3IF8

Crystal Structure of ZWILCH, a member of the RZZ kinetochore complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.25	293	10-20% (w/v) PEG3350, 100mM BisTris Propane, 200mM Na thiocyanate, pH6.25, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.67	53.89

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.6	α = 90
b = 86.6	β = 90
c = 166.89	γ = 120

Symmetry
Space Group	P 32 2 1

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 315r		2008-09-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	0.9795	ESRF	ID14-4

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	2.55	44.68	99.4	0.042	12.95	3.59	24132	24132		-3	56.478

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)
	2.55	2.62	99.3		0.325	2.3	3.63	1734

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	SAD	THROUGHOUT	2.55	44.68	24132	24132	1228	99.44	0.231	0.231	0.229	0.274	RANDOM	48.753

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]
0.87	0.44		0.87		-1.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.848
r_dihedral_angle_3_deg	20.515
r_dihedral_angle_4_deg	18.382
r_dihedral_angle_1_deg	5.871
r_scangle_it	2.213
r_angle_refined_deg	1.358
r_scbond_it	1.349
r_mcangle_it	1.301
r_mcbond_it	0.731
r_nbtor_refined	0.311
r_symmetry_vdw_refined	0.246
r_nbd_refined	0.225
r_xyhbond_nbd_refined	0.171
r_symmetry_hbond_refined	0.113
r_chiral_restr	0.09
r_bond_refined_d	0.01
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3969
Nucleic Acid Atoms
Solvent Atoms	37
Heterogen Atoms

Software

Software
Software Name	Purpose
XSCALE	data scaling
SHARP	phasing
SOLOMON	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data scaling