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. 1995 Mar;15(3):1203–1209. doi: 10.1128/mcb.15.3.1203

ADA3, a putative transcriptional adaptor, consists of two separable domains and interacts with ADA2 and GCN5 in a trimeric complex.

J Horiuchi 1, N Silverman 1, G A Marcus 1, L Guarente 1
PMCID: PMC230343  PMID: 7862114

Abstract

Mutations in yeast ADA2, ADA3, and GCN5 weaken the activation potential of a subset of acidic activation domains. In this report, we show that their gene products form a heterotrimeric complex in vitro, with ADA2 as the linchpin holding ADA3 and GCN5 together. Further, activation by LexA-ADA3 fusions in vivo are regulated by the levels of ADA2. Combined with a prior observation that LexA-ADA2 fusions are regulated by the levels of ADA3 (N. Silverman, J. Agapite, and L. Guarente, Proc. Natl. Acad. Sci. USA 91:11665-11668, 1994), this finding suggests that these proteins also form a complex in cells. ADA3 can be separated into two nonoverlapping domains, an amino-terminal domain and a carboxyl-terminal domain, which do not separately complement the slow-growth phenotype or transcriptional defect of a delta ada3 strain but together supply full complementation. The carboxyl-terminal domain of ADA3 alone suffices for heterotrimeric complex formation in vitro and activation of LexA-ADA2 in vivo. We present a model depicting the ADA complex as a coactivator in which the ADA3 amino-terminal domain mediates an interaction between activation domains and the ADA complex.

