X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.5
Details CRYSTALLIZED IN NA2SO4 SOLUTION, pH 5.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 51.64 α = 90
b = 57.97 β = 90
c = 75.32 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 295
Diffraction Detector
Detector Diffraction Type Details Collection Date
'BLACK BOX' PROTOTYPE IMAGE PLATE J.HENDRIX,A.LENTFER IR-COATED CYLINDRICAL MIR 1995-07-14
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE DW21B -- LURE DW21B

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
1.87 30.4 92.9 0.022 -- -- 4.2 -- 17752 -- 3.0 14.75
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)
1.87 1.97 78.6 0.05 -- 63.9 3.9 --

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
SIRAS 1.87 10.0 -- 0.0 17752 17598 880 93.0 0.206 0.185 0.187 0.229 --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 15.13
RMS Deviations
Key Refinement Restraint Deviation
p_plane_restr 0.017
p_multtor_nbd 0.293
p_angle_d 0.053
p_planar_d 0.051
p_planar_tor 2.9
p_bond_d 0.02
p_scbond_it 3.41
p_chiral_restr 0.19
p_staggered_tor 17.3
p_scangle_it 5.27
p_transverse_tor 21.9
p_mcangle_it 3.01
p_mcbond_it 2.31
p_singtor_nbd 0.183
p_xyhbond_nbd 0.216
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.11
Luzzati Sigma A (Observed) 0.12
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1822
Nucleic Acid Atoms 0
Heterogen Atoms 6
Solvent Atoms 79

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling version: (CCP4)
SHARP phasing
PROLSQ refinement
CCP4 data scaling version: (SCALA)