1TAF

DROSOPHILA TBP ASSOCIATED FACTORS DTAFII42/DTAFII62 HETEROTETRAMER

PDB DOI: https://doi.org/10.2210/pdb1TAF/pdb

Classification: COMPLEX (TWO TRANSCRIPTION FACTORS)
Organism(s): Drosophila melanogaster
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 1996-06-01 Released: 1996-12-07
Deposition Author(s): Xie, X., Kokubo, T., Cohen, S.L., Mirza, U.A., Hoffmann, A., Chait, B.T., Roeder, R.G., Nakatani, Y., Burley, S.K.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free:
0.244 (Depositor)
R-Value Work:
0.198 (Depositor)
R-Value Observed:
0.198 (Depositor)

wwPDB Validation 3D Report Full Report

This is version 1.5 of the entry. See complete history.

Literature

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

Xie, X., Kokubo, T., Cohen, S.L., Mirza, U.A., Hoffmann, A., Chait, B.T., Roeder, R.G., Nakatani, Y., Burley, S.K.

(1996) Nature 380: 316-322

PubMed: 8598927 Search on PubMed
DOI: https://doi.org/10.1038/380316a0
Primary Citation of Related Structures:
1TAF

PubMed Abstract:
A complex of two TFIID TATA box-binding protein-associated factors (TA FIIs) is described at 2.0A resolution. The amino-terminal portions of dTAFII42 and dTAFII62 from Drosophila adopt the canonical histone fold, consisting of two short alpha-helices flanking a long central alpha-helix. Like histones H3 and H4, dTAFII42 and dTAFII62 form an intimate heterodimer by extensive hydrophobic contacts between the paired molecules. In solution and in the crystalline state, the dTAFII42/dTAFII62 complex exists as a heterotetramer, resembling the (H3/H4)2 heterotetrameric core of the histone octamer, suggesting that TFIID contains a histone octamer-like substructure.

Organizational Affiliation

Laboratory of Molecular Biophysics, The Rockefeller University, New York, 10021, USA.

Macromolecule Content

Total Structure Weight: 16 kDa
Atom Count: 1,218
Modelled Residue Count: 138
Deposited Residue Count: 138
Unique protein chains: 2

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TFIID TBP ASSOCIATED FACTOR 42	A	68	Drosophila melanogaster	Mutation(s): 1
UniProt
Find proteins for Q27272 (Drosophila melanogaster) Explore Q27272 Go to UniProtKB: Q27272
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	Q27272
Sequence Annotations Expand
Reference Sequence LOADING

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
TFIID TBP ASSOCIATED FACTOR 62	B	70	Drosophila melanogaster	Mutation(s): 0
UniProt
Find proteins for P49847 (Drosophila melanogaster) Explore P49847 Go to UniProtKB: P49847
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P49847
Sequence Annotations Expand
Reference Sequence LOADING

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ZN Query on ZN Download Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain E [auth A] SDF format, chain G [auth B] SDF format, chain I [auth B] SDF format, chain D [auth A] SDF format, chain F [auth A] SDF format, chain H [auth B] MOL2 format, chain C [auth A] MOL2 format, chain E [auth A] MOL2 format, chain G [auth B] MOL2 format, chain I [auth B] MOL2 format, chain D [auth A] MOL2 format, chain F [auth A] MOL2 format, chain H [auth B] mmCIF format, chain C [auth A] mmCIF format, chain E [auth A] mmCIF format, chain G [auth B] mmCIF format, chain I [auth B] mmCIF format, chain D [auth A] mmCIF format, chain F [auth A] mmCIF format, chain H [auth B]	C [auth A] D [auth A] E [auth A] F [auth A] G [auth B] C [auth A], D [auth A], E [auth A], F [auth A], G [auth B], H [auth B], I [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth B] Focus chain H [auth B] Focus chain I [auth B]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Free: 0.244 (Depositor)
R-Value Work: 0.198 (Depositor)
R-Value Observed: 0.198 (Depositor)

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 59.8	α = 90
b = 59.8	β = 90
c = 111	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

View Full Validation Report

Entry History

Deposition Data

Released Date: 1996-12-07

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 1996-12-07
Type: Initial release
Version 1.1: 2008-03-24
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Derived calculations, Version format compliance
Version 1.3: 2021-02-03
Changes: Database references, Derived calculations, Other, Structure summary
Version 1.4: 2021-11-03
Changes: Database references
Version 1.5: 2024-02-14
Changes: Data collection