2P6V

Structure of TAFH domain of the human TAF4 subunit of TFIID

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.6	295	Crystals of methylated hTAF4-TAFH containing SeMet were grown by hanging drop vapor diffusion at 22 C by mixing equal volumes of protein solution and crystallization buffer (200 mM ammonium acetate, 2.2 M ammonium sulfate and 150 mM sodium bromide). , pH 6.6, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
4.21	70.77

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.852	α = 90
b = 74.852	β = 90
c = 131.785	γ = 120

Symmetry
Space Group	P 63 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 210		2004-03-16	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	0.9797, 1.0199	ALS	8.3.1

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	2	65.94	98.49	0.095	0.107	16.7	13.9	15659	15423			42.8

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)
	2	2.11	98.3		0.105	0.11	3.7	10.1	2184

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	2	65.94	15659	15423	786	98.49	0.214	0.21567	0.21402	0.24835	RANDOM	53.387

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]
2.71	1.36		2.71		-4.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.872
r_dihedral_angle_4_deg	18.37
r_scangle_it	17.267
r_scbond_it	16.183
r_dihedral_angle_3_deg	14.69
r_mcbond_it	13.17
r_mcangle_it	12.661
r_mcbond_other	7.564
r_dihedral_angle_1_deg	5.569
r_angle_refined_deg	2.343
r_angle_other_deg	1.167
r_symmetry_hbond_refined	0.433
r_nbd_refined	0.242
r_nbd_other	0.22
r_xyhbond_nbd_refined	0.216
r_nbtor_refined	0.213
r_symmetry_vdw_other	0.199
r_nbtor_other	0.168
r_symmetry_vdw_refined	0.154
r_chiral_restr	0.119
r_bond_refined_d	0.017
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	776
Nucleic Acid Atoms
Solvent Atoms	39
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
MOSFLM	data reduction
CCP4	data scaling
MLPHARE	phasing