X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6.8
Temperature 277.0
Details cacodylate buffer, MPD, Rhodium-hexammine, pH 6.8, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 53.82 α = 90
b = 19.38 β = 109.9
c = 50.3 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
AREA DETECTOR ENRAF-NONIUS FAST mirrors 1997-03-20
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ENRAF-NONIUS FR571 1.5418 -- --

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
1.81 6 97.0 0.039 0.041 -- 3.5 3738 3641 2.0 4.0 16.4
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)
1.8 2.0 43.2 0.212 0.206 3.0 2.5 517

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
FOURIER SYNTHESIS 1.8 6.0 4.0 2.0 3738 3641 311 95.0 0.176 0.172 0.172 0.202 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 1.8 2.0 -- 40 -- 0.169 0.21 0.02 43.2
X Ray Diffraction 2.0 2.3 -- 93 -- 0.164 0.191 0.02 98.5
X Ray Diffraction 2.3 2.7 -- 80 -- 0.176 0.211 0.02 98.7
X Ray Diffraction 2.7 3.5 -- 69 -- 0.168 0.187 0.02 96.8
X Ray Diffraction 3.5 6.0 -- 30 -- 0.195 0.19 0.02 76.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model isotropic
Mean Isotropic B 18.4
RMS Deviations
Key Refinement Restraint Deviation
s_from_restr_planes 0.071
s_non_zero_chiral_vol 0.097
s_angle_d 0.032
s_bond_d 0.011
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 0
Nucleic Acid Atoms 372
Heterogen Atoms 16
Solvent Atoms 46

Software

Computing
Computing Package Purpose
MADNES Data Reduction (intensity integration)
CCP4 (AGROVATA, ROTAVATA) Data Reduction (data scaling)
AMORE Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
AMORE model building
ROTAVATA-AGROVATA data reduction
MADNES data collection