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. 1984 Jul;4(7):1293–1305. doi: 10.1128/mcb.4.7.1293

Transcription control region within the protein-coding portion of adenovirus E1A genes.

T F Osborne, D N Arvidson, E S Tyau, M Dunsworth-Browne, A J Berk
PMCID: PMC368911  PMID: 6334230

Abstract

A single-base deletion within the protein-coding region of the adenovirus type 5 early region 1A (E1A) genes, 399 bases downstream from the transcription start site, depresses transcription to 2% of the wild-type rate. Complementation studies demonstrated that this was due to two effects of the mutation: first, inactivation of an E1A protein, causing a reduction by a factor of 5; second, a defect which acts in cis to depress E1A mRNA and nuclear RNA concentrations by a factor of 10. A larger deletion within the protein-coding region of E1A which overlaps the single-base deletion produces the same phenotype. In contrast, a linker insertion which results in a similar truncated E1A protein does not produce the cis-acting defect in E1A transcription. These results demonstrate that a critical cis-acting transcription control region occurs within the protein coding sequence in adenovirus type 5 E1A. The single-base deletion occurs in a sequence which shows extensive homology with a sequence from the enhancer regions of simian virus 40 and polyomavirus. This region is not required for E1A transcription during the late phase of infection.

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Selected References

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  1. Aiello L., Guilfoyle R., Huebner K., Weinmann R. Adenovirus 5 DNA sequences present and RNA sequences transcribed in transformed human embryo kidney cells (HEK-Ad-5 or 293). Virology. 1979 Apr 30;94(2):460–469. doi: 10.1016/0042-6822(79)90476-8. [DOI] [PubMed] [Google Scholar]
  2. Baker C. C., Ziff E. B. Promoters and heterogeneous 5' termini of the messenger RNAs of adenovirus serotype 2. J Mol Biol. 1981 Jun 25;149(2):189–221. doi: 10.1016/0022-2836(81)90298-9. [DOI] [PubMed] [Google Scholar]
  3. 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]
  4. Banerji J., Rusconi S., Schaffner W. Expression of a beta-globin gene is enhanced by remote SV40 DNA sequences. Cell. 1981 Dec;27(2 Pt 1):299–308. doi: 10.1016/0092-8674(81)90413-x. [DOI] [PubMed] [Google Scholar]
  5. Benoist C., Chambon P. In vivo sequence requirements of the SV40 early promotor region. Nature. 1981 Mar 26;290(5804):304–310. doi: 10.1038/290304a0. [DOI] [PubMed] [Google Scholar]
  6. Berk A. J., Lee F., Harrison T., Williams J., Sharp P. A. Pre-early adenovirus 5 gene product regulates synthesis of early viral messenger RNAs. Cell. 1979 Aug;17(4):935–944. doi: 10.1016/0092-8674(79)90333-7. [DOI] [PubMed] [Google Scholar]
  7. Berk A. J., Sharp P. A. Sizing and mapping of early adenovirus mRNAs by gel electrophoresis of S1 endonuclease-digested hybrids. Cell. 1977 Nov;12(3):721–732. doi: 10.1016/0092-8674(77)90272-0. [DOI] [PubMed] [Google Scholar]
  8. Berk A. J., Sharp P. A. Structure of the adenovirus 2 early mRNAs. Cell. 1978 Jul;14(3):695–711. doi: 10.1016/0092-8674(78)90252-0. [DOI] [PubMed] [Google Scholar]
