X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.3
Details 0.5MICROL HANGING DROP CONTAINING 87MG/ML OF THERMOLYSIN IN BUFFER A (50MM TRIS/HCL PH8.3, 1M KSCN, 20MM CACL2) WAS EQUILIBRATED AGAINST 740MICROL BUFFER A AND 260MICROL WATER (SALTING-IN METHOD), pH 8.30

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 93.17 α = 90
b = 93.17 β = 90
c = 130.63 γ = 120
Symmetry
Space Group P 61 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 283
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH BENT MIRROR 1999-07-15
Diffraction Radiation
Monochromator Protocol
SI(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE DW21B -- LURE DW21B

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
2.18 19 92.4 0.086 -- -- 3.7 -- 15898 -- -- 12.1
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)
2.18 2.32 83.9 -- -- -- -- --

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
OTHER 2.18 18.46 -- 0.0 -- 16715 1703 92.4 -- 0.163 0.163 0.215 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 2.18 2.32 -- 261 2198 0.183 0.243 0.015 83.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 16.6
Anisotropic B[1][1] -0.72
Anisotropic B[1][2] -3.17
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.72
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.44
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.52
c_scbond_it 2.57
c_mcangle_it 2.05
c_mcbond_it 1.5
c_improper_angle_d 0.73
c_bond_d 0.011
c_angle_deg 1.3
c_dihedral_angle_d 22.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.16
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.26
Luzzati Sigma A (R-Free Set) 0.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2432
Nucleic Acid Atoms 0
Heterogen Atoms 25
Solvent Atoms 170

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
CNS Structure Solution
CNS 1.1 Structure Refinement
Software
Software Name Purpose
CNS version: 1.1 refinement
CNS model building