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2j04

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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2j04 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j04 OCA], [http://www.ebi.ac.uk/pdbsum/2j04 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2j04 RCSB]</span>
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[[Category: yeast rna polymerase iii]]
[[Category: yeast rna polymerase iii]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:51:11 2008''

Revision as of 00:51, 31 March 2008


PDB ID 2j04

Drag the structure with the mouse to rotate
, resolution 3.20Å
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



THE TAU60-TAU91 SUBCOMPLEX OF YEAST TRANSCRIPTION FACTOR IIIC


Overview

Yeast RNA polymerase III is recruited upon binding of subcomplexes tauA and tauB of transcription factor IIIC (TFIIIC) to the A and B blocks of tRNA gene promoters. The tauB subcomplex consists of subunits tau60, tau91, and tau138. We determined the 3.2 A crystal structure of tau60 bound to a large C-terminal fragment of tau91 (Deltatau91). Deltatau91 protein contains a seven-bladed propeller preceded by an N-terminal extension, whereas tau60 contains a structurally homologous propeller followed by a C-terminal domain with a novel alpha/beta fold. The two propeller domains do not have any detectable DNA binding activity and mediate heterodimer formation that may serve as scaffold for tau138 assembly. We show that the C-terminal tau60 domain interacts with the TATA binding protein (TBP). Recombinant tauB recruits TBP and stimulates TFIIIB-directed transcription on a TATA box containing tRNA gene, implying a combined contribution of tauA and tauB to preinitiation complex formation.

About this Structure

2J04 is a Protein complex structure of sequences from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

Structure of the tau60/Delta tau91 subcomplex of yeast transcription factor IIIC: insights into preinitiation complex assembly., Mylona A, Fernandez-Tornero C, Legrand P, Haupt M, Sentenac A, Acker J, Muller CW, Mol Cell. 2006 Oct 20;24(2):221-32. PMID:17052456

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