X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details PROTEIN WAS CRYSTALLIZED FROM 8-20: PEG 8000, 20 MM CALCIUM ACETATE, 100MM SODIUM CACODYLATE, PH 6.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 50.03 α = 90
b = 61.24 β = 90
c = 102.3 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS -- 1995-08
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
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
2.4 10 80.0 0.059 -- -- -- -- 11764 -- -- --
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)
2.4 2.5 77.7 0.217 -- -- -- --

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
MIR 2.4 8.0 -- 2.0 -- 10458 -- -- -- 0.186 0.186 0.285 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.3
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.48
x_bond_d 0.011
x_angle_deg 1.63
x_dihedral_angle_d 22.69
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1908
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 20

Software

Computing
Computing Package Purpose
XDS Data Reduction (intensity integration)
XSCALE Data Reduction (data scaling)
PHASES, X-PLOR 3.1 Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
X-PLOR version: 3.1 model building
PHASES model building