X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Microbatch
pH 8.5
Temperature 296.0
Details Phosphate buffer, pH 8.5, Microbatch, temperature 296K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 91.82 α = 90
b = 44.49 β = 90
c = 143.93 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC Yale Mirrors 2000-04-06
IMAGE PLATE RIGAKU RAXIS IIC Yale mirrors 2000-04-04
Diffraction Radiation
Monochromator Protocol
Yale Mirrors SINGLE WAVELENGTH
Yale Mirrors SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 1.5418 -- --
ROTATING ANODE RIGAKU RU200 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
1.9 40 94.8 0.069 -- -- 2.2 22491 22491 1.0 1.0 15.9
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)
1.9 1.97 81.7 0.256 -- -- -- 1909

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 1.9 26.76 -- 0.0 22491 22491 1773 94.7 0.187 0.171 0.171 0.201 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 1.9 1.97 -- 153 1748 0.234 0.277 0.022 81.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 18.1
Anisotropic B[1][1] 0.22
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.23
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.46
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 4.92
c_scbond_it 3.61
c_mcangle_it 2.51
c_mcbond_it 2.05
c_improper_angle_d 1.2
c_dihedral_angle_d 18.2
c_angle_deg 1.3
c_bond_d 0.006
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.13
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.22
Luzzati Sigma A (R-Free Set) 0.17
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2232
Nucleic Acid Atoms 0
Heterogen Atoms 86
Solvent Atoms 151

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS model building