X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5
Temperature 15.0
Details 1.7 M (NH4)2SO4, 2 mM CaCl2, 0.1 M NaAc , pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 15K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 96.76 α = 90
b = 96.76 β = 90
c = 173.39 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 1998-11-09
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 -- MPG/DESY, HAMBURG BW6

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
2.8 50 98.3 0.077 -- -- 4.5 176558 23400 2.0 3.0 74.107
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)
2.8 2.96 91.8 0.484 -- 1.5 4.0 --

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 2.8 50.0 1.0 2.0 -- 22758 2244 95.7 -- 0.216 0.216 0.316 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 2.8 2.82 -- 32 353 0.38 0.385 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 52.4
Anisotropic B[1][1] -9.494
Anisotropic B[1][2] -7.373
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -9.494
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 18.988
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.5
c_scbond_it 2.0
c_mcangle_it 2.0
c_mcbond_it 1.5
c_improper_angle_d 1.1
c_bond_d 0.015
c_angle_deg 1.97
c_dihedral_angle_d 19.3
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.405
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5079
Nucleic Acid Atoms 0
Heterogen Atoms 165
Solvent Atoms 328

Software

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