X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Temperature 294.0
Details PROTEIN WAS CRYSTALLIZED IN 1.8M AMMONIUM SULFATE AND 100MM MES PH 6.5 AT 21 DEGREES C., temperature 294K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 40.8 α = 90
b = 97 β = 90
c = 92 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE AREA DETECTOR MARRESEARCH MIRROR 1996-12
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL1-5 0.979, 1.033 SSRL BL1-5

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
1.93 30 88.4 -- 0.032 -- 3.5 -- 14216 -- 2.0 13.0
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)
1.93 1.96 78.1 -- 0.293 3.1 2.0 --

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, SIR 1.93 30.0 -- 0.0 -- 13564 1278 96.0 -- 0.251 0.251 0.298 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 1.93 2.05 -- 204 1957 0.278 0.335 0.023 93.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 29.1
Anisotropic B[1][1] -3.94
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.52
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 3.43
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.78
c_scbond_it 2.02
c_mcangle_it 1.85
c_mcbond_it 1.24
c_improper_angle_d 0.7
c_bond_d 0.006
c_angle_deg 1.4
c_dihedral_angle_d 23.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.27
Luzzati Sigma A (Observed) 0.17
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.34
Luzzati Sigma A (R-Free Set) 0.27
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1371
Nucleic Acid Atoms 0
Heterogen Atoms 15
Solvent Atoms 185