X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.2
Details 3% PEG 3350, 1% N-OCTYL B-D-GLUCOPYRANOSIDE, 10 MM HEPES, 150MM KCL, PH 7.2

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 88.97 α = 90
b = 88.97 β = 90
c = 111.34 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1997-02
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 -- SSRL BL7-1

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
2.5 30 90.8 -- 0.051 -- 3.0 -- 16736 -- 2.0 45.0
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)
2.5 2.67 80.0 -- 0.265 8.0 2.1 --

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
MIR 2.5 30.0 -- 2.0 -- 16259 1083 90.8 -- 0.211 0.211 0.273 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 2.5 2.61 -- 64 2029 0.354 0.295 0.039 91.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 47.24
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.218
x_bond_d 0.008
x_angle_deg 1.422
x_dihedral_angle_d 24.08
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.22
Luzzati Resolution Cutoff (Low) 30.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2400
Nucleic Acid Atoms 0
Heterogen Atoms 40
Solvent Atoms 53

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
MLPHARE Structure Solution
X-PLOR 3.85 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.85 refinement
MLPHARE model building