X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Details CRYSTALS WERE GROWN BY CO-CRYSTALLIZATION BY THE HANGING DROP VAPOR DIFFUSION METHOD USING THE CONDITIONS 5 (MICRO)L OF THE MUTANT PROTEIN (20MG/ML OF THE PROTEIN), 5MM CACL2, 50MM TRIS BUFFER, PH 7.2 AND 2.5 (MICRO)L OF 75% MPD AND 2.0 (MICRO)L OF (2MM) IN THE DROPLET. THE RESERVOIR CONTAINED (50%) OF MPD., pH 7.5, vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 46.58 α = 90
b = 46.58 β = 90
c = 102.91 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 291
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- SIEMENS -- 1995-11-08
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- SIEMENS -- -- --

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
1.89 15 8.0 -- 0.071 -- 5.0 -- 8758 -- -- --
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)
1.89 2.01 -- -- 0.434 -- -- --

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
THE HIGH RESOLUTION ATOMIC COORDINATES OF THE WILD TYPE 1.89 8.0 -- 2.0 -- 8758 -- 72.0 -- 0.18 0.18 -- --
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 1.89 1.97 -- -- -- 0.272 -- -- 51.0
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 3.6
x_bond_d 0.014
x_angle_deg 1.87
x_dihedral_angle_d 22.7
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 957
Nucleic Acid Atoms 0
Heterogen Atoms 32
Solvent Atoms 88

Software

Computing
Computing Package Purpose
XENGEN Data Reduction (intensity integration)
XENGEN Data Reduction (data scaling)
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
XENGEN data reduction
XENGEN data collection