3FGH

Human mitochondrial transcription factor A box B

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	291	0.1 M NaAcetate, 0.1 M CdCl2 and 21% PEG 4000, pH 5, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.48	50.42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 30.28	α = 90
b = 99.35	β = 90
c = 51.91	γ = 90

Symmetry
Space Group	C 2 2 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	CCD	NOIR-1		2007-05-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 4.2.2	0.98	ALS	4.2.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.35	28.96	99.2	0.049		6.83		17556			20.38

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.35	28	15765	1771	99.23	0.19077	0.18815	0.21403	RANDOM	21.394

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]
0.22			-0.28		0.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.921
r_dihedral_angle_3_deg	16.14
r_dihedral_angle_4_deg	12.91
r_sphericity_free	9.088
r_dihedral_angle_1_deg	7.095
r_sphericity_bonded	7.022
r_scangle_it	4.861
r_mcangle_it	3.949
r_scbond_it	3.331
r_rigid_bond_restr	3.294
r_mcbond_it	3.285
r_angle_refined_deg	1.3
r_nbtor_refined	0.3
r_symmetry_vdw_refined	0.293
r_nbd_refined	0.273
r_symmetry_hbond_refined	0.271
r_xyhbond_nbd_refined	0.19
r_metal_ion_refined	0.128
r_chiral_restr	0.083
r_bond_refined_d	0.012
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	615
Nucleic Acid Atoms
Solvent Atoms	54
Heterogen Atoms	6

Software

Software
Software Name	Purpose
d*TREK	data scaling
SOLVE	phasing
REFMAC	refinement
d*TREK	data reduction