X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 298.0
Details PEG 2K, NaCl, sodium cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 42.2 α = 90
b = 100.61 β = 115.64
c = 46.54 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 MARRESEARCH two crystals monochromator between two cylindrical parabolic mirrors 2002-12-14
Diffraction Radiation
Monochromator Protocol
Sagitally focused Si (111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM30A 0.979711 ESRF BM30A

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 15.57 98.6 -- 0.073 -- 3.6 -- 27221 0.0 0.0 12.7
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)
1.9 2.0 98.0 -- 0.19 3.7 3.8 3947

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
difference fourier synthesis 1.9 15.57 0.0 0.0 -- 27014 1351 97.9 0.185 0.172 0.172 0.207 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 2.0 3947 212 4207 0.209 0.265 0.018 96.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model OVERALL
Mean Isotropic B 16.3
Anisotropic B[1][1] -2.08
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 3.16
Anisotropic B[2][2] -0.35
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 2.43
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.6
c_scbond_it 1.8
c_mcangle_it 2.48
c_mcbond_it 1.9
c_improper_angle_d 0.82
c_dihedral_angle_d 22.8
c_angle_deg 1.3
c_bond_d 0.005
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.21
Luzzati Sigma A (Observed) 0.19
Luzzati Resolution Cutoff (Low) 6.0
Luzzati ESD (R-Free Set) 0.25
Luzzati Sigma A (R-Free Set) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2763
Nucleic Acid Atoms 0
Heterogen Atoms 15
Solvent Atoms 466

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
CNS Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement