X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6
Temperature 18.0
Details 100mM sodium citrate and 1.5-1.7M lithium chloride, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 18K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 49.57 α = 90
b = 89.56 β = 90
c = 98.6 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F2 0.9789, 0.9783, 0.9500 CHESS F2
SYNCHROTRON CHESS BEAMLINE A1 0.92 CHESS A1

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
2.3 44 89.7 -- 0.089 -- 4.5 -- 19621 3.0 3.0 54.5
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)
2.3 2.44 87.5 -- -- -- -- --

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 2.31 43.19 -- 2.0 -- 19621 1967 98.1 0.2041 0.199 0.199 0.236 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 2.3 2.44 -- 292 2582 0.336 0.38 0.022 87.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 67.0
Anisotropic B[1][1] 20.43
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.13
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -20.55
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 13.67
c_scbond_it 10.28
c_mcangle_it 10.02
c_mcbond_it 6.77
c_improper_angle_d 0.67
c_dihedral_angle_d 25.1
c_angle_deg 1.3
c_bond_d 0.006
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.36
Luzzati Sigma A (R-Free Set) 0.4
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2103
Nucleic Acid Atoms 0
Heterogen Atoms 15
Solvent Atoms 152

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHAKE-N-BAKE Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement