X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Details HANGING DROPS CONTAINING 1:1 RATIO OF 20 MG/ML PROTEIN SOLUTION AND RESERVOIR SOLUTION (12 % TO 25 % PEG 6,000)., pH 7.00

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 46.22 α = 90
b = 59.24 β = 109.8
c = 51.31 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1995-08-20
Diffraction Radiation
Monochromator Protocol
SILICON SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

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
1.14 39.5 85.2 0.078 -- -- 2.9 -- 80691 -- 0.0 10.8
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)
1.14 1.15 78.8 0.238 -- 3.15 2.1 --

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 1.14 39.5 -- 0.0 -- 80632 2795 85.1 -- 0.18 0.18 0.193 FREER FLAG (CCP4)
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 1.14 1.16 -- 133 3375 0.354 0.445 0.038 75.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 13.87
Anisotropic B[1][1] -0.847
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -1.132
Anisotropic B[2][2] 0.277
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.57
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 0.714
c_scangle_it 2.044
c_angle_deg 1.47
c_improper_angle_d 0.95
c_mcangle_it 1.086
c_bond_d 0.006
c_dihedral_angle_d 22.44
c_scbond_it 1.322
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.13
Luzzati Sigma A (Observed) 0.0889
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.1404
Luzzati Sigma A (R-Free Set) 0.0939
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2312
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 248

Software

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