X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.4
Details 15 MG/ML PROTEIN, 0.1M NAAC/HAC BUFFER PH 5.5, 12% MPEG 5000, 0.075M CAAC2, 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 94.34 α = 90
b = 103.8 β = 90
c = 137.41 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- --
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-2 -- ESRF ID14-2

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 27.74 91.1 -- 0.077 -- 2.4 -- 62471 -- -- 25.3
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 84.5 -- 0.198 6.7 2.2 --

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
MOLECULAR REPLACEMENT 2.2 27.77 -- 0.0 -- 62471 3161 90.5 -- 0.198 0.198 0.227 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 -- 491 9103 0.2 0.236 0.011 84.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 23.7
Anisotropic B[1][1] 1.43
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.34
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.77
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 1.74
c_angle_deg 1.6
c_improper_angle_d 1.04
c_mcangle_it 2.49
c_scbond_it 2.62
c_scangle_it 3.44
c_bond_d 0.014
c_dihedral_angle_d 22.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.24
Luzzati Sigma A (Observed) 0.1
Luzzati ESD (R-Free Set) 0.28
Luzzati Sigma A (R-Free Set) 0.16
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7806
Nucleic Acid Atoms 0
Heterogen Atoms 276
Solvent Atoms 434

Software

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