Experiment: 5UBF

Crystal structure of the RctB domains 2-3, RctB-155-483

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	277	Crystals of selenomethionine-substituted RctB domains 2-3 (155-483) were prepared by mixing 0.1, or 0.2, or 0.4 uL of the protein solution (22.7 mg/ml RctB-155-483 in 20 mM Tris pH 7.4, 500 mM sodium chloride, 5% glycerol, 5 mM 2-mercaptoethanol) and 0.2 uL of reservoir solution (0.1 M Bis-Tris propane pH 6.5, 0.2 M Magnesium chloride, 2% w/v PEG 8000).

Crystal Properties
Matthews coefficient	Solvent content
2.6	52.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 128.535	α = 90
b = 128.535	β = 90
c = 127.775	γ = 120

Symmetry
Space Group	H 3

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	80	PIXEL	DECTRIS PILATUS 6M-F		2014-07-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-C	0.9792	APS	24-ID-C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	2.6	50	99.4	0.053	21.73	5.7		24150

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.6	2.64	99		0.828	0.506		5.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	SAD	FREE R-VALUE	2.6	41.966	0.32	23743	1744	98.02	0.2379	0.235	0.2405	0.2765	0.2813

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	12.623
f_angle_d	0.546
f_chiral_restr	0.043
f_plane_restr	0.003
f_bond_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4578
Nucleic Acid Atoms
Solvent Atoms	31
Heterogen Atoms

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
AutoSol	phasing
PHENIX	model building