X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 5.8
Temperature 291.0
Details PEG 6000, KCl, MgCl2, NH4Cl, Na Acetate, pH 5.8, VAPOR DIFFUSION, SITTING DROP at 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 211.72 α = 90
b = 299.75 β = 90
c = 573.43 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 95
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315 -- 2002-01-22
Diffraction Radiation
Monochromator Protocol
Si(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X25 1.0000 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
2.92 50 99.8 0.246 0.246 -- 7.0 393891 393074 -- -3.0 38.5
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)
2.92 2.97 97.1 0.965 0.965 1.5 3.5 19931

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 3.0 50.0 -- 0.0 360866 347962 3391 96.5 0.209 0.209 0.176 0.209 same test set as 1JJ2
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 3.0 3.11 -- 318 31832 0.271 0.29 0.016 89.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 46.0
Anisotropic B[1][1] -1.23
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -4.45
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 5.68
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.2
c_scangle_it 2.18
c_mcangle_it 1.95
c_improper_angle_d 1.41
c_bond_d 0.007
c_dihedral_angle_d 15.6
c_scbond_it 1.39
c_mcbond_it 1.15
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.28
Luzzati Sigma A (Observed) 0.38
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.33
Luzzati Sigma A (R-Free Set) 0.43
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 28801
Nucleic Acid Atoms 61617
Heterogen Atoms 251
Solvent Atoms 7867

Software

Software
Software Name Purpose
HKL-2000 data collection
SCALEPACK data scaling
CNS refinement
HKL-2000 data reduction
CNS phasing