X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.2
Details 18% PEG 4000, 2% EG, 200MM A.S, 100MM CITRATE PH 5.2

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 77.53 α = 90
b = 77.53 β = 90
c = 319.48 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 110
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE FUJI -- --
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A -- NSLS X4A

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
2.7 20 92.1 -- 0.087 -- 2.95 -- 29069 -- -- --

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 2.7 6.0 -- 2.0 -- 23940 1221 83.6 -- 0.222 0.222 0.321 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 2.7 2.85 -- 147 2754 0.33 0.363 0.03 61.7
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 36.5
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 2.68
x_scbond_it 1.66
x_mcangle_it 3.17
x_mcbond_it 1.85
x_improper_angle_d 1.49
x_bond_d 0.011
x_angle_deg 1.73
x_dihedral_angle_d 26.3
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.34
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6424
Nucleic Acid Atoms 0
Heterogen Atoms 89
Solvent Atoms 159

Software

Computing
Computing Package Purpose
HKL, DENZO Data Reduction (intensity integration)
CCP4 (AGROVATA, SCALA) Data Reduction (data scaling)
X-PLOR Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
X-PLOR model building
AGROVATA data reduction
SCALA data reduction
DENZO data collection
HKL data collection