X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7
Details CRYSTALLISED FROM HANGING DROP WHICH ALSO CONTAINED 50MM POTASSIUM PHOSPHATE, 5MM DTT AND 30% SATURATED AMMONIUM SULPHATE, PH 7.0. THE WELL SOLUTION WAS 45% SATURATED AMMONIUM SULPHATE., vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 135.13 α = 90
b = 135.13 β = 90
c = 116.74 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH COLLIMATOR, DUAL SLITS 1992-11
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
2.8 20 95.9 -- 0.099 -- 7.2 -- 29373 -- -- --

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 2.82 19.76 -- 0.0 -- 29307 1436 97.7 -- 0.186 0.186 0.273 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 2.82 2.93 -- 150 2611 0.268 0.352 -- 93.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model TARGET SIGMA FOR 1-2 B FA PAIRS (BOND), 1-3 PAIRS (ANGLE)
Mean Isotropic B 26.5
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 4.49
x_angle_deg 1.7
x_scbond_it 2.89
x_bond_d 0.013
x_mcbond_it 2.89
x_mcangle_it 4.49
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7302
Nucleic Acid Atoms 0
Heterogen Atoms 20
Solvent Atoms 129

Software

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