6NX8

ECAII(D90T,K162T) MUTANT IN COMPLEX WITH CITRATE AT PH 6.2


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP293Protein, at the concentration 15 mg/ml in 50 mM HEPES buffer pH 7 and 150 mM sodium chloride was mixed with equivolume solution of precipitant that contained, 17% (w/v) PEG3350, 0.17 M ammonium citrate pH 6.2, and 20 mM L-Asn. Resulting droplets were equilibrated against the precipitant. For the data collection, crystal was mounted in a quartz capillary
Crystal Properties
Matthews coefficientSolvent content
2.957.64

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 126.28α = 90
b = 126.28β = 90
c = 89.686γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298PIXELDECTRIS EIGER R 4MMultilayer X-ray mirrors VariMax HF2018-05-11MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU MICROMAX-007 HF1.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.854099.90.0710.080.03612.24.770498
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.851.8899.70.750.8640.420.6723.9

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONFOURIER SYNTHESISTHROUGHOUT1.854066360204796.950.130.12920.1555RANDOM25.678
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]
-0.07-0.03-0.070.22
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg42.697
r_dihedral_angle_3_deg13.882
r_dihedral_angle_4_deg13.506
r_dihedral_angle_1_deg6.008
r_angle_refined_deg1.938
r_angle_other_deg1.072
r_chiral_restr0.128
r_bond_refined_d0.019
r_gen_planes_refined0.01
r_bond_other_d0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4672
Nucleic Acid Atoms
Solvent Atoms424
Heterogen Atoms17

Software

Software
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
REFMACrefinement
PDB_EXTRACTdata extraction
REFMACphasing