Structural similarity between TAFs and the heterotetrameric core of the histone octamer

Xiaoling Xie, Tetsuro Kokubo, Steven L. Cohen, Urooj A. Mirza, Alexander Hoffmann, Brian T. Chait, Robert G. Roeder, Yoshihiro Nakatani, Stephen K. Burley

Research output: Contribution to journalReview articlepeer-review

228 Scopus citations

Abstract

A complex of two TFIID TATA box-binding protein-associated factors (TAF(II)s) is described at 2.0 Å resolution. The amino-terminal portions of dTAF(II)42 and dTAF(II)62 from Drosophila adopt the canonical histone fold, consisting of two short α-helices flanking a long central α-helix. Like histones H3 and H4, dTAF(II)42 and dTAF(II)62 form an intimate heterodimer by extensive hydrophobic contacts between the paired molecules. In solution and in the crystalline state, the dTAF(II)42/dTAF(II)62 complex exists as a heterotetramer, resembling the (H3/H4), heterotetrameric core of the histone octamer, suggesting that TFIID contains a histone octamer-like substructure.

Original languageEnglish (US)
Pages (from-to)316-322
Number of pages7
JournalNature
Volume380
Issue number6572
DOIs
StatePublished - Mar 28 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General

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