Experiment: 6O2K

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		298.15	Purified native D. Melanogaster CENPC 1244 to 1411 protein was mixed with 0.2 M NaCl, 0.1 M MES (pH 6.0), 15 % v/v Pentaerythritol propoxylate (5/4 PO/OH) in a 1:1 ratio (v/v). SeMet substituted crystals were grown in the same condition by providing native crystals as microseeds
2	VAPOR DIFFUSION, HANGING DROP		298.15	D. melanogaster CENP-C 1190-1411 crystals were grown by mixing purified proteins 0.1 M MOPS (pH 7.0) and 12% (w/v) PEG 4000 in a 1:1 ratio (v/v)

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.93	α = 90
b = 61.72	β = 90
c = 87.92	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	105	CCD	MARMOSAIC 300 mm CCD		2018-08-16	M	SINGLE WAVELENGTH
2	2	x-ray	105	CCD	MARMOSAIC 300 mm CCD		2017-08-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-G	0.9786	APS	21-ID-G
2	SYNCHROTRON	APS BEAMLINE 21-ID-G	0.9786	APS	21-ID-G

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Rpim I (All)	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
2	1.81	30.86	99.6	0.02	21.6	4.8		26385

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
2	1.81	1.86			0.257

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	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	1.81	30.86	25138	1914	95.08	0.1983	0.1955	0.2317

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	10.359
f_angle_d	0.902
f_chiral_restr	0.07
f_bond_d	0.007
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2186
Nucleic Acid Atoms
Solvent Atoms	128
Heterogen Atoms

Software

Software
Software Name	Purpose
Aimless	data scaling
MOSFLM	data reduction
XDS	data reduction
AutoSol	phasing
Coot	model building
PHENIX	refinement

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.