128/mcb.13.6.3324. [DOI] [PMC free article] [PubMed] [Google Scholar]
  78. Wasylyk C., Gutman A., Nicholson R., Wasylyk B. The c-Ets oncoprotein activates the stromelysin promoter through the same elements as several non-nuclear oncoproteins. EMBO J. 1991 May;10(5):1127–1134. doi: 10.1002/j.1460-2075.1991.tb08053.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  79. Winoto A., Baltimore D. Alpha beta lineage-specific expression of the alpha T cell receptor gene by nearby silencers. Cell. 1989 Nov 17;59(4):649–655. doi: 10.1016/0092-8674(89)90010-x. [DOI] [PubMed] [Google Scholar]
  80. Xin J. H., Cowie A., Lachance P., Hassell J. A. Molecular cloning and characterization of PEA3, a new member of the Ets oncogene family that is differentially expressed in mouse embryonic cells. Genes Dev. 1992 Mar;6(3):481–496. doi: 10.1101/gad.6.3.481. [DOI] [PubMed] [Google Scholar]
  81. von Boehmer H. Thymic selection: a matter of life and death. Immunol Today. 1992 Nov;13(11):454–458. doi: 10.1016/0167-5699(92)90075-I. [DOI] [PubMed] [Google Scholar]

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