3UV4

Crystal Structure of the second bromodomain of human Transcription initiation factor TFIID subunit 1 (TAF1)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	0.056M NaH2PO4 1.344M K2HPO4, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.79	55.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.45	α = 90
b = 57.8	β = 90
c = 123.57	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV		2009-06-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E SUPERBRIGHT	1.52

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.89	28.96	99.2	0.074	0.074	14.4	4.7	33686	33417			28.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.89	1.99	97.8		0.763	0.763	1	4.7	4734

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	Ensemble of PDB entries 3HMH, 2GRC, 2OO1, 2OSS, 2OUO, 3DAI, 3D7C, 3DWY, 3G0L, 3GG3	1.89	28.96	33666	33238		98.73	0.1924	0.1924	0.1906		RANDOM	28.982

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
0.68			0.12		-0.8

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	44.662
r_dihedral_angle_4_deg	21.594
r_dihedral_angle_3_deg	12.505
r_scangle_it	8.363
r_scbond_it	6.803
r_dihedral_angle_1_deg	4.889
r_mcangle_it	4.413
r_mcbond_it	3.157
r_angle_refined_deg	1.356
r_mcbond_other	1.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	44.662
r_dihedral_angle_4_deg	21.594
r_dihedral_angle_3_deg	12.505
r_scangle_it	8.363
r_scbond_it	6.803
r_dihedral_angle_1_deg	4.889
r_mcangle_it	4.413
r_mcbond_it	3.157
r_angle_refined_deg	1.356
r_mcbond_other	1.09
r_angle_other_deg	0.955
r_chiral_restr	0.09
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2008
Nucleic Acid Atoms
Solvent Atoms	305
Heterogen Atoms	23

Software

Software
Software Name	Purpose
SCALA	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
MOSFLM	data reduction

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.