X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.3
Details 36-38% PEG 4000, 0.1 M PIPES, 1:1 RATIO WELL AND 4.6 MG/ML PROTEIN IN WATER, pH 7.3, VAPOR DIFFUSION, HANGING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 36.64 α = 90
b = 52.38 β = 90.92
c = 31.59 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS HI-STAR -- 1999-03-05
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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
2.1 20 91.0 0.034 -- -- 3.1 6804 6804 0.0 0.0 5.7
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)
2.09 2.22 38.2 0.145 -- -- 1.7 --

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
-- 2.1 20.0 0.0 0.0 6804 6302 502 90.8 0.19 0.189 0.189 0.228 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 2.1 2.23 -- 54 455 0.251 0.362 0.049 44.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 18.5
Anisotropic B[1][1] 3.44
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -0.83
Anisotropic B[2][2] 4.02
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -7.46
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.63
c_scbond_it 2.13
c_mcbond_it 1.16
c_angle_deg 1.3
c_dihedral_angle_d 26.0
c_bond_d 0.007
c_mcangle_it 1.8
c_scangle_it 3.33
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Sigma A (Observed) 0.21
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.29
Luzzati Sigma A (R-Free Set) 0.31
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1058
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 73

Software

Software
Software Name Purpose
CNS refinement
XENGEN data reduction
XENGEN data scaling
CNS phasing