X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.2
Details 0.1 M SODIUM ACETATE BUFFER (PH 5.2) CONTAINING 0.1 M AMMONIUM SULFATE, 26% POLYETHYLENE GLYCOL MONOMETHYLETHER 2000, AND 2.5 MM SODIUM TETRATHIONATE

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 93.98 α = 90
b = 45.45 β = 105.03
c = 110.04 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 93
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS II SUPPER LONG MIRRORS 1997-08-15
Diffraction Radiation
Monochromator Protocol
SUPPER LONG MIRRORS SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU300 -- -- --

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
2.1 25 99.7 -- 0.191 -- 5.0 -- 58449 -- -- --
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)
2.1 2.2 75.0 -- -- 3.8 5.0 --

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 2.1 25.0 -- 0.0 -- 48814 4505 91.7 -- 0.213 0.213 0.249 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 2.1 2.2 -- 506 4431 0.251 0.291 -- 75.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 13.5
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.005
x_angle_deg 1.06
x_improper_angle_d 0.527
x_dihedral_angle_d 24.8
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.24
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.28
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6584
Nucleic Acid Atoms 0
Heterogen Atoms 214
Solvent Atoms 373

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing
X-PLOR refinement version: 3.8