X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Small Tubes
pH 8.5
Temperature 296.0
Details Sodium and Postasium phosphate, pH 8.5, SMALL TUBES, temperature 296K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 92.04 α = 90
b = 44.28 β = 90
c = 144.03 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 296
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV Osmic mirrors 2002-07-01
Diffraction Radiation
Monochromator Protocol
Osmic mirrors SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU300 1.5418 -- --

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 40 95.2 0.084 0.084 -- 3.4 24623 24623 0.0 0.0 25.4
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 1.92 87.8 0.321 0.321 -- -- --

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 39.9 -- 0.0 24623 24551 1189 95.8 0.19 0.189 0.189 0.21 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 1.85 1.92 -- 116 2224 0.3 0.288 0.027 92.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 26.6
Anisotropic B[1][1] 9.52
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -6.34
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -3.18
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.11
c_mcangle_it 2.19
c_angle_deg 1.0
c_mcbond_it 1.67
c_dihedral_angle_d 18.2
c_bond_d 0.006
c_scbond_it 3.01
c_scangle_it 4.41
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.19
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.23
Luzzati Sigma A (R-Free Set) 0.21
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2283
Nucleic Acid Atoms 0
Heterogen Atoms 90
Solvent Atoms 127

Software

Software
Software Name Purpose
CNS refinement version: 1.0
SCALEPACK data scaling
CNS phasing