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Selected References

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  1. Alani E., Cao L., Kleckner N. A method for gene disruption that allows repeated use of URA3 selection in the construction of multiply disrupted yeast strains. Genetics. 1987 Aug;116(4):541–545. doi: 10.1534/genetics.112.541.test. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Berger S. L., Cress W. D., Cress A., Triezenberg S. J., Guarente L. Selective inhibition of activated but not basal transcription by the acidic activation domain of VP16: evidence for transcriptional adaptors. Cell. 1990 Jun 29;61(7):1199–1208. doi: 10.1016/0092-8674(90)90684-7. [DOI] [PubMed] [Google Scholar]
  3. Berger S. L., Piña B., Silverman N., Marcus G. A., Agapite J., Regier J. L., Triezenberg S. J., Guarente L. Genetic isolation of ADA2: a potential transcriptional adaptor required for function of certain acidic activation domains. Cell. 1992 Jul 24;70(2):251–265. doi: 10.1016/0092-8674(92)90100-q. [DOI] [PubMed] [Google Scholar]
  4. Cairns B. R., Kim Y. J., Sayre M. H., Laurent B. C., Kornberg R. D. A multisubunit complex containing the SWI1/ADR6, SWI2/SNF2, SWI3, SNF5, and SNF6 gene products isolated from yeast. Proc Natl Acad Sci U S A. 1994 Mar 1;91(5):1950–1954. doi: 10.1073/pnas.91.5.1950. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Carlson M., Laurent B. C. The SNF/SWI family of global transcriptional activators. Curr Opin Cell Biol. 1994 Jun;6(3):396–402. doi: 10.1016/0955-0674(94)90032-9. [DOI] [PubMed] [Google Scholar]
  6. Chrivia J. C., Kwok R. P., Lamb N., Hagiwara M., Montminy M. R., Goodman R. H. Phosphorylated CREB binds specifically to the nuclear protein CBP. Nature. 1993 Oct 28;365(6449):855–859. doi: 10.1038/365855a0. [DOI] [PubMed] [Google Scholar]
  7. Côté J., Quinn J., Workman J. L., Peterson C. L. Stimulation of GAL4 derivative binding to nucleosomal DNA by the yeast SWI/SNF complex. Science. 1994 Jul 1;265(5168):53–60. doi: 10.1126/science.8016655. [DOI] [PubMed] [Google Scholar]
  8. Dalton S., Treisman R. Characterization of SAP-1, a protein recruited by serum response factor to the c-fos serum response element. Cell. 1992 Feb 7;68(3):597–612. doi: 10.1016/0092-8674(92)90194-h. [DOI] [PubMed] [Google Scholar]
  9. Dynlacht B. D., Hoey T., Tjian R. Isolation of coactivators associated with the TATA-binding protein that mediate transcriptional activation. Cell. 1991 Aug 9;66(3):563–576. doi: 10.1016/0092-8674(81)90019-2. [DOI] [PubMed] [Google Scholar]
  10. Eisenmann D. M., Arndt K. M., Ricupero S. L., Rooney J. W., Winston F. SPT3 interacts with TFIID to allow normal transcription in Saccharomyces cerevisiae. Genes Dev. 1992 Jul;6(7):1319–1331. doi: 10.1101/gad.6.7.1319. [DOI] [PubMed] [Google Scholar]
  11. Georgakopoulos T., Thireos G. Two distinct yeast transcriptional activators require the function of the GCN5 protein to promote normal levels of transcription. EMBO J. 1992 Nov;11(11):4145–4152. doi: 10.1002/j.1460-2075.1992.tb05507.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Gill G., Pascal E., Tseng Z. H., Tjian R. A glutamine-rich hydrophobic patch in transcription factor Sp1 contacts the dTAFII110 component of the Drosophila TFIID complex and mediates transcriptional activation. Proc Natl Acad Sci U S A. 1994 Jan 4;91(1):192–196. doi: 10.1073/pnas.91.1.192. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Goodrich J. A., Hoey T., Thut C. J., Admon A., Tjian R. Drosophila TAFII40 interacts with both a VP16 activation domain and the basal transcription factor TFIIB. Cell. 1993 Nov 5;75(3):519–530. doi: 10.1016/0092-8674(93)90386-5. [DOI] [PubMed] [Google Scholar]
  14. Guan K. L., Dixon J. E. Eukaryotic proteins expressed in Escherichia coli: an improved thrombin cleavage and purification procedure of fusion proteins with glutathione S-transferase. Anal Biochem. 1991 Feb 1;192(2):262–267. doi: 10.1016/0003-2697(91)90534-z. [DOI] [PubMed] [Google Scholar]
  15. Guarente L. Synthetic enhancement in gene interaction: a genetic tool come of age. Trends Genet. 1993 Oct;9(10):362–366. doi: 10.1016/0168-9525(93)90042-g. [DOI] [PubMed] [Google Scholar]
