X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 8.5
Details 30 % PEG 3350, 200 MM NAACETATE, 12-24 MICROM FAD, 100MM NA-TRICINE PH 8.5, pH 8.50, VAPOR DIFFUSION

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 56.73 α = 76.42
b = 55.45 β = 77.22
c = 97.21 γ = 86.45
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRANDEIS - B4 -- 1999-09-19
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X25 -- NSLS X25

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
2.2 43.44 81.7 -- 0.084 -- 1.68 -- 46509 -- -3.0 19.1
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)
2.2 2.28 23.3 -- 0.169 1.4 1.39 --

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
OTHER 2.5 32.23 -- 0.0 -- 35866 3679 92.3 -- 0.2 0.2 0.279 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 2.5 2.66 -- 540 4592 0.281 0.351 0.015 79.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 25.0
Anisotropic B[1][1] -6.37
Anisotropic B[1][2] -5.93
Anisotropic B[1][3] -0.75
Anisotropic B[2][2] 3.62
Anisotropic B[2][3] 4.95
Anisotropic B[3][3] 2.76
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 22.0
c_bond_d 0.008
c_angle_deg 1.4
c_mcangle_it 2.01
c_scbond_it 1.95
c_improper_angle_d 0.86
c_mcbond_it 1.22
c_scangle_it 2.97
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.29
Luzzati Sigma A (Observed) 0.35
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.42
Luzzati Sigma A (R-Free Set) 0.49
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8692
Nucleic Acid Atoms 0
Heterogen Atoms 296
Solvent Atoms 104

Software

Software
Software Name Purpose
CNS refinement version: 0.9
DENZO data reduction
CCP4 data scaling version: (SCALA)