4NR2

Crystal structure of STK4 (MST1) SARAH domain

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.5	277.15	2.3M sodium formate, 0.1M acetate pH 4.5, VAPOR DIFFUSION, SITTING DROP, temperature 277.15K

Crystal Properties
Matthews coefficient	Solvent content
2.57	52.19

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.26	α = 90
b = 63.75	β = 90
c = 144.74	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	PIXEL	PSI PILATUS 6M		2013-04-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I02	0.97949	Diamond	I02

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	2	63.75	98.4	0.064	11.7	4.4	34708	34702			34.7

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	2	2.11	98		0.768	2.2	4.5	4951

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	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	SIRAS	THROUGHOUT	2	55.27	2	34702	32937	1736	98.02	0.264	0.20866	0.2069	0.24033	RANDOM	49.839

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]
2.9			0.77		-3.66

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.188
r_dihedral_angle_4_deg	15.799
r_dihedral_angle_3_deg	14.092
r_long_range_B_refined	8.776
r_long_range_B_other	8.775
r_scangle_other	6.005
r_dihedral_angle_1_deg	4.84
r_scbond_it	3.826
r_scbond_other	3.825
r_mcangle_it	3.256
r_mcangle_other	3.255
r_mcbond_it	2.252
r_mcbond_other	2.251
r_angle_other_deg	1.596
r_angle_refined_deg	1.592
r_chiral_restr	0.088
r_bond_refined_d	0.016
r_bond_other_d	0.01
r_gen_planes_refined	0.01
r_gen_planes_other	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3358
Nucleic Acid Atoms
Solvent Atoms	223
Heterogen Atoms	40

Software

Software
Software Name	Purpose
GDA	data collection
SHARP	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling