X-RAY DIFFRACTION Experimental Data & Validation


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Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6
Details pH 6.0, VAPOR DIFFUSION, HANGING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 105.28 α = 90
b = 109.71 β = 90
c = 181.12 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1996-04-18
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C -- NSLS X12C

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
2.5 25.4 98.7 -- 0.053 -- 8.3 73319 73319 -- 0.0 42.7

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
SIR, MR 2.5 25.34 -- 0.0 72200 72200 7303 98.6 -- 0.219 0.219 0.282 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 53.2
Anisotropic B[1][1] 5.98
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -5.53
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.45
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 5.98
c_scbond_it 4.68
c_mcangle_it 4.96
c_mcbond_it 3.64
c_improper_angle_d 1.33
c_bond_d 0.013
c_angle_deg 1.6
c_dihedral_angle_d 20.5
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.31
Luzzati Sigma A (Observed) 0.18
Luzzati Resolution Cutoff (Low) 25.4
Luzzati ESD (R-Free Set) 0.42
Luzzati Sigma A (R-Free Set) 0.29
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6906
Nucleic Acid Atoms 5988
Heterogen Atoms 29
Solvent Atoms 349

Software

Computing
Computing Package Purpose
SOFTWARE AT SYNCHROTRON Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CCP4, CNS Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS model building
CCP4 model building
SCALEPACK data reduction
SYNCHROTRON data collection