X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.7
Details HCA II CRYSTALLIZED FROM 2.3 M AMMONIUM SULFATE, 50MM TRIS-HCL, 3MM SODIUM AZIDE, PH 7.7

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 42.61 α = 90
b = 41.69 β = 104.24
c = 72.78 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS -- 1996-11
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE MACSCIENCE M18XH -- -- --

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 30.9 81.0 0.076 0.09 -- 3.4 -- 14777 -- -- --
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)
2.0 2.25 73.0 0.064 0.174 10.7 2.3 --

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
FOURIER SYNTHESIS 2.0 15.0 -- -- 14464 14464 -- 80.6 -- -- 0.154 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 14.9
RMS Deviations
Key Refinement Restraint Deviation
p_bond_d 0.018
p_planar_tor 6.3
p_chiral_restr 0.174
p_transverse_tor 29.5
p_staggered_tor 17.9
p_multtor_nbd 0.183
p_angle_d 0.056
p_planar_d 0.08
p_singtor_nbd 0.177
p_xyhbond_nbd 0.211
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.15
Luzzati Sigma A (Observed) 0.15
Luzzati Resolution Cutoff (Low) 30.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2039
Nucleic Acid Atoms 0
Heterogen Atoms 4
Solvent Atoms 177

Software

Software
Software Name Purpose
CCP4 model building
CCP4 refinement
XENGEN data reduction
XENGEN data scaling
CCP4 phasing