X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5
Details HANGING DROP VAPOR DIFFUSION. 1.5 MICROLITER DROPS OF PROTEIN:INHIBITOR SOLUTION (8.7 MG/ML IN 10 MILLIMOLAR TRIS-HCL PH 8.5, 10 MILLIMOLAR DTT, 3 MILLIMOLAR SODIUM AZIDE) WERE MIXED WITH AN EQUAL VOLUME OF RESERVOIR BUFFER (7% PEG-6000 (W/W), 0.10 MOLAR SODIUM CITRATE PH 5.0, 10 MILLIMOLAR DTT, 3 MILLIMOLAR SODIUM AZIDE) AND INCUBATED AT ROOM TEMPERATURE, vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 69.81 α = 90
b = 84.62 β = 90
c = 96.79 γ = 90
Symmetry
Space Group I 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS -- 1995-11-09
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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
2.5 36 87.1 0.0634 0.0555 -- 2.33 -- 8929 -- 0.0 31.34
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)
2.5 2.59 87.1 0.257 0.262 2.59 2.27 --

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 2.5 20.0 -- 2.0 -- 7987 845 78.0 -- 0.195 0.195 0.275 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 2.5 2.59 -- 38 321 0.257 0.33 -- 35.8
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 23.56
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.007
x_dihedral_angle_d 24.14
x_angle_deg 1.308
x_improper_angle_d 1.091
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1905
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 34

Software

Software
Software Name Purpose
X-PLOR model building version: 3.1
X-PLOR refinement version: 3.1
SAINT data reduction
SAINT data scaling
X-PLOR phasing version: 3.1