X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Temperature 277.0
Details 20% MPD, 25 mM potassium phosphate, calcium chloride, pdTp, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 31.15 α = 90
b = 60.45 β = 93.11
c = 38.37 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
PIXEL DECTRIS PILATUS 6M Meridionally-bent fused silica mirror with palladium and uncoated stripes vertically-focusing at 6.6:1 demagnification 2013-04-01
Diffraction Radiation
Monochromator Protocol
Double crystal Si(111) with cryogenically-cooled first crystal and sagittally-bent second crystal horizontally-focusing at 3.3:1 demagnification SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X25 1.1000 NSLS X25

Data Collection

Overall
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
1.75 50 99.2 0.063 -- -- 6.3 14288 14288 0.0 0.0 33.2
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1.75 1.78 97.9 0.175 -- 12.1 6.4 686

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 1.75 38.31 0.213 0.0 14279 14279 720 98.93 0.1702 0.1702 0.1676 0.2207 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 1.75 1.794 960 45 915 0.154 0.257 -- 93.93
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 27.8061
Anisotropic B[1][1] -0.96
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.47
Anisotropic B[2][2] -1.55
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 2.57
RMS Deviations
Key Refinement Restraint Deviation
r_angle_refined_deg 1.926
r_dihedral_angle_4_deg 11.315
r_bond_refined_d 0.02
r_dihedral_angle_2_deg 35.085
r_gen_planes_refined 0.011
r_dihedral_angle_3_deg 14.589
r_chiral_restr 0.153
r_dihedral_angle_1_deg 6.284
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1030
Nucleic Acid Atoms 0
Heterogen Atoms 26
Solvent Atoms 106

Software

Software
Software Name Purpose
SCALEPACK data scaling
PHASER phasing version: 2.3.0
REFMAC refinement
PDB_EXTRACT data extraction version: 3.11
CBASS data collection
HKL-2000 data reduction