X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 293.0
Details 5mM Tris, 20% PEG 8k, 0.2 M Ammonium Sulfate, 50 mM Sodium Chloride, and 5 mM DTT, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.89 α = 90
b = 101.59 β = 97
c = 62.12 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2003-02-03
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A 0.982 NSLS X4A

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 29.68 91.5 0.071 0.069 -- 3.26 76470 69770 -3.0 -3.0 16.7
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)
2.2 2.28 99.1 0.354 0.287 3.74 2.7 2778

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 2.2 29.68 -- 2.0 69770 69770 6881 9.9 0.331 0.259 0.225 0.289 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 29.68 69770 6881 -- 0.225 0.289 0.003 9.9
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 35.8
Anisotropic B[1][1] 0.67
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 8.17
Anisotropic B[2][2] -5.48
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 4.81
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.007
c_improper_angle_d 0.81
c_dihedral_angle_d 22.5
c_angle_deg 1.2
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.28
Luzzati Sigma A (Observed) 0.24
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.38
Luzzati Sigma A (R-Free Set) 0.38
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5150
Nucleic Acid Atoms 0
Heterogen Atoms 21
Solvent Atoms 357

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
SOLVE phasing
CNS refinement