X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.5
Details CRYSTALS WERE GROWN BY THE HANGING DROP VAPOR DIFFUSION METHOD AT 13 DEGRESS CELSIUS BY MIXING 2 MICROLITERS OF PROTEIN SOLUTION WITH A RESERVOIR SOLUTION CONTAINING: 18% (W/V) PEG 3350, 0.1 M TRIS PH 8.5, 0.2M LITHIUM SULFATE, 0.1(W/V) BETA-OCTYLGLCOSIDE.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 51.52 α = 90
b = 57.4 β = 90
c = 105.07 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 87
Diffraction Detector
Detector Diffraction Type Details Collection Date
PIXEL DECTRIS PILATUS 6M -- 2011-10-17
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 17-ID -- APS 17-ID

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
1.85 105.07 96.9 0.04 -- -- 5.9 -- 26466 -- 2.0 23.1
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)
1.85 1.95 82.1 0.43 -- 3.7 4.1 --

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 1.85 52.53 -- 0.0 26412 26412 762 95.2 -- 0.201 0.2 0.231 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 1.84 1.96 -- 95 3240 0.245 0.264 0.027 73.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 31.6
Anisotropic B[1][1] -0.87
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -4.2
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 5.06
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.005
c_dihedral_angle_d 18.5
c_scbond_it 2.37
c_scangle_it 3.6
c_improper_angle_d 0.66
c_mcbond_it 1.49
c_angle_deg 0.8
c_mcangle_it 2.24
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.13
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.24
Luzzati Sigma A (R-Free Set) 0.14
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2313
Nucleic Acid Atoms 0
Heterogen Atoms 30
Solvent Atoms 210

Software

Software
Software Name Purpose
CNX refinement version: 2005
AutoPROC data reduction
SCALAVIS data scaling
CNX phasing