X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.3
Temperature 293.0
Details 17.5% AMMONIUM SULFATE, pH 5.30, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 139.06 α = 90
b = 139.06 β = 90
c = 160.57 γ = 120
Symmetry
Space Group H 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 104
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2003-04-16
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LNLS BEAMLINE D03B-MX1 1.431 LNLS D03B-MX1

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 56.38 91.4 -- 0.071 -- 5.5 50231 34461 2.0 2.0 --
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 2.95 96.4 -- 0.376 1.3 5.3 --

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 7.0 -- 2.0 12726 12508 1251 91.51 0.304 0.215 0.215 0.301 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 39.82
RMS Deviations
Key Refinement Restraint Deviation
x_dihedral_angle_d 25.696
x_bond_d 0.013
x_angle_deg 1.901
x_improper_angle_d 1.614
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.34
Luzzati Resolution Cutoff (Low) 7.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2251
Nucleic Acid Atoms 0
Heterogen Atoms 31
Solvent Atoms 43

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
AMoRE phasing
X-PLOR refinement
CCP4 data scaling version: (SCALA)