X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.5
Details SODIUM ACETATE BUFFER,PH=4.5 AMMONIUM SULPHATE 1.7 - 1.9M BPTI 10 - 20 MG/ML

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 120.48 α = 90
b = 120.48 β = 90
c = 111.3 γ = 120
Symmetry
Space Group P 63 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 292
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAR scanner 345 mm plate MIRRORS 1997-03
Diffraction Radiation
Monochromator Protocol
SILICON CRYSTAL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE DW32 -- LURE DW32

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
2.58 19.8 98.5 -- 0.037 -- 8.6 -- 15263 -- 3.0 32.5
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)
2.58 2.67 91.1 0.146 0.146 5.1 -- --

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 2.58 19.76 -- 2.0 -- 15239 1545 98.3 -- 0.19 0.19 0.218 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 2.58 2.67 -- 136 1211 0.299 0.306 0.026 89.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model GROUP
Mean Isotropic B 23.8
Anisotropic B[1][1] 0.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.0
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.006
x_angle_deg 1.4
x_dihedral_angle_d 22.9
x_improper_angle_d 1.07
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.35
Luzzati Sigma A (Observed) 0.3
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2192
Nucleic Acid Atoms 0
Heterogen Atoms 15
Solvent Atoms 110

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
AMORE Structure Solution
X-PLOR 3.851 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.851 refinement
MOSFLM data collection
SCALA data reduction
AMORE model building