3LHR

Crystal structure of the SCAN domain from Human ZNF24

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	291	Protein solution at 1.5 mM concentration was mixed 1:1 with a reservoir solution composed of 100 mM HEPES buffer, pH 7.5, 40 mM MgCl2, 24% MEPEG 2000, 2 mM thimerosal. Crystals were cryoprotected with reservoir solution supplemented with 10% PEG 400, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.24	45.21

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.055	α = 90
b = 50.029	β = 90
c = 91.301	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	CCD	MARMOSAIC 300 mm CCD	Silicon <111> monochromator, KB mirrors	2006-08-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D		APS	23-ID-D

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	1.9	50	97.3	0.082	12.3	13.3		15875

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.9	1.97	76.5		0.456		6.4	1216

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	1.9	33.73	15873	793	98.65	0.184	0.182	0.243	RANDOM	29.163

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]
0.04			-0.16		0.11

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.416
r_dihedral_angle_4_deg	18.052
r_dihedral_angle_3_deg	13.72
r_scangle_it	6.308
r_dihedral_angle_1_deg	5.147
r_scbond_it	3.902
r_mcangle_it	2.461
r_angle_refined_deg	1.861
r_mcbond_it	1.401
r_chiral_restr	0.133
r_bond_refined_d	0.024
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1537
Nucleic Acid Atoms
Solvent Atoms	112
Heterogen Atoms	15

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHARP	phasing
DM	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection