Experiment: 3ELX

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	0.1 M Sodium HEPES, 1.4 M tri-sodium citrate dihydrate, 1% ethylene glycol, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.33	47.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.422	α = 90
b = 54.422	β = 90
c = 82.696	γ = 120

Symmetry
Space Group	P 31 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 315	toroidal mirror	2007-12-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	0.97	ESRF	ID29

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.6	41	99.1	0.069	0.069	16.9	5.2	18986	18986			15.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.6	1.69	100		0.281	0.281	6.4	5.3	2731

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	2QO4	1.6	30	18978	18001	977	98.66	0.20433	0.20433	0.20246	0.2398	RANDOM	17.547

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]
0.36	0.18		0.36		-0.53

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.14
r_dihedral_angle_3_deg	14.941
r_dihedral_angle_4_deg	13.374
r_dihedral_angle_1_deg	5.381
r_scangle_it	3.253
r_scbond_it	2.088
r_mcangle_it	1.274
r_angle_refined_deg	1.155
r_mcbond_it	0.855
r_nbtor_refined	0.303

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.14
r_dihedral_angle_3_deg	14.941
r_dihedral_angle_4_deg	13.374
r_dihedral_angle_1_deg	5.381
r_scangle_it	3.253
r_scbond_it	2.088
r_mcangle_it	1.274
r_angle_refined_deg	1.155
r_mcbond_it	0.855
r_nbtor_refined	0.303
r_nbd_refined	0.187
r_symmetry_vdw_refined	0.177
r_symmetry_hbond_refined	0.143
r_xyhbond_nbd_refined	0.12
r_chiral_restr	0.076
r_bond_refined_d	0.008
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1030
Nucleic Acid Atoms
Solvent Atoms	133
Heterogen Atoms	4

Software

Software
Software Name	Purpose
ADSC	data collection
MOLREP	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	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.