MCB
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Gangloff, Y.-G.
Right arrow Articles by Davidson, I.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Gangloff, Y.-G.
Right arrow Articles by Davidson, I.

 Previous Article  |  Next Article 

Molecular and Cellular Biology, March 2001, p. 1841-1853, Vol. 21, No. 5
0270-7306/01/$04.00+0   DOI: 10.1128/MCB.21.5.1841-1853.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Histone Folds Mediate Selective Heterodimerization of Yeast TAFII25 with TFIID Components yTAFII47 and yTAFII65 and with SAGA Component ySPT7

Yann-Gaël Gangloff,1 Steven L. Sanders,2 Christophe Romier,1 Doris Kirschner,1 P. Anthony Weil,2 Laszlo Tora,1 and Irwin Davidson1,*

Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, Illkirch Cédex, C.U. de Strasbourg, France,1 and Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee 372322

Received 25 August 2000/Returned for modification 30 September 2000/Accepted 7 December 2000

We show that the yeast TFIID (yTFIID) component yTAFII47 contains a histone fold domain (HFD) with homology to that previously described for hTAFII135. Complementation in vivo indicates that the yTAFII47 HFD is necessary and sufficient for vegetative growth. Mutation of highly conserved residues in the alpha 1 helix of the yTAFII47 HFD results in a temperature-sensitive phenotype which can be suppressed by overexpression of yTAFII25, as well as by yTAFII40, yTAFII19, and yTAFII60. In yeast two-hybrid and bacterial coexpression assays, the yTAFII47 HFD selectively heterodimerizes with yTAFII25, which we show contains an HFD with homology to the hTAFII28 family We additionally demonstrate that yTAFII65 contains a functional HFD which also selectively heterodimerizes with yTAFII25. These results reveal the existence of two novel histone-like pairs in yTFIID. The physical and genetic interactions described here show that the histone-like yTAFIIs are organized in at least two substructures within TFIID rather than in a single octamer-like structure as previously suggested. Furthermore, our results indicate that ySPT7 has an HFD homologous to that of yTAFII47 which selectively heterodimerizes with yTAFII25, defining a novel histone-like pair in the SAGA complex.


* Corresponding author. Mailing address: Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP, B.P. 163, 67404 Illkirch Cédex, C.U. de Strasbourg, France. Phone: 33 3 88 65 34 40 (45). Fax: 33 3 88 65 32 01. E-mail: irwin{at}titus.u-strasbg.fr.


Molecular and Cellular Biology, March 2001, p. 1841-1853, Vol. 21, No. 5
0270-7306/01/$04.00+0   DOI: 10.1128/MCB.21.5.1841-1853.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.



This article has been cited by other articles:




Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. J. Virol. Eukaryot. Cell
Microbiol. Mol. Biol. Rev. Clin. Vaccine Immunol. All ASM Journals

Copyright © 2001 by the American Society for Microbiology. All rights reserved.