X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details 0.3M AMMONIUM SULFATE, PH 8.0, 30% PEG 8000

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 54.9 α = 90
b = 61 β = 90
c = 64.3 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 287
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS MIRRORS 1994-11
Diffraction Radiation
Monochromator Protocol
NI FILTER --
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
1.9 20 91.7 0.032 0.032 -- 1.6 -- 16195 -- 2.0 --
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)
1.9 2.0 80.3 0.119 0.119 3.0 1.3 --

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
DIFFERENCE FOURIER 1.9 8.0 -- 3.0 -- 14950 -- 86.3 -- 0.169 0.169 -- --
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 1.9 1.93 -- -- 531 0.31 -- -- 62.0
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.2
x_bond_d 0.009
x_angle_deg 1.99
x_dihedral_angle_d 24.7
Coordinate Error
Parameter Value
Luzzati Resolution Cutoff (Low) 8.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1629
Nucleic Acid Atoms 0
Heterogen Atoms 34
Solvent Atoms 289

Software

Computing
Computing Package Purpose
XDS Data Reduction (intensity integration)
XSCALE 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
XSCALE data reduction
XDS data collection