X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.4
Details SLIGHT CONTRACTION DUE TO CRYO (-143 DEG C), pH 7.4

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 60.9 α = 114.1
b = 107.3 β = 97.4
c = 107.2 γ = 90
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 130
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-11-03
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE DW32 -- LURE DW32

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
2.6 16 84.4 0.036 -- -- 1.8 -- 63562 -- 0.0 71.0
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)
2.8 2.9 82.5 0.1 -- 5.0 1.7 --

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
-- 2.8 13.0 -- 3.0 -- 38015 -- 64.0 -- 0.249 0.249 0.348 --
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 2.8 2.93 -- 68 2546 0.406 0.506 -- 35.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 44.7
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.606
x_bond_d 0.016
x_angle_deg 1.894
x_dihedral_angle_d 25.04
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.5
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 11543
Nucleic Acid Atoms 0
Heterogen Atoms 164
Solvent Atoms 24

Software

Computing
Computing Package Purpose
MARXDS Data Reduction (intensity integration)
MARSCALE Data Reduction (data scaling)
X-PLOR Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
X-PLOR model building