Experiment: 4G3X

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.8	291	Protein solution: 10 - 18 mg/mL, 50 mM HEPES, pH 7.2, 50 mM NaCl, 10mM MgCl2 5% Glycerol, 1mM DTE, 10 M ZnCl2 Reservoir solution:200mM calcium acetate, 100mM sodium cacodylate pH 6.5, 18% PEG 8000. Drop: 3uL protein, 3uL reservoir , VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
4.06	69.71

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.4	α = 90
b = 91.4	β = 90
c = 93.11	γ = 120

Symmetry
Space Group	P 3 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	MARMOSAIC 300 mm CCD	crystal	2011-07-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.0	APS	22-ID

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	3.25	32.6		0.18		4.6	6462	6462	3	3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	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	PDB 3K8Y for Chain A and PDB 1GUA for Chain B	3.25	32.6	6339	668	85.6	0.2754	0.2505	0.271

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]
0.0605			0.0605		-0.1211

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	12.773
f_angle_d	0.597
f_chiral_restr	0.041
f_bond_d	0.009
f_plane_restr	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1860
Nucleic Acid Atoms
Solvent Atoms	17
Heterogen Atoms	33

Software

Software
Software Name	Purpose
MAR345	data collection
SERGUI	data collection
PHENIX	model building
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing

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.