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_transverse_tor 29.5
p_staggered_tor 17.9
p_planar_tor 6.3
p_xyhbond_nbd 0.211
p_multtor_nbd 0.183
p_bond_d 0.018
p_angle_d 0.056
p_planar_d 0.08
p_chiral_restr 0.174
p_singtor_nbd 0.177
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 2038
Nucleic Acid Atoms 0
Heterogen Atoms 13
Solvent Atoms 155

Software

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