X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Details 200 MM DI-AMMONIUM HYDROGEN CITRATE AND 20% (V/V) PEG3350

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 48.28 α = 90
b = 118.77 β = 95.17
c = 168.38 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC -- 2009-02-06
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSRRC BEAMLINE BL13B1 -- NSRRC BL13B1

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
1.99 30 99.3 0.07 -- -- 3.1 -- 239510 -- 2.0 9.3
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)
1.99 2.06 99.1 0.33 -- 3.7 3.0 --

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 1.99 25.59 -- 2.0 -- 203797 9814 80.0 -- 0.175 0.175 0.206 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 1.99 2.11 -- 1146 23254 0.193 0.217 0.006 57.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 23.2
Anisotropic B[1][1] -4.34
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 1.91
Anisotropic B[2][2] -2.72
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 7.06
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.57
c_scbond_it 2.37
c_mcangle_it 1.79
c_mcbond_it 1.22
c_improper_angle_d 0.68
c_bond_d 0.005
c_angle_deg 1.0
c_dihedral_angle_d 18.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.19
Luzzati Sigma A (Observed) 0.12
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.23
Luzzati Sigma A (R-Free Set) 0.14
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 10795
Nucleic Acid Atoms 0
Heterogen Atoms 4
Solvent Atoms 1202

Software

Computing
Computing Package Purpose
HKL2000 Data Reduction (data scaling)
SOLVE-RESOLVE Structure Solution
CNS 1.2 Structure Refinement
Software
Software Name Purpose
CNS version: 1.2 refinement
SOLVE-RESOLVE model building