X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop Seeding
pH 5.5
Details PROTEIN WAS CRYSTALLIZED FROM 0.8M NA CITRATE, PH 5.5. THE HANGING DROPS WERE MICRO-SEEDED., vapor diffusion - hanging drop - seeding

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 43.25 α = 90
b = 51.62 β = 115.43
c = 45.34 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 288
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC -- 1995-04
Diffraction Radiation
Monochromator Protocol
NI FILTER --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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 50 91.0 0.096 0.096 -- 2.8 -- 11200 -- -3.0 --
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 2.06 89.7 -- 0.179 2.0 2.4 --

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 2.0 8.0 -- 0.0 -- 9342 812 91.0 -- 0.188 0.188 0.247 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 2.19 -- 83 1021 0.214 0.325 -- 89.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 11.2
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 2.0
x_scbond_it 2.0
x_mcangle_it 1.5
x_mcbond_it 1.5
x_improper_angle_d 1.664
x_bond_d 0.012
x_angle_deg 2.785
x_dihedral_angle_d 24.99
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1589
Nucleic Acid Atoms 0
Heterogen Atoms 28
Solvent Atoms 46

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR 3.1 Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
X-PLOR version: 3.1 model building
SCALEPACK data reduction
DENZO data collection