X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 3.1
Details CRYSTALS WITH DIMENSIONS 0.25X0.25X0.25 MM3 WERE OBTAINED AT ROOM TEMPERATURE BY VAPOUR DIFFUSION AGAINST A RESERVOIR CONTAINING 0.1 M CITRIC ACID PH 3.1, 2 M AMMONIUM SULPHATE, 0.2 M SODIUM CHLORIDE, AND 1MM DTT/EDTA. THE HANGING DROP CONTAINED 1:1 RATIO OF RESERVOIR AND PROTEIN-PEPTIDE SOLUTIONS., vapor diffusion

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 46.68 α = 90
b = 73.79 β = 90
c = 80 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1996-10
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE BW7B -- EMBL/DESY, Hamburg BW7B

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
1.6 39.3 99.7 0.058 0.058 -- 6.59 -- 226846 -- 0.0 15.4
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)
1.6 1.63 98.4 0.58 0.58 1.9 3.7 --

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 1.65 8.0 -- 1.0 -- 31081 -- -- -- 0.205 0.205 0.266 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 13.5
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 1.678
x_bond_d 0.01
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2126
Nucleic Acid Atoms 0
Heterogen Atoms 20
Solvent Atoms 269

Software

Software
Software Name Purpose
AMoRE phasing
X-PLOR refinement version: 3.851
DENZO data reduction
SCALEPACK data scaling