X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.2
Details PROTEIN CONCENTRATION 7.5 MG/ML HANGING DROP METHOD, WELL=100 MM AMMONIUM SULPHATE, 100 MM AMMONIUM CITRATE PH 5.2, 10 MM DTT

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 111.04 α = 90
b = 63.02 β = 111.65
c = 139.51 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 287
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2001-05-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF -- ESRF --

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
2.05 25 99.2 0.038 -- -- 3.2 -- 113010 -- -- 30.9
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)
2.05 2.18 90.0 0.034 -- 2.96 -- --

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 2.05 24.5 -- 0.0 -- 112652 5665 99.6 -- 0.24 0.24 0.268 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 2.05 2.18 -- 946 17599 0.278 0.309 0.01 99.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 63.8
Anisotropic B[1][1] 2.63
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.2
Anisotropic B[2][2] -0.43
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -2.2
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.9
c_improper_angle_d 1.76
c_scangle_it 3.82
c_mcbond_it 1.67
c_mcangle_it 2.29
c_dihedral_angle_d 21.7
c_scbond_it 2.77
c_bond_d 0.013
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.28
Luzzati Sigma A (Observed) 0.19
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.32
Luzzati Sigma A (R-Free Set) 0.23
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 9300
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 628

Software

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