X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.9
Temperature 291.0
Details 23% PEG 4000, 18% propylene glycol, 0.1 M citrate, pH 4.9, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 73.69 α = 90
b = 73.29 β = 109.48
c = 80.9 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD APS-1 vertically focusing mirror 1998-02-06
Diffraction Radiation
Monochromator Protocol
Sagitally focusing crystal/double crystal monochromator Si-111 SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID 1.0332 APS 19-ID

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
1.5 99 88.5 0.077 -- -- 2.13 244628 114797 0.0 0.0 20.5
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)
1.5 1.55 46.6 0.321 -- -- 2.67 6004

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 1.55 20.0 0.0 0.0 109218 109218 5507 92.9 -- -- 0.202 0.2486 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 1.55 1.65 -- 704 12224 0.326 0.324 0.012 66.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Restrained
Mean Isotropic B 23.0
Anisotropic B[1][1] 0.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.0
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 4.46
x_scbond_it 2.77
x_mcangle_it 2.18
x_mcbond_it 1.44
x_improper_angle_d 1.46
x_dihedral_angle_d 23.6
x_angle_deg 1.7
x_bond_d 0.01
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.21
Luzzati Resolution Cutoff (Low) 20.0
Luzzati ESD (R-Free Set) 0.22
Luzzati Sigma A (R-Free Set) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6554
Nucleic Acid Atoms 0
Heterogen Atoms 61
Solvent Atoms 608

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR Structure Solution
X-PLOR 3.843 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.843 refinement
X-PLOR model building