  9. Blanton R. A., Carter T. H. Autoregulation of adenovirus type 5 early gene expression. III. Transcription studies in isolated nuclei. J Virol. 1979 Feb;29(2):458–465. doi: 10.1128/jvi.29.2.458-465.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Bogenhagen D. F., Sakonju S., Brown D. D. A control region in the center of the 5S RNA gene directs specific initiation of transcription: II. The 3' border of the region. Cell. 1980 Jan;19(1):27–35. doi: 10.1016/0092-8674(80)90385-2. [DOI] [PubMed] [Google Scholar]
  11. 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]
  12. Campo M. S., Spandidos D. A., Lang J., Wilkie N. M. Transcriptional control signals in the genome of bovine papillomavirus type 1. Nature. 1983 May 5;303(5912):77–80. doi: 10.1038/303077a0. [DOI] [PubMed] [Google Scholar]
  13. Carlock L. R., Jones N. C. Transformation-defective mutant of adenovirus type 5 containing a single altered E1a mRNA species. J Virol. 1981 Dec;40(3):657–664. doi: 10.1128/jvi.40.3.657-664.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Chow L. T., Broker T. R., Lewis J. B. Complex splicing patterns of RNAs from the early regions of adenovirus-2. J Mol Biol. 1979 Oct 25;134(2):265–303. doi: 10.1016/0022-2836(79)90036-6. [DOI] [PubMed] [Google Scholar]
  15. Corden J., Wasylyk B., Buchwalder A., Sassone-Corsi P., Kedinger C., Chambon P. Promoter sequences of eukaryotic protein-coding genes. Science. 1980 Sep 19;209(4463):1406–1414. doi: 10.1126/science.6251548. [DOI] [PubMed] [Google Scholar]
  16. Cowie A., Tyndall C., Kamen R. Sequences at the capped 5'-ends of polyoma virus late region mRNAs: an example of extreme terminal heterogeneity. Nucleic Acids Res. 1981 Dec 11;9(23):6305–6322. doi: 10.1093/nar/9.23.6305. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Dierks P., van Ooyen A., Cochran M. D., Dobkin C., Reiser J., Weissmann C. Three regions upstream from the cap site are required for efficient and accurate transcription of the rabbit beta-globin gene in mouse 3T6 cells. Cell. 1983 Mar;32(3):695–706. doi: 10.1016/0092-8674(83)90055-7. [DOI] [PubMed] [Google Scholar]
  18. Dunsworth-Browne M., Schell R. E., Berk A. J. Adenovirus terminal protein protects single stranded DNA from digestion by a cellular exonuclease. Nucleic Acids Res. 1980 Feb 11;8(3):543–554. doi: 10.1093/nar/8.3.543. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Engelke D. R., Ng S. Y., Shastry B. S., Roeder R. G. Specific interaction of a purified transcription factor with an internal control region of 5S RNA genes. Cell. 1980 Mar;19(3):717–728. doi: 10.1016/s0092-8674(80)80048-1. [DOI] [PubMed] [Google Scholar]
  20. Engelke D. R., Ng S. Y., Shastry B. S., Roeder R. G. Specific interaction of a purified transcription factor with an internal control region of 5S RNA genes. Cell. 1980 Mar;19(3):717–728. doi: 10.1016/s0092-8674(80)80048-1. [DOI] [PubMed] [Google Scholar]
  21. Fromm M., Berg P. Deletion mapping of DNA regions required for SV40 early region promoter function in vivo. J Mol Appl Genet. 1982;1(5):457–481. [PubMed] [Google Scholar]
  22. Fromm M., Berg P. Transcription in vivo from SV40 early promoter deletion mutants without repression by large T antigen. J Mol Appl Genet. 1983;2(1):127–135. [PubMed] [Google Scholar]
  23. Frost E., Williams J. Mapping temperature-sensitive and host-range mutations of adenovirus type 5 by marker rescue. Virology. 1978 Nov;91(1):39–50. doi: 10.1016/0042-6822(78)90353-7. [DOI] [PubMed] [Google Scholar]
  24. Gaynor R. B., Berk A. J. Cis-acting induction of adenovirus transcription. Cell. 1983 Jul;33(3):683–693. doi: 10.1016/0092-8674(83)90011-9. [DOI] [PubMed] [Google Scholar]
