X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Microseeding
pH 6.1
Temperature 277.0
Details PROTEIN WAS CRYSTALLIZED AT 50MG/ML FROM 2.15 M (NH4)2SO4, 50 MM KPI, PH 6.15, 4 DEG C, NUCLEATION INDUCED BY MICROSEEDING FROM CRYSTALS GROWN FROM 14MG/ML PROTEIN, 2.4 M (NH4)2SO4, 50 MM KPI, PH 7.4, 4 DEG C., microseeding, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 79.68 α = 90
b = 85.64 β = 90
c = 108.85 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 295
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS HI-STAR NO 1997-12
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ENRAF-NONIUS FR591 -- -- --

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
1.9 12.8 89.2 0.042 0.042 -- 3.1 -- 26323 -- 2.0 16.68
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)
1.9 1.97 72.3 0.042 0.042 5.3 2.3 --

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
ISOMORPHOUS WITH FE-SOD OF P.SHERMANII 1.9 9.0 -- 4.5 -- 24891 2493 84.81 -- 0.156 0.156 0.205 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 1.9 1.99 -- 220 2093 0.206 0.246 -- 64.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 15.9
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 2.5
x_scbond_it 2.0
x_mcangle_it 2.0
x_mcbond_it 1.5
x_improper_angle_d 0.92
x_bond_d 0.005
x_angle_deg 1.32
x_dihedral_angle_d 21.84
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.18
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3210
Nucleic Acid Atoms 0
Heterogen Atoms 2
Solvent Atoms 456

Software

Computing
Computing Package Purpose
SAINT Data Reduction (intensity integration)
CCP4 (AGROVATA, TRUNCATE) Data Reduction (data scaling)
X-PLOR 3.1 Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
X-PLOR version: 3.1 model building