X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 8.5
Details PROTEIN CONCENTRATION 10MG/ML. WELL SOLUTION 1.9M AMMONIUM SULFATE 0.1M TRIS-HCL PH 8.5. CRYSTALLIZED USING VAPOR DIFFUSION., vapor diffusion

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 38.84 α = 90
b = 50.47 β = 90
c = 64.72 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 133
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAR scanner 300 mm plate -- 1997-09
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12B -- NSLS X12B

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
2.2 25 97.6 0.046 -- -- 2.7 -- 8725 -- 0.0 13.9
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)
2.2 2.24 99.0 0.087 -- 3.1 2.7 --

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
MULTIPLE ISOMORPHOUS REPLACEMENT WITH ANOMALOUS SCATTERING (MIRAS) 2.2 5.0 -- 3.0 -- 5753 575 95.0 -- 0.233 0.233 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 2.2 2.3 -- 52 85 0.26 0.3 -- 92.0
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.2
x_dihedral_angle_d 26.7
x_angle_deg 1.4
x_bond_d 0.006
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.2
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 990
Nucleic Acid Atoms 0
Heterogen Atoms 5
Solvent Atoms 64

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
X-PLOR model building version: 3.843
X-PLOR refinement version: 3.843
X-PLOR phasing version: 3.843