  25. Ghosh P. K., Lebowitz P., Frisque R. J., Gluzman Y. Identification of a promoter component involved in positioning the 5' termini of simian virus 40 early mRNAs. Proc Natl Acad Sci U S A. 1981 Jan;78(1):100–104. doi: 10.1073/pnas.78.1.100. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. 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]
  27. Gluzman Y. SV40-transformed simian cells support the replication of early SV40 mutants. Cell. 1981 Jan;23(1):175–182. doi: 10.1016/0092-8674(81)90282-8. [DOI] [PubMed] [Google Scholar]
  28. Graham F. L., Smiley J., Russell W. C., Nairn R. Characteristics of a human cell line transformed by DNA from human adenovirus type 5. J Gen Virol. 1977 Jul;36(1):59–74. doi: 10.1099/0022-1317-36-1-59. [DOI] [PubMed] [Google Scholar]
  29. 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]
  30. Green M. R., Treisman R., Maniatis T. Transcriptional activation of cloned human beta-globin genes by viral immediate-early gene products. Cell. 1983 Nov;35(1):137–148. doi: 10.1016/0092-8674(83)90216-7. [DOI] [PubMed] [Google Scholar]
  31. Grodzicker T., Klessig D. F. Expression of unselected adenovirus genes in human cells co-transformed with the HSV-1 tk gene and adenovirus 2 DNA. Cell. 1980 Sep;21(2):453–463. doi: 10.1016/0092-8674(80)90482-1. [DOI] [PubMed] [Google Scholar]
  32. Grosschedl R., Birnstiel M. L. Identification of regulatory sequences in the prelude sequences of an H2A histone gene by the study of specific deletion mutants in vivo. Proc Natl Acad Sci U S A. 1980 Mar;77(3):1432–1436. doi: 10.1073/pnas.77.3.1432. [DOI] [PMC free article] [PubMed] [Google Scholar]
  33. Grosschedl R., Birnstiel M. L. Spacer DNA sequences upstream of the T-A-T-A-A-A-T-A sequence are essential for promotion of H2A histone gene transcription in vivo. Proc Natl Acad Sci U S A. 1980 Dec;77(12):7102–7106. doi: 10.1073/pnas.77.12.7102. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Grosveld G. C., de Boer E., Shewmaker C. K., Flavell R. A. DNA sequences necessary for transcription of the rabbit beta-globin gene in vivo. Nature. 1982 Jan 14;295(5845):120–126. doi: 10.1038/295120a0. [DOI] [PubMed] [Google Scholar]
  35. Gruss P., Dhar R., Khoury G. Simian virus 40 tandem repeated sequences as an element of the early promoter. Proc Natl Acad Sci U S A. 1981 Feb;78(2):943–947. doi: 10.1073/pnas.78.2.943. [DOI] [PMC free article] [PubMed] [Google Scholar]
  36. Hagenbüchle O., Schibler U. Mouse beta-globin and adenovirus-2 major late transcripts are initiated at the cap site in vitro. Proc Natl Acad Sci U S A. 1981 Apr;78(4):2283–2286. doi: 10.1073/pnas.78.4.2283. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Harrison T., Graham F., Williams J. Host-range mutants of adenovirus type 5 defective for growth in HeLa cells. Virology. 1977 Mar;77(1):319–329. doi: 10.1016/0042-6822(77)90428-7. [DOI] [PubMed] [Google Scholar]
  38. Hayatsu H. Bisulfite modification of nucleic acids and their constituents. Prog Nucleic Acid Res Mol Biol. 1976;16:75–124. doi: 10.1016/s0079-6603(08)60756-4. [DOI] [PubMed] [Google Scholar]
  39. Hearing P., Shenk T. The adenovirus type 5 E1A transcriptional control region contains a duplicated enhancer element. Cell. 1983 Jul;33(3):695–703. doi: 10.1016/0092-8674(83)90012-0. [DOI] [PubMed] [Google Scholar]
