X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Temperature 277.0
Details PEG 8000, dithiothreitol, tris(hydroxymethyl)aminomethane, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 74.76 α = 90
b = 55.99 β = 109.72
c = 90.21 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD SBC-1 -- 1999-06-17
Diffraction Radiation
Monochromator Protocol
Sagittally focused Si(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID -- APS 19-ID

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
1.5 99 98.8 0.069 -- -- 3.96 111488 111488 0.0 0.0 17.6
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)
1.5 1.55 99.5 0.275 -- 4.6 3.92 11200

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 1.5 19.91 -- 0.0 105350 105350 10521 93.7 0.221 0.221 0.215 0.237 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 1.5 1.59 -- 1684 15386 0.265 0.287 0.007 91.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 16.9
Anisotropic B[1][1] -0.62
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.57
Anisotropic B[2][2] 0.1
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.52
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 2.43
c_scbond_it 1.64
c_mcangle_it 2.49
c_mcbond_it 1.55
c_improper_angle_d 1.26
c_dihedral_angle_d 25.2
c_angle_deg 1.3
c_bond_d 0.006
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.19
Luzzati Sigma A (Observed) 0.08
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.21
Luzzati Sigma A (R-Free Set) 0.09
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5021
Nucleic Acid Atoms 0
Heterogen Atoms 28
Solvent Atoms 806

Software

Computing
Computing Package Purpose
HKL-2000 Data Reduction (intensity integration)
HKL-2000 Data Reduction (data scaling)
CNS Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS model building