X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6.5
Temperature 277.0
Details cacodylate, iridium hexammine, MPD, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 53.75 α = 90
b = 19.4 β = 105.7
c = 45.84 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH Si(III) curvated crystal 1998-10-10
Diffraction Radiation
Monochromator Protocol
Si(III) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE DW32 0.967 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
1.53 10 91.5 0.044 0.046 -- 6.5 6772 6518 2.0 4.0 13.5
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)
1.53 1.6 75.0 0.156 0.167 4.4 3.0 729

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
MOLECULAR REPLACEMENT 1.53 8.0 4.0 2.0 6772 6518 562 96.2 0.18 0.177 0.177 0.205 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 1.53 1.6 -- 51 -- 0.235 0.291 0.02 75.3
X Ray Diffraction 1.6 1.8 -- 152 -- 0.235 0.291 0.02 88.2
X Ray Diffraction 1.8 2.0 -- 89 -- 0.235 0.291 0.02 95.1
X Ray Diffraction 2.0 4.0 -- 233 -- 0.235 0.291 0.02 97.5
X Ray Diffraction 4.0 10.0 -- 37 -- 0.235 0.291 0.02 96.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model ISOTROPIC
Mean Isotropic B 18.5
RMS Deviations
Key Refinement Restraint Deviation
s_bond_d 0.012
s_non_zero_chiral_vol 0.075
s_from_restr_planes 0.027
s_angle_d 0.026
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 0
Nucleic Acid Atoms 370
Heterogen Atoms 18
Solvent Atoms 49

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
AMoRE phasing
SHELXL-97 refinement
CCP4 data scaling version: (SCALA)