  40. Hen R., Borrelli E., Sassone-Corsi P., Chambon P. An enhancer element is located 340 base pairs upstream from the adenovirus-2 E1A capsite. Nucleic Acids Res. 1983 Dec 20;11(24):8747–8760. doi: 10.1093/nar/11.24.8747. [DOI] [PMC free article] [PubMed] [Google Scholar]
  41. Hu S. L., Manley J. L. DNA sequence required for initiation of transcription in vitro from the major late promoter of adenovirus 2. Proc Natl Acad Sci U S A. 1981 Feb;78(2):820–824. doi: 10.1073/pnas.78.2.820. [DOI] [PMC free article] [PubMed] [Google Scholar]
  42. Imperiale M. J., Feldman L. T., Nevins J. R. Activation of gene expression by adenovirus and herpesvirus regulatory genes acting in trans and by a cis-acting adenovirus enhancer element. Cell. 1983 Nov;35(1):127–136. doi: 10.1016/0092-8674(83)90215-5. [DOI] [PubMed] [Google Scholar]
  43. Jones N., Shenk T. An adenovirus type 5 early gene function regulates expression of other early viral genes. Proc Natl Acad Sci U S A. 1979 Aug;76(8):3665–3669. doi: 10.1073/pnas.76.8.3665. [DOI] [PMC free article] [PubMed] [Google Scholar]
  44. Jones N., Shenk T. Isolation of adenovirus type 5 host range deletion mutants defective for transformation of rat embryo cells. Cell. 1979 Jul;17(3):683–689. doi: 10.1016/0092-8674(79)90275-7. [DOI] [PubMed] [Google Scholar]
  45. Levinson B., Khoury G., Vande Woude G., Gruss P. Activation of SV40 genome by 72-base pair tandem repeats of Moloney sarcoma virus. Nature. 1982 Feb 18;295(5850):568–572. doi: 10.1038/295568a0. [DOI] [PubMed] [Google Scholar]
  46. Lusky M., Berg L., Weiher H., Botchan M. Bovine papilloma virus contains an activator of gene expression at the distal end of the early transcription unit. Mol Cell Biol. 1983 Jun;3(6):1108–1122. doi: 10.1128/mcb.3.6.1108. [DOI] [PMC free article] [PubMed] [Google Scholar]
  47. Manley J. L., Sharp P. A., Gefter M. L. RNA synthesis in isolated nuclei: in vitro initiation of adenovirus 2 major late mRNA precursor. Proc Natl Acad Sci U S A. 1979 Jan;76(1):160–164. doi: 10.1073/pnas.76.1.160. [DOI] [PMC free article] [PubMed] [Google Scholar]
  48. 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]
  49. McKnight S. L. Functional relationships between transcriptional control signals of the thymidine kinase gene of herpes simplex virus. Cell. 1982 Dec;31(2 Pt 1):355–365. doi: 10.1016/0092-8674(82)90129-5. [DOI] [PubMed] [Google Scholar]
  50. McKnight S. L., Kingsbury R. Transcriptional control signals of a eukaryotic protein-coding gene. Science. 1982 Jul 23;217(4557):316–324. doi: 10.1126/science.6283634. [DOI] [PubMed] [Google Scholar]
  51. Mellon P., Parker V., Gluzman Y., Maniatis T. Identification of DNA sequences required for transcription of the human alpha 1-globin gene in a new SV40 host-vector system. Cell. 1981 Dec;27(2 Pt 1):279–288. doi: 10.1016/0092-8674(81)90411-6. [DOI] [PubMed] [Google Scholar]
  52. Montell C., Fisher E. F., Caruthers M. H., Berk A. J. Resolving the functions of overlapping viral genes by site-specific mutagenesis at a mRNA splice site. Nature. 1982 Feb 4;295(5848):380–384. doi: 10.1038/295380a0. [DOI] [PubMed] [Google Scholar]
  53. Moreau P., Hen R., Wasylyk B., Everett R., Gaub M. P., Chambon P. The SV40 72 base repair repeat has a striking effect on gene expression both in SV40 and other chimeric recombinants. Nucleic Acids Res. 1981 Nov 25;9(22):6047–6068. doi: 10.1093/nar/9.22.6047. [DOI] [PMC free article] [PubMed] [Google Scholar]
