X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Details 30 % (V/V) MPD, 0.1 M SODIUM ACETETE BUFFER, PH 4.6, 20 MM CALCIUM CHLORIDE

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 42.86 α = 90
b = 85.7 β = 100.47
c = 75.48 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE ADSC IMAGE PLATE -- 2000-09-08
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX14.1 -- SRS PX14.1

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
2.2 30 99.1 0.049 -- -- 6.2 -- 27803 -- -- 28.6
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)
2.2 2.25 98.4 0.205 -- -- -- --

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
MAD 2.2 24.74 -- 0.0 -- 27080 1370 99.1 -- 0.193 0.193 0.257 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.2 2.34 -- 242 4244 0.21 0.29 0.019 98.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 44.6
Anisotropic B[1][1] -6.42
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -1.23
Anisotropic B[2][2] 0.82
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 5.6
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.12
c_scangle_it 3.92
c_angle_deg 1.5
c_scbond_it 2.68
c_mcangle_it 2.53
c_bond_d 0.014
c_dihedral_angle_d 18.0
c_mcbond_it 1.59
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.23
Luzzati Sigma A (Observed) 0.17
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.32
Luzzati Sigma A (R-Free Set) 0.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3792
Nucleic Acid Atoms 0
Heterogen Atoms 11
Solvent Atoms 393

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
SOLVE phasing
SHARP phasing
CNS refinement version: 1.0