X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.6
Details THE PROTEIN WAS CRYSTALLIZED FROM 2.4M AMMONIUM SULFATE, 100MM TRIS PH 7.6

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 72.62 α = 90
b = 72.62 β = 90
c = 60.32 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 -- 1997-03-20
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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
2.2 25 95.7 0.096 -- -- 5.2 -- 9880 -- 1.0 20.97
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)
2.2 2.25 91.1 0.35 -- -- 4.0 --

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 2.2 22.0 -- 1.0 -- 9868 944 95.85 -- 0.175 0.175 0.239 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 2.2 2.3 -- 114 893 0.227 0.278 -- 89.2
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 21.32
RMS Deviations
Key Refinement Restraint Deviation
x_bond_d 0.008
x_improper_angle_d 2.232
x_angle_deg 1.815
x_dihedral_angle_d 26.06
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 859
Nucleic Acid Atoms 0
Heterogen Atoms 177
Solvent Atoms 102

Software

Software
Software Name Purpose
AMoRE phasing
X-PLOR refinement version: 3.843
DENZO data reduction
SCALEPACK data scaling