  16. Haynes S. R., Dollard C., Winston F., Beck S., Trowsdale J., Dawid I. B. The bromodomain: a conserved sequence found in human, Drosophila and yeast proteins. Nucleic Acids Res. 1992 May 25;20(10):2603–2603. doi: 10.1093/nar/20.10.2603. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Hinnebusch A. G., Lucchini G., Fink G. R. A synthetic HIS4 regulatory element confers general amino acid control on the cytochrome c gene (CYC1) of yeast. Proc Natl Acad Sci U S A. 1985 Jan;82(2):498–502. doi: 10.1073/pnas.82.2.498. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Hirschhorn J. N., Brown S. A., Clark C. D., Winston F. Evidence that SNF2/SWI2 and SNF5 activate transcription in yeast by altering chromatin structure. Genes Dev. 1992 Dec;6(12A):2288–2298. doi: 10.1101/gad.6.12a.2288. [DOI] [PubMed] [Google Scholar]
  19. Ireton K., Rudner D. Z., Siranosian K. J., Grossman A. D. Integration of multiple developmental signals in Bacillus subtilis through the Spo0A transcription factor. Genes Dev. 1993 Feb;7(2):283–294. doi: 10.1101/gad.7.2.283. [DOI] [PubMed] [Google Scholar]
  20. Koleske A. J., Young R. A. An RNA polymerase II holoenzyme responsive to activators. Nature. 1994 Mar 31;368(6470):466–469. doi: 10.1038/368466a0. [DOI] [PubMed] [Google Scholar]
  21. Marcus G. A., Silverman N., Berger S. L., Horiuchi J., Guarente L. Functional similarity and physical association between GCN5 and ADA2: putative transcriptional adaptors. EMBO J. 1994 Oct 17;13(20):4807–4815. doi: 10.1002/j.1460-2075.1994.tb06806.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Peterson C. L., Dingwall A., Scott M. P. Five SWI/SNF gene products are components of a large multisubunit complex required for transcriptional enhancement. Proc Natl Acad Sci U S A. 1994 Apr 12;91(8):2905–2908. doi: 10.1073/pnas.91.8.2905. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Piña B., Berger S., Marcus G. A., Silverman N., Agapite J., Guarente L. ADA3: a gene, identified by resistance to GAL4-VP16, with properties similar to and different from those of ADA2. Mol Cell Biol. 1993 Oct;13(10):5981–5989. doi: 10.1128/mcb.13.10.5981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Poon D., Weil P. A. Immunopurification of yeast TATA-binding protein and associated factors. Presence of transcription factor IIIB transcriptional activity. J Biol Chem. 1993 Jul 25;268(21):15325–15328. [PubMed] [Google Scholar]
  25. Rose M., Botstein D. Structure and function of the yeast URA3 gene. Differentially regulated expression of hybrid beta-galactosidase from overlapping coding sequences in yeast. J Mol Biol. 1983 Nov 15;170(4):883–904. doi: 10.1016/s0022-2836(83)80193-4. [DOI] [PubMed] [Google Scholar]
  26. Sikorski R. S., Hieter P. A system of shuttle vectors and yeast host strains designed for efficient manipulation of DNA in Saccharomyces cerevisiae. Genetics. 1989 May;122(1):19–27. doi: 10.1093/genetics/122.1.19. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Silverman N., Agapite J., Guarente L. Yeast ADA2 protein binds to the VP16 protein activation domain and activates transcription. Proc Natl Acad Sci U S A. 1994 Nov 22;91(24):11665–11668. doi: 10.1073/pnas.91.24.11665. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Studier F. W., Rosenberg A. H., Dunn J. J., Dubendorff J. W. Use of T7 RNA polymerase to direct expression of cloned genes. Methods Enzymol. 1990;185:60–89. doi: 10.1016/0076-6879(90)85008-c. [DOI] [PubMed] [Google Scholar]
  29. Swanson M. S., Winston F. SPT4, SPT5 and SPT6 interactions: effects on transcription and viability in Saccharomyces cerevisiae. Genetics. 1992 Oct;132(2):325–336. doi: 10.1093/genetics/132.2.325. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Tamkun J. W., Deuring R., Scott M. P., Kissinger M., Pattatucci A. M., Kaufman T. C., Kennison J. A. brahma: a regulator of Drosophila homeotic genes structurally related to the yeast transcriptional activator SNF2/SWI2. Cell. 1992 Feb 7;68(3):561–572. doi: 10.1016/0092-8674(92)90191-e. [DOI] [PubMed] [Google Scholar]
  31. Thompson C. M., Koleske A. J., Chao D. M., Young R. A. A multisubunit complex associated with the RNA polymerase II CTD and TATA-binding protein in yeast. Cell. 1993 Jul 2;73(7):1361–1375. doi: 10.1016/0092-8674(93)90362-t. [DOI] [PubMed] [Google Scholar]
  32. Verrijzer C. P., Yokomori K., Chen J. L., Tjian R. Drosophila TAFII150: similarity to yeast gene TSM-1 and specific binding to core promoter DNA. Science. 1994 May 13;264(5161):933–941. doi: 10.1126/science.8178153. [DOI] [PubMed] [Google Scholar]

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