X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7.2
Details Protein Concentration 7.5mg/ml, Buffer Tris-Hcl 25mM, Percipitant 82% MPD, Additive 0.001 Cacl2, pH 7.2, VAPOR DIFFUSION, SITTING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.87 α = 90
b = 21 β = 94.45
c = 52.45 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
IMAGE PLATE MARRESEARCH -- 1999-06-08
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

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
2.2 15 87.7 0.121 -- -- 12.5 71526 5166 -- -3.0 24.1
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)
2.2 2.28 59.3 0.186 -- -- 1.9 341

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
-- 2.2 14.92 0.0 0.0 71526 5176 286 87.7 0.212 0.201 0.201 0.276 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 2.2 2.34 -- 33 562 0.354 0.351 0.065 62.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 31.8
Anisotropic B[1][1] -5.27
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -3.16
Anisotropic B[2][2] 7.05
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.78
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.3
c_dihedral_angle_d 24.0
c_bond_d 0.006
c_improper_angle_d 0.89
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.31
Luzzati Sigma A (Observed) 0.4
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.42
Luzzati Sigma A (R-Free Set) 0.37
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 980
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 91

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing
CNS refinement version: 0.9