X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Temperature 287.0
Details PROTEIN WAS CRYSTALLIZED AT 14 DEGREES FROM 20% PEG 4000, 9.5% ISOPROPANOL, 100 MM HEPES, PH 7.5, temperature 287K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 84.17 α = 105.2
b = 86.22 β = 115.13
c = 88.33 γ = 100.02
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD PRINCETON 2K -- 1997-03-02
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM14 -- ESRF BM14

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
2.1 20 75.8 -- 0.056 -- 1.6 -- 90475 -- 5.0 14.6
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)
2.1 2.18 38.6 -- 0.104 5.0 1.05 --

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 2.1 8.0 -- 0.0 -- 88476 1789 75.2 -- 0.223 0.223 0.253 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 2.1 2.23 -- 153 7734 0.23 0.268 0.022 40.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 15.5
Anisotropic B[1][1] -2.92
Anisotropic B[1][2] 0.13
Anisotropic B[1][3] -0.49
Anisotropic B[2][2] 3.08
Anisotropic B[2][3] 1.1
Anisotropic B[3][3] -0.17
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.09
c_scbond_it 1.86
c_mcangle_it 2.31
c_mcbond_it 1.4
c_improper_angle_d 2.74
c_bond_d 0.011
c_angle_deg 2.4
c_dihedral_angle_d 25.5
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.24
Luzzati Sigma A (Observed) 0.13
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.28
Luzzati Sigma A (R-Free Set) 0.19
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 15232
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 693

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
CNS 0.3 Structure Refinement
Software
Software Name Purpose
CNS version: 0.3 refinement
AMORE model building