X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.8
Temperature 293.0
Details CRYSTALS WERE PRODUCED BY THE HANGING DROP METHOD EQUILIBRATING PURIFIED PROTEIN AT 5MG/ML IN 10 MM NA CACODYLATE, PH 6.8, O.25 M NACL, 1 MM EDTA AGAINST 27-32% SATURATED AMMONIUM SULPHATE, 0.25 M NA CL AND 10 MM CACODYLATE PH 6.8 AT ROOM TEMPERATURE, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 65.47 α = 90.97
b = 74.93 β = 93.33
c = 103.69 γ = 115.94
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 111
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS -- 1996-09-15
Diffraction Radiation
Monochromator Protocol
QUARTZ SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE SIEMENS -- -- --

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
2.99 24.35 70.7 0.1016 -- -- 1.6 -- 25373 -- -- 2.8
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)
2.99 3.16 20.3 0.3361 -- 1.03 1.2 --

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 2.99 24.35 -- 0.0 25369 25369 2576 70.9 -- -- 0.247 0.292 THIN SHELLS
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 2.99 3.16 -- 126 1127 0.43 0.428 0.013 20.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 21.8
Anisotropic B[1][1] 1.05
Anisotropic B[1][2] 2.37
Anisotropic B[1][3] 2.2
Anisotropic B[2][2] -4.56
Anisotropic B[2][3] -0.57
Anisotropic B[3][3] 3.51
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 0.7
x_bond_d 0.009
x_angle_deg 1.5
x_dihedral_angle_d 22.1
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.52
Luzzati Sigma A (Observed) 1.01
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.49
Luzzati Sigma A (R-Free Set) 0.86
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 11658
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

Software

Computing
Computing Package Purpose
XENGEN Data Reduction (intensity integration)
BIOMOL Data Reduction (data scaling)
AMORE Structure Solution
CNS 0.3 Structure Refinement
Software
Software Name Purpose
CNS version: 0.3 refinement
AMORE model building
BIOMOL data reduction
XENGEN data collection