  54. Muskavitch M. A., Hogness D. S. An expandable gene that encodes a Drosophila glue protein is not expressed in variants lacking remote upstream sequences. Cell. 1982 Jul;29(3):1041–1051. doi: 10.1016/0092-8674(82)90467-6. [DOI] [PubMed] [Google Scholar]
  55. Nevins J. R. Mechanism of activation of early viral transcription by the adenovirus E1A gene product. Cell. 1981 Oct;26(2 Pt 2):213–220. doi: 10.1016/0092-8674(81)90304-4. [DOI] [PubMed] [Google Scholar]
  56. Osborne T. F., Berk A. J. Far upstream initiation sites for adenovirus early region 1A transcription are utilized after the onset of viral DNA replication. J Virol. 1983 Feb;45(2):594–599. doi: 10.1128/jvi.45.2.594-599.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  57. Osborne T. F., Gaynor R. B., Berk A. J. The TATA homology and the mRNA 5' untranslated sequence are not required for expression of essential adenovirus E1A functions. Cell. 1982 May;29(1):139–148. doi: 10.1016/0092-8674(82)90098-8. [DOI] [PubMed] [Google Scholar]
  58. Osborne T. F., Schell R. E., Burch-Jaffe E., Berget S. J., Berk A. J. Mapping a eukaryotic promoter: a DNA sequence required for in vivo expression of adenovirus pre-early functions. Proc Natl Acad Sci U S A. 1981 Mar;78(3):1381–1385. doi: 10.1073/pnas.78.3.1381. [DOI] [PMC free article] [PubMed] [Google Scholar]
  59. Perricaudet M., Akusjärvi G., Virtanen A., Pettersson U. Structure of two spliced mRNAs from the transforming region of human subgroup C adenoviruses. Nature. 1979 Oct 25;281(5733):694–696. doi: 10.1038/281694a0. [DOI] [PubMed] [Google Scholar]
  60. Proudfoot N. J., Shander M. H., Manley J. L., Gefter M. L., Maniatis T. Structure and in vitro transcription of human globin genes. Science. 1980 Sep 19;209(4463):1329–1336. doi: 10.1126/science.6158093. [DOI] [PubMed] [Google Scholar]
  61. 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]
  62. Ricciardi R. P., Jones R. L., Cepko C. L., Sharp P. A., Roberts B. E. Expression of early adenovirus genes requires a viral encoded acidic polypeptide. Proc Natl Acad Sci U S A. 1981 Oct;78(10):6121–6125. doi: 10.1073/pnas.78.10.6121. [DOI] [PMC free article] [PubMed] [Google Scholar]
  63. Rosenberg M., Court D. Regulatory sequences involved in the promotion and termination of RNA transcription. Annu Rev Genet. 1979;13:319–353. doi: 10.1146/annurev.ge.13.120179.001535. [DOI] [PubMed] [Google Scholar]
  64. Sambrook J., Greene R., Stringer J., Mitchison T., Hu S. L., Botchan M. Analysis of the sites of integration of viral DNA sequences in rat cells transformed by adenovirus 2 or SV40. Cold Spring Harb Symp Quant Biol. 1980;44(Pt 1):569–584. doi: 10.1101/sqb.1980.044.01.059. [DOI] [PubMed] [Google Scholar]
  65. 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]
  66. Shaw A. R., Ziff E. B. Transcripts from the adenovirus-2 major late promoter yield a single early family of 3' coterminal mRNAs and five late families. Cell. 1980 Dec;22(3):905–916. doi: 10.1016/0092-8674(80)90568-1. [DOI] [PubMed] [Google Scholar]
  67. Shortle D., Nathans D. Local mutagenesis: a method for generating viral mutants with base substitutions in preselected regions of the viral genome. Proc Natl Acad Sci U S A. 1978 May;75(5):2170–2174. doi: 10.1073/pnas.75.5.2170. [DOI] [PMC free article] [PubMed] [Google Scholar]
  68. Siebenlist U., Simpson R. B., Gilbert W. E. coli RNA polymerase interacts homologously with two different promoters. Cell. 1980 Jun;20(2):269–281. doi: 10.1016/0092-8674(80)90613-3. [DOI] [PubMed] [Google Scholar]
