X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 3.5
Temperature 298.0
Details 0.1M citric acid, 3.0M sodium chloride, pH 3.5, VAPOR DIFFUSION, SITTING DROP, temperature 298.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 41.08 α = 90
b = 62.61 β = 90
c = 120.27 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 210 MIRRORS 2008-10-29
Diffraction Radiation
Monochromator Protocol
Si(III) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C 0.979 NSLS X12C

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
2.02 34.35 100.0 0.098 -- -- 12.9 21021 21021 0.0 0.0 27.3
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)
2.02 2.09 100.0 0.334 -- 1.0 11.6 2033

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
SAD 2.02 34.35 -- 0.0 21021 19922 953 94.6 0.238 0.226 0.226 0.263 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 2.0 2.13 -- 121 2401 0.242 0.305 0.028 71.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 25.9
Anisotropic B[1][1] 16.69
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -4.99
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -11.7
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.68
c_dihedral_angle_d 23.6
c_bond_d 0.005
c_angle_deg 1.4
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.24
Luzzati Sigma A (Observed) 0.13
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.31
Luzzati Sigma A (R-Free Set) 0.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2344
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 179

Software

Software
Software Name Purpose
CNS refinement version: 1.1
CBASS data collection
HKL-2000 data reduction
HKL-2000 data scaling
SHELXD phasing
SHARP phasing
ARP/wARP model building