X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.7
Details HANGING DROP CONTAINING 2.5 MG/ML RNASE T1, 2.5 MG/ML 2GMP, 15% PEG MONOMETHYLETHER 5000, 50 MM TRIS/HCL (PH7.7), 50 MM MGCL2, 50 MM CACL2 AGAINST 30 % PEG MONOMETHYLETHER 5000, 100 MM TRIS/HCL (PH7.7), 100 MM MGCL2, 100 MM CACL2

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 39.82 α = 90
b = 48.85 β = 90
c = 158.77 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-08
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ELLIOTT GX-21 -- -- --

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
2.3 35.6 97.7 -- 0.115 -- 3.14 -- 14434 -- -- 32.8
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)
2.3 2.38 98.1 -- 0.396 2.8 -- --

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 2.3 35.6 -- 0.0 -- 14131 812 97.8 -- -- 0.198 0.241 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 2.3 2.4 -- 96 1636 0.254 0.287 -- 95.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 34.5
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 3.678
x_angle_deg 1.2
x_scbond_it 2.537
x_mcangle_it 2.669
x_mcbond_it 1.682
x_bond_d 0.006
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2355
Nucleic Acid Atoms 0
Heterogen Atoms 53
Solvent Atoms 144

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing
CNS refinement version: 0.4