Experiment: 3KXA

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	294	0.1M Tris HCl, 22% PEG 400, 0.3M tri-sodium citrate, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 294K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 124.823	α = 90
b = 124.823	β = 90
c = 137.577	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	100	CCD	MARMOSAIC 225 mm CCD		2006-04-10	M	MAD
2	2	x-ray	100	CCD	MARMOSAIC 225 mm CCD		2006-02-18	M	MAD
1,2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.97800	ESRF	BM14
2	SYNCHROTRON	ESRF BEAMLINE BM14	0.90499	ESRF	BM14

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	2.8	30	99.7	0.238	10.3	10.7		19515		-1	48.9

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	2.8	2.9	97.3		0.923	2.2	8.5	1929

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	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.8	26.31	18502	1004	99.39	0.23236	0.2298	0.27968	RANDOM	42.253

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]
2.61	1.3		2.61		-3.91

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.8
r_dihedral_angle_4_deg	20.632
r_dihedral_angle_3_deg	19.547
r_scangle_it	14.634
r_scbond_it	9.405
r_mcangle_it	7.55
r_dihedral_angle_1_deg	5.842
r_mcbond_it	4.749
r_angle_refined_deg	1.174
r_chiral_restr	0.071

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.8
r_dihedral_angle_4_deg	20.632
r_dihedral_angle_3_deg	19.547
r_scangle_it	14.634
r_scbond_it	9.405
r_mcangle_it	7.55
r_dihedral_angle_1_deg	5.842
r_mcbond_it	4.749
r_angle_refined_deg	1.174
r_chiral_restr	0.071
r_bond_refined_d	0.009
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4062
Nucleic Acid Atoms
Solvent Atoms	27
Heterogen Atoms	71

Software

Software
Software Name	Purpose
SOLVE	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.