  69. Spector D. J., McGrogan M., Raskas H. J. Regulation of the appearance of cytoplasmic RNAs from region 1 of the adenovirus 2 genome. J Mol Biol. 1978 Dec 15;126(3):395–414. doi: 10.1016/0022-2836(78)90048-7. [DOI] [PubMed] [Google Scholar]
  70. Stow N. D. Cloning of a DNA fragment from the left-hand terminus of the adenovirus type 2 genome and its use in site-directed mutagenesis. J Virol. 1981 Jan;37(1):171–180. doi: 10.1128/jvi.37.1.171-180.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  71. Struhl K. The yeast his3 promoter contains at least two distinct elements. Proc Natl Acad Sci U S A. 1982 Dec;79(23):7385–7389. doi: 10.1073/pnas.79.23.7385. [DOI] [PMC free article] [PubMed] [Google Scholar]
  72. Talkington C. A., Nishioka Y., Leder P. In vitro transcription of normal, mutant, and truncated mouse alpha-globin genes. Proc Natl Acad Sci U S A. 1980 Dec;77(12):7132–7136. doi: 10.1073/pnas.77.12.7132. [DOI] [PMC free article] [PubMed] [Google Scholar]
  73. Thomas G. P., Mathews M. B. DNA replication and the early to late transition in adenovirus infection. Cell. 1980 Nov;22(2 Pt 2):523–533. doi: 10.1016/0092-8674(80)90362-1. [DOI] [PubMed] [Google Scholar]
  74. Treisman R., Green M. R., Maniatis T. cis and trans activation of globin gene transcription in transient assays. Proc Natl Acad Sci U S A. 1983 Dec;80(24):7428–7432. doi: 10.1073/pnas.80.24.7428. [DOI] [PMC free article] [PubMed] [Google Scholar]
  75. Tyndall C., La Mantia G., Thacker C. M., Favaloro J., Kamen R. A region of the polyoma virus genome between the replication origin and late protein coding sequences is required in cis for both early gene expression and viral DNA replication. Nucleic Acids Res. 1981 Dec 11;9(23):6231–6250. doi: 10.1093/nar/9.23.6231. [DOI] [PMC free article] [PubMed] [Google Scholar]
  76. Van Ormondt H., Maat J., De Waard A., Van der Eb A. J. The nucleotide sequence of the transforming HpaI-E fragment of adenovirus type 5 DNA. Gene. 1978 Dec;4(4):309–328. doi: 10.1016/0378-1119(78)90048-3. [DOI] [PubMed] [Google Scholar]
  77. Virtanen A., Pettersson U. The molecular structure of the 9S mRNA from early region 1A of adenovirus serotype 2. J Mol Biol. 1983 Apr 15;165(3):496–499. doi: 10.1016/s0022-2836(83)80215-0. [DOI] [PubMed] [Google Scholar]
  78. Wasylyk B., Derbyshire R., Guy A., Molko D., Roget A., Téoule R., Chambon P. Specific in vitro transcription of conalbumin gene is drastically decreased by single-point mutation in T-A-T-A box homology sequence. Proc Natl Acad Sci U S A. 1980 Dec;77(12):7024–7028. doi: 10.1073/pnas.77.12.7024. [DOI] [PMC free article] [PubMed] [Google Scholar]
  79. Wasylyk B., Kédinger C., Corden J., Brison O., Chambon P. Specific in vitro initiation of transcription on conalbumin and ovalbumin genes and comparison with adenovirus-2 early and late genes. Nature. 1980 Jun 5;285(5764):367–373. doi: 10.1038/285367a0. [DOI] [PubMed] [Google Scholar]
  80. Weiher H., König M., Gruss P. Multiple point mutations affecting the simian virus 40 enhancer. Science. 1983 Feb 11;219(4585):626–631. doi: 10.1126/science.6297005. [DOI] [PubMed] [Google Scholar]
  81. de Villiers J., Schaffner W. A small segment of polyoma virus DNA enhances the expression of a cloned beta-globin gene over a distance of 1400 base pairs. Nucleic Acids Res. 1981 Dec 11;9(23):6251–6264. doi: 10.1093/nar/9.23.6251. [DOI] [PMC free article] [PubMed] [Google Scholar]

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