X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Details VAPOUR DIFFUSION AT ROOM TEMP DROP CONTAINS 1.5 MICROLITER OF PROTEIN SOLUTION (10MG/ML) AND 1.5 MICROLITER OF MOTHER LIQUOR. MOTHER LIQUOR CONTAINS 1M AMMONIUM SULFATE, 0.17M GUANIDINE HYDROCHLORIDE, 0.02M KCL, 0.1M ACETATE PH 4.6.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 107.74 α = 90
b = 285.23 β = 90
c = 91.68 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- -- -- 2003-03-15
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-4 1.0092, 1.0075, 1.0015, 0.8856 ESRF ID14-4

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 10 98.4 0.065 -- -- 10.0 -- 93248 -- -- 15.6
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)
2.0 2.1 84.7 0.37 -- 1.23 3.5 --

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 2.0 14.4 -- 0.0 -- 88501 4690 93.3 -- 0.195 0.195 0.23 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 2.0 2.13 -- 662 12234 0.301 0.31 0.012 81.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 28.7
Anisotropic B[1][1] 17.24
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -8.15
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -9.09
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 1.9
c_improper_angle_d 0.86
c_dihedral_angle_d 23.8
c_angle_deg 1.3
c_bond_d 0.005
c_scangle_it 2.84
c_mcbond_it 1.21
c_scbond_it 1.95
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.22
Luzzati Sigma A (Observed) 0.32
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.27
Luzzati Sigma A (R-Free Set) 0.31
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7859
Nucleic Acid Atoms 0
Heterogen Atoms 117
Solvent Atoms 938

Software

Software
Software Name Purpose
CNS refinement version: 1.1
DENZO data reduction
SCALEPACK data scaling
SHARP phasing