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_transverse_tor 21.9
p_staggered_tor 17.3
p_planar_tor 2.9
p_xyhbond_nbd 0.216
p_multtor_nbd 0.293
p_bond_d 0.02
p_angle_d 0.053
p_planar_d 0.051
p_mcbond_it 2.31
p_mcangle_it 3.01
p_scbond_it 3.41
p_scangle_it 5.27
p_plane_restr 0.017
p_chiral_restr 0.19
p_singtor_nbd 0.183
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

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
SHARP Structure Solution
PROLSQ Structure Refinement
Software
Software Name Purpose
PROLSQ refinement
SHARP model building
SCALA version: (CCP4) data reduction
MOSFLM data collection