X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.1
Details CRYSTALLIZATION BY HANGING DROP VAPOR DIFFUSION RESERVOIR: 9% PEG 8000, 0.1 M TRIS/HCL PH 8.1, 5% MPD PROTEIN: 10 MG/ML DISSOLVED IN H20 DROP: 5 + 5 MICROLITER, vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 114.3 α = 90
b = 95.9 β = 90
c = 50.8 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 295
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAR scanner 180 mm plate -- 1994-03-09
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.5 -- SRS PX9.5

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
2.9 42 80.0 0.076 0.076 -- 2.7 -- 10477 -- 0.0 --
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)
2.9 3.0 75.8 0.319 0.319 -- -- --

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
MOLECULAR REPLACEMENT 2.9 10.0 -- -- -- 9798 -- 77.8 -- 0.234 0.234 -- --
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 2.9 3.03 -- -- 1089 0.314 -- -- 69.7
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 40.6
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 2.91
x_bond_d 0.014
x_angle_deg 1.71
x_dihedral_angle_d 24.23
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.34
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3438
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR 3.843 Structure Solution
X-PLOR 3.843 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.843 refinement
X-PLOR version: 3.843 model building