X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Liquid Diffusion
pH 7.8
Temperature 298.0
Details 100MM KCL, 1MM EDTA, 50MM TRIS, 35% GLYCEROL, 20:1 CAMP:CRP, pH 7.8, LIQUID DIFFUSION, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 46.26 α = 90
b = 93.34 β = 90
c = 105.34 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV -- 1998-06-01
CCD BRUKER SMART 2000 MULTILAYER 1998-05-21
IMAGE PLATE MACSCIENCE MULTILAYER 1998-08-21
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
-- SINGLE WAVELENGTH
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A 0.97950 NSLS X4A
ROTATING ANODE MACSCIENCE 1.5418 -- --
ROTATING ANODE MACSCIENCE 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
2.2 70 96.1 0.075 0.075 -- 8.0 -- 23757 0.0 0.0 37.3
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 2.24 83.4 0.311 0.311 3.1 2.6 1018

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 2.2 42.67 0.0 0.0 22833 22833 2243 95.6 -- -- 0.23 0.269 SHELLS
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 2.2 2.24 1018 85 815 0.3 0.371 0.04 76.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 52.3
Anisotropic B[1][1] -0.55
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.56
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.01
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.31
c_scbond_it 2.24
c_mcangle_it 2.64
c_mcbond_it 1.57
c_improper_angle_d 0.7
c_dihedral_angle_d 21.8
c_angle_deg 1.3
c_bond_d 0.007
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.28
Luzzati Sigma A (Observed) 0.22
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.34
Luzzati Sigma A (R-Free Set) 0.31
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3176
Nucleic Acid Atoms 0
Heterogen Atoms 74
Solvent Atoms 83

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS model building
SCALEPACK data reduction
DENZO data collection