X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.5
Temperature 277.0
Details 0.4 M Sodium chloride, 0.05 M MES, 0.02 % (W/V) sodium azide, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 58.48 α = 90
b = 86.67 β = 90
c = 46.52 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-03-26
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MAX II BEAMLINE I711 -- MAX II I711

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 24.76 90.5 0.128 -- -- 3.02 16587 15012 1.0 1.0 6.6
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)
2.0 2.13 90.1 0.39 -- -- 1.5 2336

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
-- 2.0 24.76 0.0 0.0 16587 15012 753 90.5 -- -- 0.209 0.245 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 2.0 2.13 -- 117 2336 0.25 0.249 0.023 90.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 19.2
Anisotropic B[1][1] 3.22
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.09
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -2.14
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 4.15
c_scbond_it 5.77
c_mcangle_it 1.31
c_mcbond_it 0.83
c_improper_angle_d 0.72
c_dihedral_angle_d 25.3
c_angle_deg 1.3
c_bond_d 0.006
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Sigma A (Observed) 0.19
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.29
Luzzati Sigma A (R-Free Set) 0.18
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1516
Nucleic Acid Atoms 0
Heterogen Atoms 56
Solvent Atoms 95

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR Structure Solution
CNS 0.9 Structure Refinement
Software
Software Name Purpose
CNS version: 0.9 refinement
X-PLOR model building
SCALEPACK data reduction
DENZO data collection